Research indicates that YouTube Ads are 84% more effective at capturing viewer attention compared to traditional TV advertising. This makes YouTube a powerful channel for businesses aiming to generate new leads and customers.
But to truly maximize your YouTube Ads ROI, you need the ability to accurately track and attribute leads and customers back to specific campaigns, ad groups, and even individual ads.
In this article, we’ll show you how to use Attributer to seamlessly capture YouTube Ads UTM parameters in Squarespace forms—giving you clear visibility into the source of every customer and lead.
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How to Track YouTube Ads Leads in Squarespace Forms: Step-by-Step

Ready to start tracking the source of your leads and customers from YouTube Ads in Squarespace? Just follow these four simple steps:
1. Add UTM Parameters to Your YouTube Ads
Start by appending UTM parameters to the URLs in your YouTube Ads. UTM parameters are snippets of text added to your destination URL, enabling precise UTM parameter tracking for every click.
For example, if your ad directs users to attributer.io/integrations/squarespace, your URL with UTM parameters might look like:
attributer.ai/integrations/squarespace?utm_medium=paidsocial&utm_source=youtube&utm_campaign=brand-campaign
For best results, use this recommended UTM structure for YouTube Ads:
- UTMMedium: paidsocial
- UTMSource: youtube
- UTM Campaign: [your campaign name]
- UTM Term: [your ad name]
This approach ensures you can capture and track the exact source of customers and leads.
2. Add Hidden Fields to Your Squarespace Forms
Next, enhance your lead capture forms (such as Contact Us, Request a Quote, or Booking forms) by adding hidden fields. These hidden fields will store attribution information from your UTM parameters.
Add these six hidden fields to your Squarespace forms:
- Channel
- Channel Drilldown 1
- Channel Drilldown 2
- Channel Drilldown 3
- Landing Page
- Landing Page Group

To do this in Squarespace: open your form, select ‘Edit Form Fields’, choose ‘Add New Field’, set it to ‘Hidden’, and give each field a clear name. For detailed instructions, check out our comprehensive setup guide.
3. Let Attributer Automatically Capture UTM Parameters

Once your forms are set up, Attributer will automatically capture UTM parameters and other attribution data with every form submission. This means you’ll always know the source of each lead—whether it’s from YouTube, another paid channel, or even organic sources.
For example, if a potential customer clicks your YouTube Ad and fills out a form, Attributer might populate the hidden fields as follows:
- Channel: Paid social
- Channel Drilldown 1: YouTube
- Channel Drilldown 2: [Your Campaign]
- Channel Drilldown 3: [Your Ad Name]
Attributer also records the user’s original landing page and landing page group, providing even deeper insight into the customer journey.
4. Access YouTube Ads Data in Squarespace and Beyond

When someone submits your form, Attributer passes all the captured data—including UTM parameters and source information—directly into Squarespace alongside their contact details.
With this data, you can:
- Review the source of every lead in your Squarespace dashboard
- Receive instant notifications showing the source of new leads via automated emails
- Push lead source data to your CRM (such as Salesforce, HubSpot, or Pipedrive) to build detailed reports on which campaigns and ads are driving the most customers
Why Attributer is the Best Solution for UTM Parameter Tracking in Squarespace
Attributer offers several key advantages for marketers and growth teams looking to track the source of customers and leads:
- Comprehensive Source Tracking: Capture not just YouTube leads, but all sources—including SEO, Google Ads, Facebook Ads, and more—for a complete view of your marketing performance.
- Persistent Attribution: Attributer stores UTM parameters in the browser, so you don’t lose tracking data even if visitors navigate across multiple pages before submitting a form.
- Landing PageInsights: Automatically records the first landing page and landing page group for every lead, helping you identify which content is most effective at generating leads and customers.
3 Powerful Reports You Can Build with YouTube Ads Data from Squarespace
Once you’re capturing UTM and source data, you can create insightful reports to optimize your marketing:
1. Leads by Channel

See exactly how many leads you’re capturing from each channel—YouTube, organic search, paid search, social, and more. This helps you allocate your budget to the most effective sources.
2. Customers by Campaign

Track which YouTube campaigns are converting leads into paying customers over time. Double down on what’s working, and refine or pause underperforming campaigns.
3. Revenue by Ad

Measure the revenue generated by each YouTube Ad. Use this data to make informed decisions about future ad spend and creative direction.
Conclusion
By integrating Squarespace forms with Attributer, you can easily capture UTM parameters and track the true source of every lead and customer from YouTube Ads and beyond. This empowers your marketing, sales, and growth teams to make smarter, data-driven decisions.
Ready to see how Attributer can transform your lead tracking? Start your 14-day free trial—setup takes less than 10 minutes.
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