Webflow
Lead attribution for Webflow
See the campaign, keyword and landing page behind every Webflow submission.
Webflow
Script installed
SourceTag
Captures attribution
Your forms
Hidden fields sent
Your tools
Data arrives tagged
Webflow
Script installed
SourceTag
Captures attribution
Your forms
Hidden fields sent
Your tools
Data arrives tagged
The problem
Your Webflow site shows you the submission. It doesn't show you the ad, search or referral that sent them, so you're left guessing which marketing is actually working.
How to set it up
Drop SourceTag into your Webflow site through Project Settings > Custom Code > Head Code. It watches how each visitor arrives, keeps that in a cookie, and writes it into your form's hidden fields the moment they submit. From there it travels wherever the form already sends data.
Grab your script tag
One line, copied from your SourceTag dashboard.
Paste it into Webflow
Go to Project Settings > Custom Code > Head Code in Webflow and drop the tag in.
Add hidden fields to your forms
Whatever builds your forms, add the SourceTag fields. Your form builder's setup guide has the names.
Check it works
Load the site with a UTM parameter, submit a form, and confirm the data landed.
Compatible form builders
These form builders all work with SourceTag on your Webflow site. Add hidden fields to any of them and attribution data gets captured on every submission.
Frequently asked questions
Copy the script tag from your SourceTag dashboard and paste it into your Webflow site header. If you're on WordPress, there's a plugin. Takes about two minutes.
Any form builder that supports hidden fields. Check our integrations page for form builders compatible with Webflow.
No. The script loads asynchronously and is under 5KB. It won't affect your page speed.
Install SourceTag once and it fills in hidden fields on every form across your site, regardless of which form builder you use.




