What the chk cookie does
This cookie is set on Google Chrome browsers that have a version less 67 or non-Chrome browsers, and is used for testing purposes.
This cookie is added by mediarithmics In the case of a call on events.mediarithmics.com without a cookie mics_vid, this cookie is written to check that the user browser supports third party cookies. It contains a randomly generated UUID.
Who sets it
Consent category: functional
Functional cookies remember a choice the visitor made, such as a language, a region or a layout preference. They are not essential, so visitors in the EU must be able to decline them, and a site should not set them before consent.
| Name | chk |
|---|---|
| Category | Functional |
| Lifetime | 3 months |
| Set by | Pubmatic, Mediarithmics |
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From the Conzent cookie database, last updated 2026-09-27. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.