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How Does VWO Handle URL Parameters?

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By default, VWO includes the query parameters appended to the URL. For example, if you specify the campaign URL as, then the campaign automatically runs on the URLs such as (Here, test1 and test2 are query parameters.)

However, if you have manually specified some query parameter under Included URLs, then the campaign runs on this URL only and no other query parameter is allowed. For example, the campaign will not run on the URLs of type

In case of a split URL test, the query parameters appended to the control URL are forwarded to the variation URL. For example, in a split URL test:

  • If a user lands on the URL, then the corresponding variation URL is
  • If the variation page already has some other parameters, you should add an asterisk (*) at the end of the control and variation URLs to handle the parameters.

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