Overview of Google Ads conversion tracking
Updated May 21, 2025
Google Ads conversion tracking is a tool that shows you what happens after someone clicks on your ad. It helps track actions like purchases, form submissions, sign-ups, or other goals you set. You add a small tag to your site or use server-side tracking to collect this data.
This tracking gives Google the info it needs to understand which ads are performing well and which aren't. It also powers features like smart bidding, helping you get more conversions at a better cost.
Enhanced Conversions in Google Ads
Enhanced Conversions is a feature in Google Ads that improves the accuracy of your conversion tracking by using first-party customer data that users provide on your website (email addresses, phone numbers, home addresses, and so on).
When someone interacts with your ad and completes a conversion (like making a purchase or filling out a form), this data is securely hashed (encrypted) using Google’s SHA-256 algorithm and sent to Google. Google then matches it with signed-in users to better attribute the conversion to the right ad click, even across devices or browsers.
Benefits of Google Ads conversion tracking
- Clear results and better insights - see which ads, keywords, and campaigns actually drive conversions. Track micro-conversions (like add-to-cart or page views) and not just final sales.
- Smart bidding for improved ROI - let Google automatically optimize bids based on conversion data and focus your budget on what works best.
- Enhanced Conversions - use first-party data (e.g., email or phone) to improve accuracy and connect user actions across multiple devices, all the while remaining compliant with privacy laws.
To configure Google Ads conversion tracking, there are two options:
FAQ
What is the difference between Google Ads conversion tracking and Google Analytics 4?
Google Ads conversion tracking is focused on advertising performance. Its main goal is to help you see which ads, keywords, or campaigns lead to valuable actions. This data feeds directly into your Google Ads account and powers tools like smart bidding to help you get better results for your ad spend.
Another big difference is how they count conversions. Google Ads attributes conversions based on ad clicks and uses models like last-click or data-driven attribution to credit ads. GA4 uses an event-based model and may count conversions slightly differently, especially when users interact across multiple channels or devices.
In short:
- Use Google Ads conversion tracking to optimize your ad campaigns and bidding.
- Use GA4 to understand the full customer journey and overall site performance.