Deduplication is the process of making sure a single conversion is only counted once, even if it’s tracked in more than one way.
What is deduplication?
When someone takes an important action on your website, like submitting a form or making a purchase, that event can be tracked by different methods at the same time. For example, both a tracking pixelA tracking pixel is a small piece of code an ad or analytics platform gives you to put on your website. It reports what visitors do so the platform can measure and optimize your ads. in the browser and a server connection through a platform's conversion API might record it. Without deduplication, the same event could get counted twice.
Deduplication tells the ad platform that these are the same event, so it only counts it once.
Why It Matters
Your ad decisions are only as good as your conversion numbers. If your events are being counted more than once:
- Your conversion numbers can look inflated
- Your cost-per-result can seem lower than it really is
- Your ad platform might optimize based on bad data
That can waste ad budget and leave you with reports you can't rely on.
How It Helps With Conversion APIs
Ad platforms like Meta and Reddit encourage the use of conversion APIs because they are more reliable than traditional tracking methods. They can still report a conversion when cookiesA small piece of data stored in a user’s browser that helps websites remember user activity, preferences, or sessions across visits. are blocked or an ad blocker stops the browser tag.
When you're sending the same event through both browser and server, you need a way to keep the data clean, and deduplication does that behind the scenes.
The role of Conversion Bridge in deduplication
With Conversion Bridge, you don't need to set up deduplication yourself. When a conversion goes out through both a browser pixel and a server connection, Conversion Bridge gives both copies the same ID, so the platform can match them and count the conversion once.
Why you’ll be glad it’s there
- You get cleaner, more trustworthy data
- Your cost and return on ad spendMeasures how much revenue is earned for every dollar spent on advertising, helping you evaluate the effectiveness of your ad campaigns. numbers are more accurate
- Your ads can be optimized using real performance, not duplicates