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You can apply predefined tags to your experiments to change Kameleoon’s default behavior:
  • TECHNICAL:
    When you add a TECHNICAL tag to an experiment, Kameleoon displays the variation but doesn’t collect or send data to an analytics platform until the visitor gives consent.
    This tag is typically used for experiments or personalization campaigns that display the same variant to all users.
  • DELAYED:
    Adding the DELAYED tag to an experiment allows you to delay non-essential experiments until after the first page load. Experiments with this tag are intelligently managed:
    Kameleoon doesn’t download the configuration until at least 10 seconds of idle time pass after the initial page load, or until it targets the visitor and allocates a variant other than the control variant.
  • LIVE-UPDATE:
    By default, Kameleoon downloads active experiments and includes them in the app file (kameleoon.js).
    The browser stores and caches this file for 90 minutes. If you pause, stop, or modify an experiment, targeted visitors returning to a page with active experiments within the 90-minute caching period may still see the experiment because their browser serves the cached version. Outside that caching window, a paused or stopped experiment no longer assigns its variation, and visitors revert to the original experience on their next page evaluation.
    To update more frequently than browser caching normally allows, add the LIVE-UPDATE tag: it refreshes any experiment within 1 minute, which is particularly useful for campaigns that require regular updates.
  • HOLDOUT:
    Create a control group that remains unaffected by any active campaigns, so you can establish a reliable baseline that measures the aggregate impact of all changes against a group that experiences no modifications.
    Set up an experiment in Kameleoon and tag it with the HOLDOUT label.
    More about this tag
  • MUTUALLY EXCLUSIVE GROUP:
    Group campaigns so that each visitor sees only one campaign per group, reducing overlap and improving test clarity.
    Follow the naming convention ME-GROUP-{GROUP NAME} to tag each campaign in the group, such as ME-GROUP-A.
    This naming signals Kameleoon to treat the campaigns within each group as mutually exclusive.
    More about this tag