Support
Real answers from the people who built it. Most questions are one of the four below — have a look first, it is usually faster than waiting for us.
My pixel is not reporting
Check three things: the experiment is running (not a draft), the snippet is in the <head> of the live published page rather than a preview, and the page's domain is in the experiment's Allowed domains list. The setup screen has a 'Send a test event' button that tells you which of those is wrong.
The two sides have very different visitor counts
That is a sample ratio mismatch and we flag it on the results page. It almost always means one pixel is missing, or something is redirecting traffic before our link runs. Fix that before trusting the numbers.
It says 'not enough data' but I have hundreds of visitors
Each page needs to clear the minimum sample size on its own, not combined. A 90/10 split takes a long time to get 100 visitors on the small side.
My conversions are not being attributed
A conversion can only be counted for a visitor we have already seen on Page A or Page B. If people reach your thank-you page without passing through the experiment link first, there is nothing to attribute it to.
Send us a message
Include your experiment name or link if it is about a specific test — it saves a round trip.