How to QA an A/B Test before launching it?

Follow the steps below to QA your A/B test before launching it to your real visitors.

1. After you have finished drafting the A/B test, in the campaign configuration, go to the Target subsection and select Specific target.

2. Click on Create new target.

In the new target, select the Query string filter, and set the query string to testing. Set the condition to is not empty.

Save the target, and apply it to the campaign.

3. Next, change the Variation split. Uncheck Even Split, and change the Variation to 99%, keeping Original at 1%. It's important for Original to have 1% so the test runs properly on the website.

4. Save your changes and launch the test.

5. In incognito/private mode of your browser, access the A/B test URL with the following query string: ?testing=true.

Example of a full URL: https://example.com/?testing=true

This will ensure you are part of the test target and trigger the A/B test. It will only run when using that query string, so it won't affect your real visitors.

Additional notes:

• Make sure to remove or adjust the Specific target and Variation split settings once QA is complete, so the test runs normally for all visitors. As well as reset the campaign stats.
• This method allows you to safely live test variations without affecting your real visitors.

Congratulations, you're now ready to confidently QA your A/B tests before going live!

Updated on: 23/10/2026