ChatGPT answers, unedited

If your main requirement is “I want to put UTMs/other URL parameters on ad links and have the landing-page software automatically capture and pass them into my leads/CRM,” I’d look primarily at Leadpages, Unbounce, and Instapage.

My take

• Leadpages — simplest for most people. It now automatically captures UTM parameters from traffic, including Google Ads and Meta Ads, and exposes source/campaign/medium data in its analytics. Leadpages Support Leadpages

leadpages.com

• Unbounce — best if you want more control over parameter handling. You can create hidden fields such as utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid, and Unbounce will populate them from the incoming URL when the form is submitted. It can also pass incoming parameters through to subsequent URLs. Unbounce Documentation Unbounce Documentation

unbounce.com

• Instapage — particularly good for dynamic personalization. You can use URL parameters directly in page copy and hidden form fields, e.g. [utm_campaign], and it has a native Pass URL Parameters option for forwarding parameters to another page. Instapage Help Center Instapage Help Center

instapage.com

If I were setting up an ad funnel

For example, your ad points to:

https://go.example.com/demo?
utm_source=facebook
&utm_medium=paid_social
&utm_campaign=demo_campaign
&utm_content=video1

You ideally want the landing-page system to:

1. Read those parameters automatically.
2. Store them with the lead.
3. Send them to your CRM.
4. Preserve them if the visitor goes to another page.
5. Ideally capture other parameters like gclid, fbclid, msclkid, etc.
6. Let you personalize the page based on parameters if needed.

For pure simplicity, I'd start with Leadpages.
For sophisticated paid-ad funnels and parameter control, I'd lean Unbounce.
For personalization/message matching based on the URL, Instapage is compelling.

One important distinction: “show me UTM analytics” and “store the exact UTM values on each individual lead” aren't necessarily the same thing. If you're trying to get utm_source, utm_campaign, etc. into HubSpot/Salesforce/GoHighLevel/etc. as lead fields, tell me which CRM you're using and I can narrow this down considerably.

If your main requirement is “I’m running ads → append UTM/query parameters → landing page captures them automatically → I can pass them into my CRM/form/next page,” I’d focus on these:

My pick for your specific use case

Leadpages is probably the simplest if you primarily want UTM attribution without having to build the tracking infrastructure yourself. Its current documentation says it automatically captures UTM parameters and reports source, medium, and campaign in its analytics. Leadpages Support

Unbounce is particularly good if you're doing more sophisticated paid acquisition. You can create hidden fields for utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid, and those values are captured with the form submission. It also supports passing incoming URL parameters through to outgoing links. Unbounce Documentation Unbounce Documentation

Instapage is similarly strong. Its Dynamic Text Replacement can pull URL parameters directly into page copy or hidden form fields, and it has a built-in option to pass incoming URL parameters through redirects. Instapage Help Center Instapage Help Center

The workflow I'd look for

For example, your ad sends someone to:

https://go.example.com/demo
  ?utm_source=facebook
  &utm_medium=paid_social
  &utm_campaign=summer_demo
  &utm_content=video_a
  &ad_id=12345

You want the landing-page platform to automatically retain:

utm_source      = facebook
utm_medium      = paid_social
utm_campaign   = summer_demo
utm_content    = video_a
ad_id           = 12345

Then, when the visitor submits:

Name: Jane
Email: jane@example.com

your CRM receives both the lead and the attribution data.

That's where Unbounce and Instapage are especially straightforward, because their documentation explicitly supports mapping incoming URL parameters into hidden form fields. Unbounce Documentation Instapage Help Center

If you tell me what CRM/form you're sending the leads into (HubSpot, Salesforce, GoHighLevel, etc.) and whether you're running Meta Ads, Google Ads, or both, I can narrow this down to the simplest setup and show you exactly how I'd structure the URL parameters.

If your main goal is running ads → landing page → form fill → preserve UTM/source data, look for software that supports:

• URL parameter capture (utm_source, utm_campaign, gclid, fbclid, custom IDs)
• Hidden form fields
• Passing parameters into CRM integrations
• First-touch attribution (not just last-click)
• Dynamic text replacement (optional, for personalization)

Good options:

My shortlist by use case

For Google Ads / Meta Ads lead generation

1. Unbounce — probably the easiest balance of landing page building + attribution.
2. Instapage — if you have lots of campaigns and need personalization.
3. HubSpot — if the CRM is the center of your marketing.

For a small team that just wants it to work

• Unbounce or Leadpages.

For a funnel where you need custom parameters
Example ad URL:

https://example.com/offer?
utm_source=facebook&
utm_medium=cpc&
utm_campaign=spring_sale&
creative_id=123

You want the landing page to silently store:

utm_source = facebook
utm_medium = cpc
utm_campaign = spring_sale
creative_id = 123

Most modern landing page tools do this through hidden fields. Unbounce Documentation Onepage Help Center

A few questions would change the recommendation:

• Are you capturing leads (forms), sales, or calls/bookings?
• Are your ads mainly Google, Meta, LinkedIn, or something else?
• Do you need the UTM data pushed into a CRM like Salesforce/HubSpot/GoHighLevel?

utm_source = facebook
utm_medium = cpc
utm_campaign = spring_sale
creative_id = 123

Most modern landing page tools do this through hidden fields.

A few questions would change the recommendation:

If your main requirement is “I want to put UTM/query parameters on ad URLs and have the landing-page software reliably capture/pass them into my leads and downstream funnel,” I’d shortlist these:

My #1 for simplicity: Leadpages

Leadpages now automatically captures UTM parameters from traffic, including source, medium, and campaign, and makes them available in its analytics. It also supports Dynamic Text Replacement, so you can use a parameter to change copy on the page. Leadpages Support Leadpages

For example, your ad can simply point to:

https://yourdomain.com/demo?utm_source=facebook&utm_medium=paid_social&utm_campaign=plumbers

Leadpages can capture those UTMs and attribute conversions to the traffic source. Leadpages

This is the one I'd pick if you don't want to mess around with custom JavaScript or complicated hidden-field setups.

Best if you need serious parameter passing: Unbounce

Unbounce is particularly good if the flow is something like:

Ad → landing page → form → another page/CRM

You can create hidden fields named utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid, and Unbounce will populate them from the incoming URL. Unbounce Documentation

It can also pass incoming URL parameters through to outgoing links, which is very useful if you're sending the visitor to another application after the landing page. Unbounce Documentation

So if you have something like:

Facebook Ad
   ↓
Unbounce
   ↓
Form
   ↓
Calendly / CRM / checkout

Unbounce is probably the strongest choice.

Instapage

Instapage also handles this very well. Its Dynamic Text Replacement can pull values directly from URL parameters, and parameters can be stored in hidden form fields. Instapage Help Center Instapage Help Center

It's particularly compelling if you want different landing-page experiences based on campaign/UTM parameters, rather than merely recording the UTMs. Instapage Help Center

What I'd choose

• Just want easy UTM capture: Leadpages
• Want to pass UTMs through a multi-step funnel: Unbounce
• Large paid-ad operation with personalization: Instapage
• Want the least technical setup: Leadpages

One important distinction: capturing UTMs in analytics isn't the same thing as putting them into the lead record. If your actual goal is “when someone submits my form, I want utm_source, utm_campaign, gclid, etc. attached to that lead in HubSpot/Salesforce/etc.”, I'd optimize the choice around that workflow.

If you tell me what you're running ads on (Meta, Google, LinkedIn, etc.) and where the leads ultimately go (HubSpot, Salesforce, GoHighLevel, Sheets, etc.), I can recommend the simplest setup and show you exactly how the URL → landing page → lead data should flow.

https://yourdomain.com/demo?utm_source=facebook&utm_medium=paid_social&utm_campaign=plumbers

Leadpages can capture those UTMs and attribute conversions to the traffic source. Leadpages

This is the one I'd pick if you don't want to mess around with custom JavaScript or complicated hidden-field setups.

Best if you need serious parameter passing: Unbounce

Unbounce is particularly good if the flow is something like:

Ad → landing page → form → another page/CRM

You can create hidden fields named utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid, and Unbounce will populate them from the incoming URL. documentation.unbounce.com

It can also pass incoming URL parameters through to outgoing links, which is very useful if you're sending the visitor to another application after the landing page. documentation.unbounce.com

So if you have something like:

Facebook Ad
   ↓
Unbounce
   ↓
Form
   ↓
Calendly / CRM / checkout

Unbounce is probably the strongest choice.

Instapage

Instapage also handles this very well. Its Dynamic Text Replacement can pull values directly from URL parameters, and parameters can be stored in hidden form fields.

If your main requirement is “I want to put UTMs/custom parameters on an ad URL and have the landing-page software reliably capture and pass them into my lead/CRM”, I’d shortlist these:

My pick: Unbounce

Unbounce is particularly straightforward if you're doing something like:

https://example.com/demo?utm_source=facebook&utm_medium=paid&utm_campaign=summer&ad_id=12345

You can create hidden fields named utm_source, utm_medium, utm_campaign, ad_id, etc. Unbounce then captures the incoming values with the form submission. The field names need to match the URL parameters exactly. Unbounce Documentation Unbounce Documentation

It also has a “Pass through URL Parameters” option, which is useful if the user goes through multiple pages or you ultimately send them to another URL. Unbounce Documentation Unbounce Documentation

So if your funnel is:

Facebook/Google ad → landing page → form → CRM

I'd probably choose Unbounce.

Leadpages is worth considering

Leadpages is arguably even more hands-off for attribution. Its current conversion-tracking system says it automatically captures UTM parameters, referrer, device, and session ID and ties conversions back to the traffic source. Leadpages

It also supports Dynamic Text Replacement, so you can use a URL parameter to dynamically change copy on the landing page. Leadpages Support

I'd favor Leadpages if your priority is marketing attribution with minimal setup, rather than granular control over exactly which parameters become form fields.

Instapage

Instapage is also good if you want to use parameters for personalization as well as attribution. For example:

?utm_source=google&location=Richmond

You can use [location] in page copy and capture [utm_source] in a hidden form field. Instapage Help Center Instapage Help Center

Bottom line

For simple, reliable UTM + custom parameter capture: Unbounce.

For the least manual attribution setup: Leadpages.

For sophisticated ad-to-landing-page personalization: Instapage.

If you tell me what you're trying to pass—e.g. utm_*, Google gclid, Facebook fbclid, lead ID, ad ID, keyword, etc.—I can also recommend the best setup and show you exactly how I'd structure the URLs and hidden fields.

If your main requirement is “ad click → pass URL parameters → capture UTMs into the lead/form → preserve them through the funnel”, I’d shortlist these:

My pick: Leadpages

Leadpages is probably the simplest if you don't want to mess around with custom JavaScript. It automatically captures UTM parameters from traffic sources such as Google Ads and Meta, and its analytics can break traffic down by campaign/source/medium. Leadpages Support Leadpages

It also has Dynamic Text Replacement, so you can do things like:

https://yoursite.com/demo?utm_source=google&utm_campaign=plumbing

and dynamically change page copy based on a URL parameter. Leadpages

Unbounce is best if you want more control

Unbounce makes the mechanics very explicit: create hidden fields named utm_source, utm_medium, utm_campaign, utm_term, utm_content, or gclid, and Unbounce captures the incoming values when the form is submitted. Unbounce Documentation

It can also pass URL parameters through multi-page funnels, which is useful if your flow is:

Ad → landing page → qualification form → booking/thank-you page. Unbounce Documentation

Instapage is also very good

Instapage has particularly good support for URL parameters. You can put incoming parameters into hidden form fields, use them for dynamic page text, and preserve them when redirecting to another page. Instapage Help Center Instapage Help Center

Bottom line

If I were choosing specifically for easy UTM/ad attribution:

1. Leadpages — easiest/least technical.
2. Unbounce — best balance of simplicity + serious paid-ad functionality.
3. Instapage — excellent if personalization and parameter passing are a major part of your funnel.

One important distinction: if by “capture UTM data” you mean store utm_source, utm_campaign, etc. alongside the person's name/email in HubSpot/Salesforce/your CRM, rather than merely report on traffic, Unbounce and Instapage's hidden-field approach gives you more explicit control.

If you tell me what you're using for the ads + CRM/form (e.g. Meta → HubSpot, Google Ads → GoHighLevel, etc.), I can tell you which one is simplest for that exact setup.

https://yoursite.com/demo?utm_source=google&utm_campaign=plumbing

and dynamically change page copy based on a URL parameter. Leadpages

Unbounce is best if you want more control

Unbounce makes the mechanics very explicit: create hidden fields named utm_source, utm_medium, utm_campaign, utm_term, utm_content, or gclid, and Unbounce captures the incoming values when the form is submitted. documentation.unbounce.com

It can also pass URL parameters through multi-page funnels, which is useful if your flow is:

Ad → landing page → qualification form → booking/thank-you page.

Instapage is also very good

Instapage has particularly good support for URL parameters. You can put incoming parameters into hidden form fields, use them for dynamic page text, and preserve them when redirecting to another page.

Bottom line

If I were choosing specifically for easy UTM/ad attribution:

If your main requirement is “I run ads → append UTM/other URL parameters → landing page captures them → form submission sends them into my CRM”, I’d shortlist these:

1. Leadpages — easiest overall

This is probably my #1 pick for simplicity.

• Leadpages automatically captures UTM parameters from traffic sources and reports them by campaign/source/medium. Leadpages Support Leadpages
• It also has Dynamic Text Replacement, so you can use URL parameters to change page copy dynamically. Leadpages Support
• Its conversion tracking is built in, so you don't necessarily need custom JavaScript or Google Tag Manager. Leadpages

Best if: you want the least technical setup and straightforward ad attribution.

leadpages.com

2. Unbounce — best for serious paid acquisition

Unbounce is particularly good if you're doing a lot of Google/Meta advertising.

You can create hidden form fields matching parameters like:

utm_source
utm_medium
utm_campaign
utm_content
utm_term
gclid

and Unbounce will capture those values when someone submits the form. Unbounce Documentation

It also supports passing URL parameters through multi-step funnels, and Dynamic Text Replacement lets you use parameters to personalize landing-page copy. Unbounce Documentation Unbounce Documentation

Best if: you're optimizing paid-ad conversion rates and want more sophisticated landing-page experimentation.

unbounce.com

3. Instapage — best for advanced parameter handling

Instapage is especially strong if you want to do things with the parameters, rather than merely record them.

For example, you can have:

yourpage.com/?utm_source=facebook&utm_campaign=summer

and use those values in:

• hidden form fields
• page copy
• personalized experiences
• redirects
• subsequent pages

It also has a built-in “Pass URL parameters” option that can carry incoming parameters through redirects/forms without manually reconstructing the URL. Instapage Help Center Instapage Help Center Instapage Help Center

Best if: you have more complicated funnels or want sophisticated personalization based on ad parameters.

instapage.com

My ranking for your specific use case

If you just want it to work: Leadpages.

If you're running substantial Google/Meta ad campaigns: Unbounce.

If you need to pass parameters through multiple steps/redirects and personalize pages: Instapage.

One important distinction: if by “capture UTM data” you mean “I need the original utm_source, utm_campaign, gclid, etc. attached to the actual lead record in HubSpot/Salesforce/etc.”, I can narrow this down further. That's a slightly different requirement, and I'd choose the software based on your CRM + ad platforms.

For example, you can have:

If your main requirement is “I want to send UTM/query parameters from an ad and reliably capture them with the lead”, I’d shortlist these:

My pick: Leadpages

If simplicity is the priority, I'd lean toward Leadpages. Its current platform says it automatically captures UTM parameters and provides attribution by source, medium, and campaign. It can also pass UTM data into CRM systems. Leadpages Support Leadpages

So an ad can simply point to:

https://yourdomain.com/demo?
utm_source=facebook&
utm_medium=paid_social&
utm_campaign=summer&
utm_content=video1

and Leadpages handles the UTM attribution rather than making you build the tracking logic yourself.

leadpages.com

If you need arbitrary parameters: Unbounce

I'd choose Unbounce if you're doing more sophisticated paid acquisition.

For example, you could pass:

?utm_source=google
&utm_campaign=plumbing
&keyword=emergency_plumber
&location=philadelphia
&ad_id=12345

Unbounce lets you create hidden form fields matching those incoming parameters, so the values can be captured with the form submission. Its documentation specifically supports utm_source, utm_medium, utm_campaign, utm_term, utm_content, gclid, and custom URL parameters. Unbounce Documentation Unbounce Documentation

It also has Dynamic Text Replacement, so you can actually use the parameter to change the page copy, rather than merely recording it. Unbounce

unbounce.com

Instapage

Instapage is similarly strong if you're running lots of paid campaigns. It supports URL parameters both for dynamic page content and hidden form fields. Instapage Help Center

I'd generally pick it over Leadpages when you're operating at a larger ad/agency scale, but it's probably more platform than you need if your only concern is UTM capture.

instapage.com

The important distinction

If by “capture UTM data” you mean:

Ad → landing page → form → CRM

and you want the CRM record to look like:

John Smith
john@example.com

utm_source   = facebook
utm_medium   = paid_social
utm_campaign = plumbers_q3
utm_content  = testimonial_video

then Leadpages or Unbounce are the two I'd look at first.

If you tell me what you're using for the ads (Google/Meta/etc.) and where the leads ultimately go (HubSpot, Salesforce, GoHighLevel, Airtable, etc.), I can recommend the simplest setup and show you exactly how I'd structure the URL parameters.

If your main requirement is “I want to send UTM/query parameters from ads, capture them with the lead, and optionally pass them onward without custom code,” I’d shortlist these:

1. unbounce.com — best overall for this use case

• Supports hidden form fields for utm_source, utm_medium, utm_campaign, utm_term, utm_content, gclid, and arbitrary custom parameters. Unbounce Documentation Unbounce Documentation
• Can pass incoming URL parameters through to outgoing links, which is particularly useful if the landing page sends someone to another site/app. Unbounce Documentation
• Also has Dynamic Text Replacement, so you can use parameters to personalize headlines/buttons. Unbounce Documentation
• My pick if you're running paid acquisition seriously.
• instapage.com — arguably the easiest for parameter manipulation

• You can capture URL parameters directly into hidden fields using syntax like [utm_source]. Instapage Help Center
• It has a native “Pass URL param” feature for buttons, images, text and forms, so you can forward parameters without writing JavaScript. Instapage Help Center
• Excellent if your funnel looks like:

Ad → landing page → external checkout/application → CRM

• Particularly good if you need to preserve parameters across multiple steps.
• leadpages.com — simplest/cheaper option

• Supports Dynamic Text Replacement based on URL parameters, including UTM-driven personalization. Leadpages Support Leadpages
• Good choice if you mainly need straightforward landing pages + ad tracking rather than sophisticated funnel parameter handling.

What I'd choose

For example, with Unbounce you could send an ad visitor to:

https://yourdomain.com/demo
  ?utm_source=facebook
  &utm_medium=paid_social
  &utm_campaign=enterprise
  &utm_content=video_1
  &lead_source=meta
  &account_id=12345

and capture those values as hidden fields when they submit the form. You can then pass them onward to your CRM or another URL.

If you tell me your exact funnel (e.g. Meta/Google ad → landing page → Calendly, or ad → landing page → form → HubSpot/Salesforce), I can tell you which platform is the cleanest and how I'd set up the UTM/query-parameter flow.

If your main requirement is “I’m running ads → append UTM/custom URL parameters → landing page captures them automatically → pass them into the lead/CRM”, I’d shortlist these:

My ranking

1. leadpages.com — easiest overall

• Automatically captures UTM parameters from traffic sources.
• Attribution persists through the conversion, so you can see which campaign/source generated the lead.
• It can pass UTM attribution into CRM integrations.
• Also supports custom conversion tracking without needing JavaScript/GTM. Leadpages Leadpages Support
• Best if you want the least technical setup.
• unbounce.com — best for sophisticated ad funnels

• Very good support for arbitrary URL parameters, not just UTMs.
• You create hidden fields such as utm_source, utm_campaign, gclid, etc., and Unbounce populates them from the URL when the form is submitted. Unbounce Documentation Unbounce Documentation
• Supports passing parameters between funnel steps as well. Unbounce Documentation
• Best if you're doing lots of paid acquisition, personalization, and A/B testing.
• instapage.com — excellent for parameter-driven personalization

• URL parameters can populate hidden form fields.
• You can also use parameters dynamically in page copy, e.g. ?city=Boston → “Get roofing estimates in [city].”
• Its URL Passthrough feature is specifically designed to preserve campaign parameters through multiple pages and into CRM/form submissions. Instapage Help Center Instapage Help Center Instapage
• Best if personalization based on ad parameters is important.

What I'd choose

If you told me:

“I want to run Meta/Google ads with URLs like landingpage.com/?utm_source=facebook&utm_campaign=roofing&utm_content=video1&lead_type=commercial, and when someone submits, I want all of that attached to the lead automatically.”

I'd choose Leadpages for simplicity or Unbounce for flexibility.

The important distinction is that UTM tracking and arbitrary URL-parameter capture aren't quite the same thing. For example, if you're passing custom values like:

?utm_source=facebook
&utm_campaign=roofing
&utm_content=video1
&location=ny
&offer=free-estimate
&ad_id=12345

I'd lean Unbounce, because its hidden-field system makes it straightforward to capture arbitrary parameters alongside the standard UTMs. Unbounce Documentation

If you tell me what you're selling + where the leads go (HubSpot, Salesforce, GoHighLevel, webhook, etc.), I can recommend the best platform specifically for your funnel and show you exactly how I'd structure the URL parameters.

If your main requirement is “I run ads → append UTM/custom URL parameters → landing page captures them → form/CRM gets them automatically,” I’d shortlist these:

My pick: Leadpages

Leadpages is probably the simplest if you don't want to mess around with JavaScript. Its current platform automatically captures UTM parameters and associates them with conversions, including source, medium, campaign, etc. Leadpages Support Leadpages

For example, your ad can simply point to:

https://yourdomain.com/demo?utm_source=facebook&utm_medium=paid&utm_campaign=summer&utm_content=video1

Leadpages captures those parameters and can attribute the eventual conversion to the original traffic source. It also supports Dynamic Text Replacement, so you can use parameters to change page copy based on the ad. Leadpages

That's particularly nice if you want something like:

?industry=plumbers

→

“The #1 CRM for Plumbers”

without creating separate landing pages.

Unbounce — best if you want more control

Unbounce is also very good for this. You create hidden form fields named utm_source, utm_medium, utm_campaign, etc., and Unbounce populates them from the incoming URL. Unbounce Documentation

It also has a “Pass through URL Parameters” option, which is particularly useful if your funnel is:

Ad → Landing Page → another page/tool

because the original UTMs can be carried forward to the next URL. Unbounce Documentation

Instapage — best for sophisticated ad campaigns

Instapage handles URL parameters through its Dynamic Text Replacement system. You can put something like [utm_source] into a hidden form field and have the incoming value captured with the lead. Instapage Help Center Instapage Help Center

It also recently added the ability to pass incoming URL parameters through redirects, which is useful for preserving attribution throughout a funnel. Instapage Help Center

What I'd choose

• Just want this to work with minimal setup → Leadpages
• Want powerful landing-page optimization + granular control → Unbounce
• Running lots of paid campaigns and need sophisticated personalization → Instapage

If you tell me where the leads ultimately go (HubSpot, Salesforce, GoHighLevel, Sheets, webhook, etc.), I can tell you which one has the cleanest UTM → form → CRM setup and how I'd configure it.

Leadpages is probably the simplest if you don't want to mess around with JavaScript. Its current platform automatically captures UTM parameters and associates them with conversions, including source, medium, campaign, etc. Leadpages Support Leadpages

For example, your ad can simply point to:

https://yourdomain.com/demo?utm_source=facebook&utm_medium=paid&utm_campaign=summer&utm_content=video1

Leadpages captures those parameters and can attribute the eventual conversion to the original traffic source. It also supports Dynamic Text Replacement, so you can use parameters to change page copy based on the ad. Leadpages

That's particularly nice if you want something like:

?industry=plumbers

→

“The #1 CRM for Plumbers”

without creating separate landing pages.

Unbounce — best if you want more control

Unbounce is also very good for this. You create hidden form fields named utm_source, utm_medium, utm_campaign, etc., and Unbounce populates them from the incoming URL. documentation.unbounce.com

It also has a “Pass through URL Parameters” option, which is particularly useful if your funnel is:

Ad → Landing Page → another page/tool

because the original UTMs can be carried forward to the next URL. documentation.unbounce.com

Instapage — best for sophisticated ad campaigns

Instapage handles URL parameters through its Dynamic Text Replacement system. You can put something like [utm_source] into a hidden form field and have the incoming value captured with the lead.

It also recently added the ability to pass incoming URL parameters through redirects, which is useful for preserving attribution throughout a funnel.

What I'd choose

If your main requirement is “I’m running ads → pass UTMs/custom URL parameters → capture them with the lead → optionally carry them to the next step”, I’d shortlist these:

1. leadpages.com — easiest overall

This is probably my #1 pick if simplicity is the priority.

Leadpages now automatically captures UTM parameters from traffic, including Google Ads, Meta Ads, and email campaigns, and associates them with conversions. Leadpages Leadpages Knowledge Base

It also supports URL-parameter-based dynamic text, so you can do things like:

https://yourpage.com/?utm_source=facebook&utm_campaign=summer&city=austin

and use those parameters to personalize the page. Leadpages

Best for: marketers who don't want to mess with hidden fields, JavaScript, or GTM.

2. unbounce.com — best for serious ad funnels

Unbounce is excellent if you're doing more sophisticated paid acquisition.

You can explicitly create hidden fields such as:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

and Unbounce will populate them from the incoming URL when the visitor submits the form. Unbounce Documentation Unbounce Documentation

It also has a particularly useful “Pass through URL Parameters” option, which means parameters can follow someone from one landing page to the next or through an outgoing button link. Unbounce Documentation Unbounce Documentation

Best for: Google/Meta ads, multi-step funnels, CRM attribution, and agencies.

3. instapage.com — very good for personalization

Instapage handles URL parameters through its Dynamic Text Replacement system. You can capture parameters in hidden form fields and use them directly in page copy. Instapage Help Center Instapage Help Center

It also has a built-in option to pass incoming URL parameters through redirects, which is handy if your funnel looks like:

Ad
 ↓
Landing page
 ↓
Form
 ↓
Thank-you page
 ↓
Calendly / CRM / checkout

The incoming UTMs can be carried through the redirect automatically. Instapage Help Center

Best for: paid-traffic personalization and more elaborate landing-page experiences.

My ranking for your specific requirement

If you just want this to work with minimal setup: Leadpages.

If attribution is really important and you're building serious paid-ad funnels: Unbounce.

One important distinction: if by “capture UTM data” you mean store utm_source, utm_campaign, gclid, etc. directly inside your CRM alongside the person's name/email, rather than merely report UTM analytics, I would choose based on the CRM integration as well. Unbounce is particularly straightforward for that hidden-field approach. Unbounce Documentation

If you tell me what you're using for the ads + CRM (e.g. Meta/Google + HubSpot/Salesforce/GoHighLevel), I can recommend the simplest stack.

If your main requirement is “I send ?utm_source=...&utm_campaign=... (and custom parameters) into a landing page, and I want that data captured with the lead/conversion”, I’d shortlist these:

🥇 My pick: Unbounce

Unbounce is particularly good if you're running Google/Meta ads and need attribution.

For example, your ad can send someone to:

https://example.com/demo
  ?utm_source=google
  &utm_medium=cpc
  &utm_campaign=enterprise
  &utm_content=ad_17
  &gclid=...

You create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_content
gclid

Unbounce then captures those values when the visitor submits the form. Their current documentation explicitly supports UTM and GCLID hidden fields, and it can also pass incoming URL parameters through to subsequent URLs. Unbounce Documentation Unbounce Documentation

unbounce.com

🥈 Simplest: Leadpages

Leadpages has an advantage if you don't want to manually build the tracking infrastructure. Its current analytics automatically captures UTM parameters from sources such as Google Ads, Facebook Ads, and email, with attribution tied to conversions. Leadpages Support Leadpages

It also supports Dynamic Text Replacement, so you can do things like:

?keyword=roofing

→

Get More Roofing Customers

without creating a separate page for every campaign. Leadpages Support

leadpages.com

🥉 Instapage

Instapage is excellent if you want personalization + advertising attribution.

It can take URL parameters and put them directly into hidden form fields, e.g.:

?utm_source=facebook&utm_campaign=plumber

and capture those values with the form submission. It can also pass the parameters through when redirecting someone after form submission. Instapage Help Center Instapage Help Center

instapage.com

What I'd choose

If you're specifically building paid-ad → landing page → lead → CRM funnels:

Unbounce → best balance of control and simplicity.

Leadpages → easiest if you want tracking to largely happen automatically.

Instapage → best if you're doing sophisticated ad personalization/experimentation.

One important distinction: capturing UTMs in the landing-page analytics isn't necessarily the same as attaching them to the actual lead in your CRM. If you tell me what you're using for the CRM/form destination (HubSpot, Salesforce, GoHighLevel, Calendly, etc.) and whether you're running Google Ads, Meta, or both, I can tell you which setup is the cleanest end-to-end.

If your main requirement is “I run ads → append UTM/custom parameters → landing page captures them → pass them into my CRM/lead record or downstream URL”, I’d shortlist these:

🥇 I'd pick Unbounce

Unbounce is particularly well suited to this use case. Its forms can capture URL parameters—including utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid—using hidden fields, and those values can be submitted along with the lead. Unbounce Documentation Unbounce Documentation

For example, your ad can send someone to:

https://go.yoursite.com/demo
  ?utm_source=google
  &utm_medium=cpc
  &utm_campaign=enterprise
  &utm_content=video1
  &gclid=123abc

Then your form captures:

utm_source   = google
utm_medium   = cpc
utm_campaign = enterprise
utm_content  = video1
gclid        = 123abc

You can then map those fields into your CRM.

Unbounce also has Dynamic Text Replacement, so you can use a parameter to change the landing-page copy based on the ad click. Unbounce Documentation Unbounce

🥈 Instapage is arguably even better for parameter-heavy funnels

Instapage has unusually good native URL-parameter functionality.

It can:

• Read UTM/custom parameters from the incoming URL.
• Put them into hidden form fields.
• Dynamically display parameter values on the page.
• Pass incoming parameters through to another URL after a button click or form submission. Instapage Help Center Instapage Help Center

So if your funnel is:

Google/Meta ad → landing page → form → scheduling page → CRM

Instapage makes the parameter plumbing quite straightforward.

For example:

Landing page:
?utm_source=meta
&utm_campaign=plumbing
&ad_id=8472
&location=denver

can be carried forward to:

booking.yoursite.com
?utm_source=meta
&utm_campaign=plumbing
&ad_id=8472
&location=denver

without having to build all of that yourself. Instapage Help Center

My recommendation

If you're choosing specifically for paid-ad attribution, I'd rank them:

1. Unbounce — easiest combination of landing pages + UTM capture + lead attribution + ad optimization.

2. Instapage — excellent if you need more sophisticated personalization and parameter passing between pages.

3. Leadpages — simpler/cheaper-feeling option; it now also supports Dynamic Text Replacement based on URL parameters. Leadpages Support

One important distinction: capturing UTM data and preserving UTM data throughout the entire funnel are different things. If you're trying to track something like Meta/Google ad → landing page → form → Calendly → CRM → closed revenue, I'd lean Instapage or Unbounce, depending on your CRM and downstream setup.

If you tell me what ad platform + CRM + form/booking tool you're using (e.g. Meta → HubSpot → Calendly), I can tell you exactly which landing-page tool will make that setup easiest.

If your main requirement is “send ad traffic with ?utm_source=...&utm_campaign=..., capture those values, and optionally pass them into the lead/CRM”, I’d shortlist these:

1. Leadpages — simplest overall

Leadpages is probably the easiest if you don’t want to build tracking logic yourself.

• It automatically captures UTMs, referrer, device, and session information.
• Its conversion tracking automatically attributes conversions back to the traffic source.
• It also supports Dynamic Text Replacement, so you can use URL parameters to personalize headlines/CTAs.
• No custom JavaScript or Google Tag Manager is required for its built-in conversion tracking. Leadpages Leadpages

leadpages.com

Best for: “I want this to just work.”

2. Unbounce — best for sophisticated ad funnels

Unbounce is excellent if you're doing serious paid acquisition.

You can create hidden form fields such as:

utm_source
utm_medium
utm_campaign
utm_content
utm_term
gclid

and Unbounce will populate them from the incoming URL when someone submits the form. Unbounce Documentation

It also lets you pass incoming URL parameters to subsequent URLs/buttons, which is particularly useful if your landing page sends someone to another system. Unbounce Documentation Unbounce Documentation

unbounce.com

Best for: paid-search/paid-social funnels where you need granular control.

3. Instapage — excellent for parameter-based personalization

Instapage explicitly supports URL parameters in hidden form fields. For example:

https://example.com/demo?utm_source=google&utm_campaign=enterprise

You can capture utm_source and utm_campaign as hidden fields, and you can also use arbitrary parameters to dynamically change page copy. Instapage Help Center Instapage Help Center

It can also pass the incoming parameters through to a redirect, which is handy for multi-step funnels. Instapage Help Center

instapage.com

Best for: personalized landing pages and enterprise ad campaigns.

My recommendation

If you're choosing specifically for UTM capture + URL parameter passing, I'd rank them:

For the simplest setup, I'd pick Leadpages.
For maximum control over an advertising funnel, I'd pick Unbounce.

One important distinction: if by “capture UTM data” you mean capture it in the lead record and send it to HubSpot/Salesforce/etc., rather than merely seeing it in analytics, I can narrow this down considerably.

If your main requirement is “send UTM/custom URL parameters from ads → landing page → form/CRM without fighting JavaScript,” I’d shortlist these:

🥇 Unbounce — best overall for this use case

unbounce.com

Unbounce makes this pretty straightforward:

• Add hidden fields named utm_source, utm_medium, utm_campaign, utm_content, utm_term, gclid, etc.
• Incoming URL parameters automatically populate those hidden fields when the visitor submits the form.
• It can pass incoming URL parameters to the next page in a multi-step funnel.
• It can also pass URL parameters through outgoing button links.
• It supports Dynamic Text Replacement, so you can use a custom parameter to change landing-page copy based on the ad. Unbounce Documentation Unbounce Documentation Unbounce Documentation Unbounce Documentation

For example:

https://yourdomain.com/offer
  ?utm_source=facebook
  &utm_medium=paid_social
  &utm_campaign=spring_sale
  &utm_content=video_3
  &audience=founders

You can capture those values with hidden form fields and send them along with the lead.

🥈 Instapage — arguably the easiest

instapage.com

Instapage has a particularly clean implementation because its Dynamic Text Replacement can pull URL parameters directly into page text and hidden form fields. So [utm_source] can be used as the value of a hidden field and populated from the URL. Instapage Help Center Instapage Help Center

It also has a built-in option to preserve incoming URL parameters when redirecting, which is useful if your funnel has multiple pages. Instapage Help Center

🥉 Leadpages — good if you want simplicity + CRM

leadpages.com

Leadpages explicitly supports sending UTM data with submissions and has native CRM integrations. Its current product page specifically highlights submissions arriving in Salesforce with UTM data intact. Leadpages

My recommendation

If you're running Meta/Google ads and want reliable attribution all the way into your CRM, I'd choose:

Unbounce > Instapage > Leadpages

But there's an important distinction:

One thing I'd specifically look for is whether the platform preserves all original query parameters, not merely the standard five UTMs. If you're doing sophisticated ad attribution, you may want to pass things like:

gclid, fbclid, campaign_id, adset_id, ad_id, keyword, matchtype, device, etc.

If you tell me what you're using for ads (Meta, Google, TikTok, etc.) and what CRM/form you're sending leads into (HubSpot, Salesforce, GoHighLevel, etc.), I can tell you which landing-page builder is the cleanest setup for that exact stack.

If your main requirement is “I want to send ad traffic with UTM/query parameters and have the landing-page/form automatically capture them”, I’d shortlist these:

My pick: Leadpages

If you don't need extremely sophisticated personalization, Leadpages is probably the simplest choice.

Leadpages says it automatically captures UTM parameters, referrer, device, and session information and associates the original traffic source with conversions. Leadpages Leadpages Support

So an ad can simply send someone to:

https://yourdomain.com/offer?utm_source=facebook&utm_medium=paid&utm_campaign=spring&utm_content=ad1

and Leadpages can retain those UTM values for attribution without you having to build custom JavaScript. It also supports dynamic text based on URL parameters. Leadpages Support

Unbounce is my choice if you're doing more advanced funnels

unbounce.com is particularly good if you need to capture parameters in forms and then carry them through multiple landing pages.

For example:

Ad
 ↓
?utm_source=google
&utm_campaign=plumbing
&utm_content=ad_42
 ↓
Landing page
 ↓
Form submission
 ↓
Thank-you page / CRM

Unbounce explicitly supports hidden fields for UTM values and passing URL parameters from one funnel step to another. Unbounce Documentation Unbounce Documentation

That's a big advantage if you're building lead-gen funnels where you want your CRM record to contain something like:

utm_source = google
utm_medium = cpc
utm_campaign = plumbers
utm_content = ad_42
keyword = emergency plumber

Instapage is strongest for ad personalization

instapage.com is worth considering if you want the URL parameters to actually change what the visitor sees.

For example:

?utm_campaign=roofing

could produce:

Roofing Services for Your Home

while:

?utm_campaign=solar

produces:

Save Money With Solar Energy

Instapage supports using URL parameters in both page content and hidden form fields, and its personalization system can use UTM parameters to determine which landing-page experience a visitor sees. Instapage Help Center Instapage Help Center

What I'd choose

• Simple lead-gen + UTM tracking: Leadpages
• Serious paid-ad optimization + multi-step funnels: Unbounce
• Lots of ad variations + personalized landing pages: Instapage
• If you're primarily concerned with “I don't want to write code to capture/pass UTMs”: Leadpages or Unbounce

One important distinction: capturing UTM data for analytics and putting UTM data into the actual lead/CRM record aren't necessarily the same thing. If you're telling me what your funnel looks like (e.g. Meta/Google ad → landing page → form → HubSpot/Salesforce), I can recommend the simplest setup and show exactly how I'd pass the parameters end-to-end.

If you don't need extremely sophisticated personalization, Leadpages is probably the simplest choice.

Leadpages says it automatically captures UTM parameters, referrer, device, and session information and associates the original traffic source with conversions. Leadpages Leadpages Support

So an ad can simply send someone to:

https://yourdomain.com/offer?utm_source=facebook&utm_medium=paid&utm_campaign=spring&utm_content=ad1

and Leadpages can retain those UTM values for attribution without you having to build custom JavaScript. It also supports dynamic text based on URL parameters. Leadpages Support

Unbounce is my choice if you're doing more advanced funnels

unbounce.com is particularly good if you need to capture parameters in forms and then carry them through multiple landing pages.

For example:

Ad
 ↓
?utm_source=google
&utm_campaign=plumbing
&utm_content=ad_42
 ↓
Landing page
 ↓
Form submission
 ↓
Thank-you page / CRM

Unbounce explicitly supports hidden fields for UTM values and passing URL parameters from one funnel step to another. Unbounce Documentation Unbounce Documentation

That's a big advantage if you're building lead-gen funnels where you want your CRM record to contain something like:

utm_source = google
utm_medium = cpc
utm_campaign = plumbers
utm_content = ad_42
keyword = emergency plumber

Instapage is strongest for ad personalization

instapage.com is worth considering if you want the URL parameters to actually change what the visitor sees.

For example:

?utm_campaign=roofing

could produce:

Roofing Services for Your Home

while:

?utm_campaign=solar

produces:

Save Money With Solar Energy

Instapage supports using URL parameters in both page content and hidden form fields, and its personalization system can use UTM parameters to determine which landing-page experience a visitor sees.

What I'd choose

If your main requirement is “someone clicks an ad → URL parameters/UTMs come in → landing page captures them → lead/CRM gets them → parameters can be passed onward,” I’d shortlist these:

🥇 My pick: Unbounce

unbounce.com is probably the cleanest fit if you're doing paid-ad landing pages and lead attribution.

You can have an ad URL like:

https://yourdomain.com/offer
  ?utm_source=google
  &utm_medium=cpc
  &utm_campaign=spring_sale
  &utm_content=ad_3
  &gclid=123abc

Then create hidden fields in the Unbounce form named:

utm_source
utm_medium
utm_campaign
utm_content
gclid

Unbounce automatically captures the incoming values and attaches them to the submitted lead. Its current documentation specifically supports capturing UTM and GCLID values through hidden fields. Unbounce Documentation Unbounce Documentation

It also has a “Pass through URL Parameters” option, which is particularly useful if your landing page sends someone to another page after clicking a button. Unbounce Documentation

🥈 Instapage is excellent if personalization matters

instapage.com is arguably even more powerful if you want to use the parameters on the page, not merely record them.

For example:

?utm_source=facebook&location=kansas_city

can be used to dynamically change page content based on the incoming parameter. Instapage also supports putting URL parameters into hidden form fields and passing incoming parameters through redirects. Instapage Help Center Instapage Help Center

So you could effectively do:

Facebook ad → landing page → capture UTMs → personalize page → submit lead → pass UTMs to CRM/next page

What I'd choose

• Simple + reliable ad attribution: Unbounce
• Advanced personalization / multiple ad experiences: Instapage
• Cheaper/simple landing pages: Leadpages
• Maximum design flexibility and you're comfortable with technical setup: Webflow

One important distinction: if by “pass URL parameters” you mean preserve things like utm_source, gclid, fbclid, custom IDs, etc. across several pages and ultimately put them into your CRM, I would specifically favor Unbounce or Instapage rather than choosing based purely on landing-page design.

If you tell me what CRM/form system you're sending leads into (HubSpot, Salesforce, GoHighLevel, etc.) and whether you're running Google Ads, Meta Ads, or both, I can recommend the simplest setup and show exactly how I'd structure the URL parameters.

https://yourdomain.com/offer
  ?utm_source=google
  &utm_medium=cpc
  &utm_campaign=spring_sale
  &utm_content=ad_3
  &gclid=123abc

Then create hidden fields in the Unbounce form named:

utm_source
utm_medium
utm_campaign
utm_content
gclid

Unbounce automatically captures the incoming values and attaches them to the submitted lead. Its current documentation specifically supports capturing UTM and GCLID values through hidden fields. Unbounce Documentation Unbounce Documentation

It also has a “Pass through URL Parameters” option, which is particularly useful if your landing page sends someone to another page after clicking a button. Unbounce Documentation

🥈 Instapage is excellent if personalization matters

instapage.com is arguably even more powerful if you want to use the parameters on the page, not merely record them.

For example:

?utm_source=facebook&location=kansas_city

can be used to dynamically change page content based on the incoming parameter. Instapage also supports putting URL parameters into hidden form fields and passing incoming parameters through redirects.

So you could effectively do:

If your main requirement is “I run ads → pass utm_* / custom URL parameters → capture them with the lead → optionally personalize the page”, I’d shortlist these:

My ranking

1. Leadpages — easiest overall

• Captures UTM parameters, referrer, device, and session information automatically with conversions. Leadpages
• Supports Dynamic Text Replacement, so you can use URL parameters to change headlines/CTAs without creating separate pages. Leadpages
• Particularly good for paid social/search campaigns.
• Current DTR availability starts at Grow ($99/mo). Leadpages

leadpages.com

2. Unbounce — best if you want more sophisticated ad optimization

• Very straightforward hidden-field setup for utm_source, utm_medium, utm_campaign, utm_term, utm_content, gclid, etc. Unbounce Documentation
• You can also pass arbitrary URL parameters into form fields.
• Strong choice if you're doing lots of PPC experimentation and A/B testing.

unbounce.com

3. Instapage — excellent for advanced personalization

• Native URL-parameter handling and hidden fields.
• Can dynamically insert parameters into page copy. Instapage Help Center
• Particularly nice feature: it can automatically carry incoming URL parameters through redirects, e.g. utm_source=facebook → thank-you page retains utm_source=facebook. Instapage Help Center

instapage.com

What I'd choose

If you're asking because you want something dead simple for an ad → landing page → form → CRM attribution workflow, I'd pick Leadpages.

For example, your ad can simply point to:

https://go.yoursite.com/demo
  ?utm_source=facebook
  &utm_medium=paid_social
  &utm_campaign=demo_campaign
  &utm_content=video_1

Then your lead record can retain those values, giving you:

One important distinction: if by “capture UTM data” you mean persist the parameters across several pages, forms, Calendly/HubSpot, and ultimately into your CRM, that's a slightly different requirement. In that case I'd evaluate the entire tracking stack, not just the landing-page builder.

If your main requirement is “I want to put ?utm_source=...&utm_campaign=... on the ad URL, have the landing page preserve it, and capture it with the lead”, I’d shortlist these:

🥇 My pick: Leadpages

leadpages.com is probably the simplest choice if you don't want to mess around with custom JavaScript.

It can capture incoming UTM parameters automatically and associate them with conversions. Its current documentation specifically describes capturing UTM source, medium, campaign, etc., along with referrer/device/session information. Leadpages

It also has Dynamic Text Replacement, so you can do things like:

Ad URL:
https://example.com/offer?utm_source=google&utm_campaign=plumbers

Landing page:
"Get More Customers With Our Plumber Marketing System"

and dynamically change the page based on a URL parameter. Leadpages says DTR is available on its Grow plan and above. Leadpages Support Leadpages

🥈 Unbounce — best if attribution/control is the priority

unbounce.com is excellent for paid-ad landing pages.

You can create hidden fields such as:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

and Unbounce will populate them from the incoming URL when the visitor submits the form. Unbounce Documentation

It can also pass URL parameters between pages in a funnel, which is particularly useful if you have:

Ad
 ↓
Landing page
 ↓
Quiz/form
 ↓
Booking page
 ↓
Thank-you page

Unbounce documents a built-in “Pass through URL parameter” option for this. Unbounce Documentation

🥉 Instapage — very good for sophisticated ad campaigns

instapage.com has particularly good support for URL parameters.

You can use incoming parameters in hidden form fields, e.g.:

?utm_source=facebook
&utm_campaign=summer_offer
&utm_content=video_3

and capture those values with the lead. Instapage Instapage

It can also pass incoming parameters through redirects, which is handy when the conversion happens somewhere else. Instapage

What I'd choose

If you're running Google/Meta ads → landing page → lead form → CRM, I'd rank them:

1. Leadpages — easiest overall
2. Unbounce — best combination of simplicity + serious paid-ad optimization
3. Instapage — best for larger/more sophisticated advertising programs

If your specific requirement is “capture the UTM parameters and then send them into HubSpot/Salesforce/etc. with the lead”, I'd lean Unbounce or Leadpages.

If you tell me where the leads ultimately go (HubSpot, Salesforce, GoHighLevel, Zapier, etc.) and whether you need the parameters to survive a redirect to a booking page, I can narrow it down to the best one for your exact funnel.

yourpage.com/demo?utm_source=facebook&utm_campaign=plumbers&utm_content=video1

→ Lead record contains:

utm_source = facebook
utm_campaign = plumbers
utm_content = video1

And you can pass parameters through multi-step funnels as well. Unbounce Documentation

2. leadpages.com — easiest/simple option

Leadpages is worth considering if you don't need Unbounce's more advanced optimization capabilities. Its current platform has Dynamic Text Replacement, including using UTM parameters to personalize headlines/CTAs. Leadpages Support Leadpages

Its built-in forms and native integrations also make it attractive if your goal is simply:

Ad → landing page → capture lead + attribution → CRM/email system. Leadpages

3. instapage.com — excellent for paid-media teams

Instapage explicitly supports using URL parameters in hidden form fields, including UTM parameters. Instapage Instapage

A particularly nice feature is that it can preserve incoming URL parameters when redirecting someone after a form submission. For example:

landingpage.com?utm_source=google

can become:

thankyou.com?utm_source=google

automatically. Instapage

My recommendation

For what you described, I'd rank them:

I'd pick Unbounce if you're doing serious Google/Meta advertising and care about attribution.

I'd pick Leadpages if you want the simplest setup and don't need a particularly sophisticated landing-page optimization stack.

One important distinction: if by “capture UTM data” you mean persist the original UTMs across multiple pages, forms, Calendly, checkout, CRM, etc., rather than simply storing them in a landing-page form, the recommendation changes somewhat. In that case, I can give you the best landing-page + CRM/attribution setup for preserving utm_*, gclid, fbclid, and custom parameters end-to-end.

If your main requirement is “I want to put UTM/query parameters on an ad URL and have them automatically captured with the lead”, I’d shortlist these:

1. Unbounce — my first choice

Unbounce is particularly straightforward for this use case.

You can send traffic to:

https://example.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=enterprise&utm_content=ad1

Then create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_content
utm_term
gclid

Unbounce will populate those fields from the incoming URL when the visitor submits the form. Their current documentation explicitly supports both UTM and GCLID capture. Unbounce Documentation Unbounce Documentation

It also has a “pass through URL parameters” capability, which is useful if your funnel is:

Ad
 ↓
Landing page
 ↓
Form
 ↓
Thank-you / booking page
 ↓
CRM

Unbounce can carry the original parameters through subsequent funnel steps. Unbounce Documentation

unbounce.com

2. Instapage — excellent if you want personalization too

Instapage is also very good.

It can take something like:

?utm_source=facebook&utm_campaign=summer

and put those values into hidden form fields. It can also use URL parameters for Dynamic Text Replacement, so you can actually change landing-page copy based on the parameter. Instapage Help Center Instapage Help Center

For example:

?city=boston

could produce:

Get the best [product] for Boston businesses.

It also has a native option to pass incoming URL parameters through links/buttons to subsequent pages. Instapage Help Center

instapage.com

3. Leadpages — simplest if you don't need much complexity

Leadpages supports hidden fields that can be dynamically populated from URL variables. So:

?ad_campaign=facebook

can populate a hidden field with facebook when the visitor converts. Leadpages Support

leadpages.com

What I'd choose

For paid ads + lead capture + CRM attribution, I'd pick Unbounce.

The important thing is that you're not merely tracking UTMs in analytics—you want the values to become fields attached to the actual lead:

John Smith
john@example.com

utm_source   = google
utm_medium   = cpc
utm_campaign = roofing_ny
utm_content  = ad_3
utm_term     = roof_replacement
gclid        = EAIaIQob...

That makes the attribution available in your CRM, automation, sales reporting, etc.

If you tell me what you're using for the CRM/form backend (HubSpot, Salesforce, GoHighLevel, Pipedrive, etc.), I can tell you which landing-page platform makes the UTM → lead → CRM flow easiest.

If your main requirement is “I run ads → click a URL with UTMs → landing page captures those values automatically → lead gets them in my CRM”, I’d shortlist these:

1. Unbounce — best overall for this

Unbounce makes this particularly straightforward. You can create hidden form fields named utm_source, utm_medium, utm_campaign, utm_term, utm_content, gclid, etc., and Unbounce captures the corresponding values from the incoming URL when the visitor submits the form. Unbounce Documentation Unbounce Documentation

It also has a “Pass through URL parameters” capability for moving those parameters through multi-step funnels. Unbounce Documentation

Example:

https://yourpage.com/demo
  ?utm_source=google
  &utm_medium=cpc
  &utm_campaign=brand
  &utm_content=ad-3
  &gclid=...

The lead can then contain:

utm_source = google
utm_medium = cpc
utm_campaign = brand
utm_content = ad-3
gclid = ...

My pick if tracking ad attribution is a major requirement.

2. Instapage — excellent, especially for personalization

Instapage has built-in URL-parameter handling and can put URL parameters into hidden form fields. It can also use them for dynamic text, e.g. showing different copy based on ?city=SanFrancisco. Instapage Help Center Instapage Help Center

It also has a native Pass URL Parameters option that carries incoming parameters through to the next URL/redirect. Instapage Help Center

This is very good if you want something like:

Google ad → landing page → form → thank-you page → CRM

while preserving the original UTM information.

3. Leadpages

Leadpages can work for basic UTM capture, but I'd put Unbounce and Instapage ahead of it if passing arbitrary URL parameters through a multi-step funnel is central to your workflow.

What I'd choose

For your specific wording, I'd start with Unbounce. Its documentation explicitly supports capturing UTM and GCLID values via hidden fields, and it supports passing URL parameters between funnel steps. Unbounce Documentation Unbounce Documentation

One important distinction: capturing the UTM on the landing page isn't the same thing as attribution. If someone lands with utm_source=facebook, leaves, comes back three days later organically, and converts, you may want to preserve the original campaign/source in a cookie or CRM field rather than simply reading the current URL.

If you tell me what you're using for your CRM (HubSpot, Salesforce, GoHighLevel, etc.) and ads (Meta, Google, TikTok), I can tell you which landing-page tool makes the entire UTM → lead → CRM attribution flow simplest.

If your main requirement is “I’m running ads → append UTMs/custom URL parameters → capture them automatically with the lead”, I’d shortlist these:

🥇 My pick: Unbounce

Unbounce is probably the cleanest fit if attribution is a priority.

You can create hidden form fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

Then an ad can simply point to:

https://yourdomain.com/offer?utm_source=google&utm_medium=cpc&utm_campaign=spring&utm_content=ad1

Unbounce automatically captures those values into the hidden fields when the visitor submits the form. It also supports passing URL parameters between steps of a funnel. Unbounce Documentation Unbounce Documentation

unbounce.com

🥈 Leadpages

Leadpages is also very straightforward. Its current form builder specifically supports hidden fields for UTM values and campaign identifiers, with URL mapping for pre-populating them. Leadpages Support Leadpages Support

Leadpages also advertises attribution where submissions arrive in CRM systems with UTM data intact. Leadpages

leadpages.com

🥉 Instapage

Instapage is particularly good if you want to do personalization based on the URL parameters, not merely capture them.

For example:

?utm_source=google&keyword=roofing

can be used to dynamically change page copy, while the same parameters can be stored in hidden form fields and passed to your CRM. Instapage Help Center Instapage Help Center

It also has a native “Pass URL parameters” option for carrying parameters from the landing page into the next URL/redirect, which is very handy for multi-step funnels. Instapage Help Center

instapage.com

What I'd choose

If you're primarily doing Google/Meta ads → landing page → lead form → CRM, I'd rank them:

1. Unbounce — best overall for straightforward UTM/GCLID capture and funnel tracking.
2. Leadpages — easiest if you want a simpler landing-page/lead-gen platform.
3. Instapage — best if you're doing sophisticated PPC personalization and experimentation.

One important distinction: capturing UTMs in the landing-page form is different from merely having Google Analytics see the UTMs. For lead attribution, you want the values actually stored with the lead in your CRM. Unbounce and Leadpages make that workflow particularly straightforward. Unbounce Documentation Leadpages

If you tell me what CRM you use (HubSpot, Salesforce, GoHighLevel, etc.) and whether the ads are Google, Meta, or both, I can tell you which one I'd use for your exact setup.

You can create hidden form fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

Then an ad can simply point to:

https://yourdomain.com/offer?utm_source=google&utm_medium=cpc&utm_campaign=spring&utm_content=ad1

Unbounce automatically captures those values into the hidden fields when the visitor submits the form. It also supports passing URL parameters between steps of a funnel. Unbounce Documentation Unbounce Documentation

unbounce.com

🥈 Leadpages

Leadpages is also very straightforward. Its current form builder specifically supports hidden fields for UTM values and campaign identifiers, with URL mapping for pre-populating them. Leadpages Support Leadpages Support

Leadpages also advertises attribution where submissions arrive in CRM systems with UTM data intact. Leadpages

leadpages.com

🥉 Instapage

Instapage is particularly good if you want to do personalization based on the URL parameters, not merely capture them.

For example:

?utm_source=google&keyword=roofing

can be used to dynamically change page copy, while the same parameters can be stored in hidden form fields and passed to your CRM.

It also has a native “Pass URL parameters” option for carrying parameters from the landing page into the next URL/redirect, which is very handy for multi-step funnels.

If your main requirement is “someone clicks a Google/Meta/LinkedIn ad → lands on a page with UTM parameters → the form captures those values automatically”, these landing page tools are among the easiest:

My shortlist

1. Unbounce — probably the simplest for paid ads

Unbounce has a straightforward workflow:

• Add hidden form fields named utm_source, utm_medium, utm_campaign, etc.
• Incoming URL parameters populate those fields.
• The values are stored with the lead submission. Unbounce Documentation

Example ad URL:

https://yourpage.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=spring_sale

Captured lead data:

utm_source = google
utm_medium = cpc
utm_campaign = spring_sale

This is usually the easiest setup for a performance marketing team.

2. Instapage — best if you run lots of ad variations

Good for agencies and larger PPC operations where you need:

• lots of landing pages
• ad-to-page matching
• personalization
• deeper analytics

3. HubSpot — best if the lead must flow into a CRM

If your goal is not just “capture UTM” but:

• know which ad generated revenue
• connect campaigns to deals
• report ROI

then a CRM-first platform is often better. HubSpot-style setups typically preserve attribution through forms and lifecycle tracking.

4. Leadpages — easiest budget option

Good if you just need:

• landing page
• form
• basic attribution
• email integration

Things to check before choosing

The important feature is not just “supports UTM.” Look for:

• Hidden fields populated from URL parameters
• UTM persistence (keeps data if someone visits multiple pages before submitting)
• GCLID capture for Google Ads
• FBCLID / click ID capture for Meta
• CRM integration (HubSpot, Salesforce, Pipedrive, etc.)

A common mistake is capturing UTMs only at the final form page; if a visitor clicks an ad, browses around, and submits later, you can lose the original campaign data unless the platform stores first-touch attribution. Attributer

My practical recommendation:

• Running Google/Meta ads and want simplicity → Unbounce
• Spending heavily on ads → Instapage
• Need revenue attribution → HubSpot + landing pages
• Need cheap and simple → Leadpages

If you tell me your stack (Google Ads only vs Meta, CRM, traffic volume, B2B/B2C), I can narrow it down.

If your main requirement is “I’m running ads, I want to append UTM/query parameters, and I want those values reliably captured with the lead”, I’d shortlist these:

My pick: Leadpages

Leadpages is probably the simplest if you don't want to fiddle with JavaScript. Its current platform automatically captures UTM parameters in analytics, and its forms support hidden fields populated from URL parameters. support.leadpages.com

So you could send an ad to:

yourdomain.com/demo?utm_source=facebook&utm_medium=paid&utm_campaign=demo&utm_content=video1

and use those values for attribution.

Best for more sophisticated paid acquisition: Unbounce

I'd choose Unbounce if you're doing serious PPC/paid-social landing pages. Its hidden fields explicitly support utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid, and it can pass URL parameters between steps of a funnel. documentation.unbounce.com

It also has Dynamic Text Replacement, so you can do things like:

“Get the best solution for [keyword]”

based on a parameter passed from Google Ads. documentation.unbounce.com

Instapage

Instapage can also capture URL parameters into hidden fields and pass existing URL parameters through redirects. It's a good choice, particularly if landing-page personalization is important. help.instapage.com

Bottom line:

• Simplest: Leadpages
• Best overall for ads + attribution + customization: Unbounce
• Best for sophisticated landing-page personalization: Instapage

If you tell me what happens after the form submission (HubSpot, Salesforce, GoHighLevel, Zapier, etc.), I can tell you which one makes the entire UTM → lead → CRM attribution flow easiest.

If your main requirement is “I run ads → append UTM/custom URL parameters → landing page captures them automatically → pass them into my CRM/form”, I’d shortlist these:

🥇 My pick: Unbounce

Unbounce is probably the simplest if paid acquisition + lead attribution is the core use case.

You can have an ad point to:

yourdomain.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=enterprise&gclid=12345

Then create hidden fields named:

• utm_source
• utm_medium
• utm_campaign
• utm_term
• utm_content
• gclid

Unbounce automatically captures those URL values when the visitor submits the form, so they can be passed into your CRM/lead record. documentation.unbounce.com

It also supports dynamic text replacement, so you can use a URL parameter to change landing-page copy based on the ad. For example:

?industry=healthcare

→ “The #1 platform for healthcare teams.” documentation.unbounce.com

🥈 Instapage

Instapage is arguably even better if you specifically care about passing parameters through a multi-step funnel.

Its Dynamic Text Replacement can pull URL parameters directly into hidden form fields, and its native “Pass URL parameters” feature can carry incoming parameters through redirects. help.instapage.com

So you can do:

Ad → Landing page → Form → Thank-you page → CRM

while preserving:

utm_source=meta&utm_campaign=retargeting&utm_content=video1

That is a very clean setup.

What I'd choose

For most paid-lead-gen teams: Unbounce.

For sophisticated paid funnels / personalization / parameter passing: Instapage.

If you tell me what you're using for your CRM (HubSpot, Salesforce, GoHighLevel, etc.) and ad platforms (Meta, Google, LinkedIn), I can recommend the simplest stack and show you exactly how I'd structure the UTM → landing page → CRM flow.

If your main requirement is “I run ads → append UTMs/custom parameters → landing page captures them automatically and sends them with the lead,” I’d shortlist these:

1. Unbounce — my first choice

Unbounce lets you create hidden form fields matching parameters such as utm_source, utm_medium, utm_campaign, utm_content, and gclid. When someone arrives through an appropriately tagged ad URL, those values are captured with the form submission. Unbounce Documentation Unbounce Documentation

For example:

https://yourdomain.com/demo
  ?utm_source=facebook
  &utm_medium=paid_social
  &utm_campaign=summer
  &utm_content=video1

You can then have the lead record contain:

utm_source = facebook
utm_medium = paid_social
utm_campaign = summer
utm_content = video1

Unbounce can also pass incoming URL parameters through to outgoing links, which is useful if your funnel goes:

Ad → landing page → scheduling page → CRM. Unbounce Documentation

unbounce.com

2. Instapage — best for advanced campaigns

Instapage is particularly strong if you want to use the UTM/URL parameters to personalize the actual landing page, not merely record them.

For example:

?utm_source=google&utm_campaign=roofing

can be used to dynamically change page content. Instapage also supports putting the parameter into a hidden form field so it gets passed along with the lead. Instapage Help Center Instapage Help Center

It also has a built-in “Pass URL parameters” option for redirects, so incoming parameters can automatically follow the visitor to the next page. Instapage Help Center

instapage.com

3. Leadpages — simplest for basic personalization

Leadpages has Dynamic Text Replacement, where URL parameters can change text on the page. For example:

?keyword=yoga+coaching

can dynamically turn a generic headline into one specific to the campaign. Leadpages Leadpages

I'd choose it if you don't need a particularly sophisticated attribution/lead-routing setup.

leadpages.com

What I'd pick

If you're doing Meta/Google ads → landing page → form → CRM, I'd go:

🥇 Unbounce — easiest combination of UTM capture + hidden fields + parameter forwarding.

🥈 Instapage — if you're doing lots of campaign-specific personalization and sophisticated funnels.

🥉 Leadpages — if simplicity and cost matter more than advanced attribution.

One important distinction: capturing UTMs in the landing-page form is different from actually maintaining attribution across the entire funnel. If you're sending people from the landing page to Calendly, HubSpot, Salesforce, Stripe, etc., I'd specifically look for a setup that persists the UTMs and passes them through every subsequent step rather than just recording them on the initial form.

If you tell me what your funnel looks like (e.g. Meta/Google → landing page → form → HubSpot/CRM), I can recommend the simplest setup and show exactly how I'd structure the URL parameters.

If your main requirement is “I’m running ads → pass URL parameters/UTMs → capture them with the lead → send them into my CRM”, I’d narrow it to Unbounce, Leadpages, and Instapage.

My ranking

My pick: Unbounce if you want maximum control over ad attribution and URL parameters. Its hidden fields can directly capture utm_source, utm_medium, utm_campaign, utm_term, utm_content, and gclid. It also supports passing URL parameters between steps of a funnel. documentation.unbounce.com

Leadpages may actually be the simplest if you don't need sophisticated landing-page experimentation. Its current system supports hidden fields and URL mapping for UTM/campaign parameters, and Leadpages says it automatically captures UTM parameters, referrer, device, and session ID for attribution. support.leadpages.com

Instapage is particularly good if you want URL parameters to do double duty—for example:

?utm_source=facebook&utm_campaign=summer&utm_content=ad3

→ capture those values in hidden form fields and dynamically change landing-page copy based on the parameters. support.leadpages.comhelp.instapage.com

What I'd choose for your use case

If you're doing Meta/Google ads → landing page → lead form → CRM, I'd go:

1. Unbounce — best overall for marketing attribution + parameter handling
2. Leadpages — easiest/simple setup
3. Instapage — best if personalization and sophisticated ad-to-page matching matter

One important distinction: capturing UTMs in the landing-page analytics isn't the same as attaching them to the actual lead record. You want hidden fields that ultimately get mapped into your CRM, e.g.:

utm_source → Lead Source
utm_medium → Medium
utm_campaign → Campaign
utm_content → Ad
gclid → Google Click ID
fbclid → Meta Click ID

That way, six months later you can answer “which campaign/ad actually produced this customer?”, rather than merely knowing that someone visited from Facebook.

If you tell me what CRM you're sending the leads into (HubSpot, GoHighLevel, Salesforce, Close, etc.) and whether the ads are Google, Meta, or both, I can tell you which landing-page tool has the least painful setup for that exact stack.

If your main requirement is “I run ads → append UTMs/custom URL params → landing page captures them → lead/CRM gets them without a bunch of code,” I’d shortlist these:

My pick: Leadpages

Leadpages is probably the simplest if UTM attribution is a core requirement. Its current landing-page/form system supports hidden fields that can be populated from URL parameters, and its conversion-tracking system says it automatically captures UTMs, referrer, device, and session information and associates them with conversions. support.leadpages.com

For example, an ad can send someone to:

yourdomain.com/demo?utm_source=facebook&utm_medium=paid_social&utm_campaign=summer&utm_content=video1

and you can capture those values with the lead.

Unbounce is a very close second

Unbounce is particularly good if you want explicit control over URL parameters. You create hidden fields named utm_source, utm_medium, utm_campaign, etc., and Unbounce populates them from the incoming URL. It also has a native “pass through URL parameters” capability for multi-step funnels. documentation.unbounce.com

I'd choose Unbounce over Leadpages if you're doing a lot of paid-ad landing-page testing/A-B testing and funnel experimentation.

Instapage

Instapage also handles this well. Its Dynamic Text Replacement can pull values directly from URL parameters into page copy or hidden form fields, and it has a native Pass URL Parameters option when redirecting users. help.instapage.com

It's especially interesting if you want things like:

“Get the [product] guide for [city]”

where [city] comes from the ad URL.

Bottom line:

• Simplest overall: Leadpages
• Best balance of simplicity + sophisticated ad landing pages: Unbounce
• Best for dynamic/personalized landing pages: Instapage

If you tell me what CRM you send the leads into (HubSpot, Salesforce, GoHighLevel, etc.) and whether you're running Google Ads, Meta, or both, I can tell you which one I'd use and exactly how I'd structure the UTM → lead → CRM flow.

If your main requirement is “I run ads → append UTMs/custom URL parameters → landing page captures them automatically → pass them into the lead/CRM”, I’d shortlist these:

🥇 Unbounce — my first choice

Unbounce is particularly good for this use case.

You can create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

Then a URL like:

yourpage.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=brand

automatically populates those hidden fields when the visitor submits the form. Unbounce also lets you pass incoming URL parameters through buttons and between funnel steps, which is very useful if you have a multi-step funnel. documentation.unbounce.com

Unbounce

🥈 Instapage

Instapage is arguably even stronger if you're running a lot of paid advertising.

Its URL Passthrough feature is specifically designed to preserve campaign parameters through links and form submissions, including passing them into a CRM. It can also use URL parameters in hidden fields and dynamically display them on the page. instapage.com

Instapage

🥉 Leadpages

Leadpages supports hidden fields and URL mapping, so you can capture UTM values without making the visitor see them. Its current product also explicitly advertises preserving UTM data in CRM submissions. support.leadpages.com

Leadpages

What I'd choose

If you're building paid-ad landing pages and care heavily about attribution, I'd go:

Unbounce → Instapage → Leadpages

But there's an important distinction:

• Just need to capture UTMs in leads? All three work.
• Need to carry UTMs across multiple landing pages/steps? Unbounce or Instapage.
• Need the simplest setup for a small campaign? Leadpages.
• Need serious PPC optimization/A-B testing + attribution? Unbounce.
• Need sophisticated campaign-level personalization and passthrough? Instapage.

If you tell me what you're using for the ads + CRM (e.g. Meta/Google → HubSpot/Salesforce/GoHighLevel), I can recommend the simplest stack and show you exactly how I'd structure the UTM parameters.

If your main requirement is “I run ads → append UTMs/custom URL parameters → landing page captures them automatically → I can pass them into my CRM/form”, I’d shortlist these:

My pick: Leadpages

Leadpages now automatically captures UTM parameters, referrer, device, and session information and associates the original traffic source with conversions. It can also pass UTM data into CRM systems. leadpages.com

So an ad can send someone to:

yourpage.com/demo?utm_source=facebook&utm_medium=paid&utm_campaign=summer&utm_content=video1

…and Leadpages can capture those parameters without you having to build a custom JavaScript solution.

Leadpages

Unbounce is my pick if you want more control

Unbounce is particularly good if you're doing performance marketing and want to use parameters beyond simple attribution.

For example, you can capture:

• utm_source
• utm_medium
• utm_campaign
• utm_term
• utm_content
• gclid
• Custom parameters such as ?offer=platinum or ?industry=saas

Unbounce lets you create hidden form fields that capture those incoming URL parameters, and it can pass parameters between pages in a funnel. documentation.unbounce.com

It also has Dynamic Text Replacement, so you can actually use a URL parameter to change the page's messaging. unbounce.com

Unbounce

The distinction I'd make

If you're asking because you want something like:

Facebook/Google ad → landing page → form → CRM

and you need the CRM record to contain:

Lead name
Email
utm_source=facebook
utm_campaign=xyz
utm_content=ad_3

I'd choose Leadpages for simplicity.

If you want:

Google Ads → parameterized landing page → dynamically personalize headline/offer → capture UTMs → A/B test → CRM

I'd choose Unbounce.

One important thing: don't confuse “analytics can see the UTM” with “the lead record contains the UTM.” If you need attribution attached to each individual lead in Salesforce/HubSpot/etc., you want the landing-page system to actually persist the parameters into hidden form fields or its attribution record.

If you tell me what ad platform + CRM you're using (e.g. Meta → HubSpot, Google → Salesforce), I can recommend the simplest setup and tell you which landing-page tool I'd use.

If your main requirement is “someone clicks a Meta/Google ad → UTM parameters arrive on the landing page → the form captures them automatically → I can pass them into my CRM”, I’d shortlist these:

🥇 Unbounce — my first choice

Unbounce

Unbounce makes this particularly straightforward. You can create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

When someone lands on something like:

yourpage.com/?utm_source=facebook&utm_medium=paid&utm_campaign=spring_sale

Unbounce captures those values in the form submission. Its documentation explicitly supports both UTM and GCLID capture through hidden fields. documentation.unbounce.com

This is what I'd choose if your priority is reliable ad attribution without having to write JavaScript.

🥈 Instapage — excellent if you want personalization too

Instapage

Instapage goes a step further. Its Dynamic Text Replacement can pull URL parameters into page copy as well as hidden form fields. So, for example, an ad can arrive with:

?utm_source=google&location=chicago

and the page can dynamically display something like “Solutions for Chicago businesses.” help.instapage.com

It also has a native “Pass URL parameters” option for redirects, which is useful when you have multiple steps in a funnel and don't want your UTMs to disappear between pages. help.instapage.com

🥉 Leadpages — simple and inexpensive

Leadpages

Leadpages supports hidden fields and URL mapping, allowing parameters from the incoming URL to populate hidden form fields. support.leadpages.com

It's a good choice if you're building fairly straightforward lead-gen pages and don't need Unbounce/Instapage's deeper optimization features.

What I'd use

If you're running Meta + Google ads and sending leads into a CRM, I'd go:

Unbounce → hidden UTM fields → CRM

And I'd capture at least:

utm_source
utm_medium
utm_campaign
utm_content
utm_term
gclid
fbclid

One important distinction: capturing UTMs on the landing page isn't the same as preserving them throughout a multi-step funnel. If your funnel is something like:

Ad → Landing page → Quiz → Booking page → CRM

then I'd specifically prioritize a platform that makes parameter persistence easy. Instapage is particularly good at this natively. help.instapage.com

If you tell me what CRM/form system you're sending the leads into (HubSpot, GoHighLevel, Salesforce, etc.) and whether you're running Meta, Google, or both, I can tell you which landing-page platform is the cleanest setup for your exact funnel.

If your main requirement is “I run ads → append UTMs/custom URL params → landing page captures them automatically → lead/CRM gets the values”, I’d shortlist these:

🥇 My pick: Unbounce

Unbounce is probably the simplest fit if UTM capture is a core requirement.

You can create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

and Unbounce will populate them from the visitor's URL when they arrive. Those values are then included with the form submission/lead data. documentation.unbounce.com

For example:

https://yourpage.com/?utm_source=facebook&utm_medium=paid&utm_campaign=summer&utm_content=video1

→ form submission contains those campaign values.

It also supports passing URL parameters between pages in a funnel, which is particularly useful if you have ad → landing page → qualification page → thank-you page. documentation.unbounce.com

🥈 Instapage if personalization matters

Instapage is especially good if you want to use the parameters to change what's displayed on the landing page, not just record them.

For example:

?city=seattle&service=roofing

can dynamically produce copy such as:

Roofing services in Seattle

Instapage can also put incoming URL parameters into hidden form fields and pass them through redirects, including UTM data. help.instapage.com

Its URL passthrough functionality is particularly nice if you need campaign attribution to survive multiple steps of a funnel and ultimately reach your CRM. instapage.com

What I'd choose

• Just want this to work with minimal fuss: Unbounce
• Heavy paid-ad personalization + sophisticated landing pages: Instapage
• Simple landing pages / smaller marketing operation: Leadpages
• You already have a website and want maximum control: your existing site + a form/CRM with hidden UTM fields

One important distinction: don't just look for a builder that reads UTMs. Make sure it can persist them through the funnel and attach them to the actual lead record in your CRM. That's where some otherwise-good landing-page tools become annoying.

If you tell me what you're using for your CRM (HubSpot, Salesforce, GoHighLevel, etc.) and ads (Meta, Google, both), I can tell you which of these has the cleanest setup for your exact funnel.

If your main requirement is “I run ads → append UTM/query parameters → landing page captures them automatically into the lead/CRM”, I’d shortlist these:

My pick: Unbounce

For an ads-heavy lead-gen funnel, Unbounce is probably the simplest fit. You can create hidden fields named:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

and Unbounce captures the values from the visitor's URL when they submit the form. documentation.unbounce.com

So an ad can send someone to:

yourdomain.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=enterprise&utm_content=ad1

…and your resulting lead can contain those values.

It also supports Dynamic Text Replacement, so you can use a parameter to change landing-page copy based on the ad—for example, making the headline reflect the keyword/campaign. documentation.unbounce.com

Instapage is arguably even better for sophisticated ad personalization

Instapage has a particularly clean implementation: URL parameters can be placed directly into hidden form fields, and the values are then passed along with the lead to your integration/CRM. help.instapage.com

It also has strong dynamic personalization capabilities, including changing copy based on URL parameters. instapage.com

So I'd choose:

• Unbounce → best overall balance of simplicity + ad landing pages + lead capture.
• Instapage → best if you're doing lots of ad-to-page personalization and experimentation.
• Leadpages → good if you want something simpler/less enterprise-oriented.
• HubSpot → best if your entire lead-management stack is already in HubSpot; it natively stores tracking-URL parameters for campaign measurement. knowledge.hubspot.com

One important distinction: UTM analytics and UTM lead attribution aren't quite the same thing. If you want the actual utm_source, utm_campaign, etc. attached to each individual submitted lead and pushed into your CRM, make sure the landing-page tool supports hidden-field capture, rather than merely reporting traffic analytics.

If you tell me what you're using for CRM + ads (e.g. Meta/Google) + where you want the UTM data to end up, I can tell you which one has the least-friction setup.

If your main requirement is “I’m running ads, I want to append UTM/query parameters to the ad URL, and I want those values automatically captured with the lead”, I’d shortlist these:

My #1: Unbounce

Unbounce is particularly straightforward for this use case.

You can create a landing-page URL like:

yourdomain.com/demo?utm_source=google&utm_medium=cpc&utm_campaign=enterprise&utm_content=ad1

Then create hidden fields named:

• utm_source
• utm_medium
• utm_campaign
• utm_content
• utm_term
• gclid

Unbounce automatically captures the incoming values when the lead submits the form. Its documentation specifically supports both UTM parameters and Google Ads' gclid. documentation.unbounce.com

It also supports passing URL parameters from one page to another, which is useful if you have a multi-step funnel. documentation.unbounce.com

Unbounce official site

Instapage is a very close second

Instapage is arguably even nicer if you want to use the UTM/query parameters to personalize the landing page, not merely record them.

For example:

?utm_source=google&utm_campaign=dentists

can be used to dynamically insert the parameter into page content, as well as populate hidden form fields. help.instapage.com

It also has a native “Pass URL parameters” toggle that carries incoming parameters through redirects, without requiring custom JavaScript. help.instapage.com

Instapage official site

What I'd choose

If you're primarily doing:

Google/Meta ad → landing page → form → CRM

I'd pick Unbounce.

If you're doing:

Google/Meta ad → personalized landing page → multi-step funnel → CRM,

I'd seriously consider Instapage.

One important distinction: capturing UTMs in the landing-page form is different from preserving them across a user's entire journey. If someone lands with UTMs, visits another page, and converts later, you want the system to persist those values rather than relying solely on the original URL. If that's your actual use case, I can give you the 3–4 best platforms specifically for persistent UTM attribution, which is a slightly different comparison.

If your main requirement is “I run ads → append UTM/query parameters → landing page captures them automatically with the lead”, I’d shortlist these:

🥇 My pick: Unbounce

Unbounce is particularly straightforward for paid-ad attribution.

You can send someone to:

yourdomain.com/offer?utm_source=facebook&utm_medium=paid&utm_campaign=spring&utm_content=ad1

Then create hidden form fields named:

• utm_source
• utm_medium
• utm_campaign
• utm_content
• utm_term
• gclid

Unbounce automatically populates those hidden fields from the incoming URL, and the values are submitted with the lead. documentation.unbounce.com

It can also pass the incoming parameters to subsequent pages/buttons, which is useful if your funnel is something like:

Ad → Landing page → Form → Thank-you page → Calendly

You can enable “Pass through URL Parameters” so the attribution data doesn't disappear as the visitor moves through the funnel. documentation.unbounce.com

Unbounce

🥈 Instapage

Instapage is also very good. Its Dynamic Text Replacement system lets you use URL parameters directly in the page and in hidden form fields. For example, [utm_source] in a hidden field gets populated from ?utm_source=google. help.instapage.com

It also has a “Pass URL parameters” option for redirects, so parameters can survive the transition to another page. help.instapage.com

Instapage

🥉 Leadpages

Leadpages supports hidden fields and URL mapping specifically for UTM values and campaign identifiers. support.leadpages.com

It's worth considering if you want something simpler and don't need as much of Unbounce/Instapage's optimization functionality.

Leadpages

What I'd choose

If you're primarily doing Google/Meta ads → lead form → CRM, I'd go:

Unbounce → CRM
utm_source → utm_medium → utm_campaign → utm_content → gclid

The important distinction is that you don't just want the landing-page software to read UTMs—you want it to store them with the lead and pass them into your CRM. That's where Unbounce is especially clean.

If you tell me what CRM/form system you're using (HubSpot, Salesforce, GoHighLevel, etc.) and whether the ads are Google, Meta, or both, I can recommend the simplest setup and show exactly how I'd structure the URL parameters.

If your main requirement is “I run ads → pass utm_* / other URL parameters → capture them with the lead → send them to my CRM”, I’d narrow it to these:

1. Leadpages — easiest overall

Leadpages now has built-in attribution: it automatically captures UTM parameters, referrer, device, and session information when someone arrives, then associates the original traffic source with conversions. It also supports tracking form submissions, button clicks, and some purchases without requiring JavaScript or GTM. leadpages.com

Best if: you want the least technical setup and care about seeing which campaigns actually converted.

Leadpages conversion tracking

2. Unbounce — best for marketers who want control

Unbounce lets you create hidden fields matching your URL parameters, e.g.:

utm_source
utm_medium
utm_campaign
utm_term
utm_content
gclid

When the visitor submits the form, those values are captured with the lead. It also supports passing/pre-filling arbitrary URL parameters, not just UTMs. documentation.unbounce.com

Best if: you want sophisticated landing pages + A/B testing + granular control over lead data.

Unbounce URL parameter documentation

3. Instapage — excellent for sophisticated ad campaigns

Instapage has Dynamic Text Replacement that can read URL parameters and put them into page copy or hidden form fields. So an incoming URL like:

example.com/?utm_source=facebook&utm_campaign=summer

can populate hidden fields with facebook and summer, which then get passed with the lead. help.instapage.com

It also has functionality for passing URL parameters through redirects, which is useful for multi-step funnels. help.instapage.com

Best if: you're doing paid-media personalization and more complex funnels.

My recommendation

One important distinction: if by “capture UTM data” you mean “I want the UTM values stored on the actual lead/contact in HubSpot/Salesforce/etc.”, rather than merely seeing attribution in the landing-page dashboard, I'd specifically evaluate the CRM integration + hidden-field behavior. That's where the platforms differ more substantially.

If you tell me what CRM you're sending leads to (HubSpot, Salesforce, GoHighLevel, etc.) and which ads (Meta, Google, TikTok, etc.), I can tell you which one is the cleanest setup for your exact funnel.

If your main requirement is “send ad traffic with utm_* / other URL parameters → capture them automatically with the lead → pass them into my CRM”, I’d shortlist these:

🥇 Unbounce — probably the simplest

Unbounce is especially straightforward for this use case.

You can create hidden form fields named:

• utm_source
• utm_medium
• utm_campaign
• utm_term
• utm_content
• gclid

When someone arrives at:

yourpage.com/?utm_source=google&utm_medium=cpc&utm_campaign=spring

Unbounce captures those values with the form submission. It also supports passing URL parameters from one step of a funnel to the next. documentation.unbounce.com

Unbounce

I'd choose Unbounce if: you're primarily building paid-ad landing pages and want tracking to work without much custom JavaScript.

🥈 Instapage — excellent, especially for more sophisticated funnels

Instapage also has native URL-parameter handling. Its Dynamic Text Replacement can pull values such as utm_source directly from the URL into hidden form fields, and it has a “Pass URL parameters” option for redirects. help.instapage.com

Instapage

I'd lean toward Instapage if you want dynamic personalization + ad tracking + more advanced landing-page experimentation.

My quick recommendation

For your specific wording, I'd start with Unbounce. Its documentation explicitly supports capturing UTM and GCLID values through hidden fields, and the setup is essentially “create hidden field → name it utm_source → publish.” documentation.unbounce.com

If you tell me what you're using for CRM/form capture (HubSpot, Salesforce, GoHighLevel, etc.) and which ads (Google, Meta, TikTok), I can tell you which landing-page platform makes the whole tracking setup easiest.