This cookie name is being set on 362,937 websites and 78,350 distinct domains and we have seen it bein used in the following objects:

  • 362,937 HTTP cookies

Cookie origin and purpose

  • CloudFlare cookie (confidence 0.5) » Reference...
  • CloudFlare functional cookie set in browsers visiting CloudFlare's customers' websites with the purpose of identifying malicious visitors and reducing the chance of blocking legitimate users (confidence 1.0) » Reference...
  • Generic CloudFlare functional cookie (confidence 0.75) » Reference...

Cookie classification

  • unknown (confidence 0.5)
  • tracking (confidence 0.5)

Sample values

Sample value:

                    Sample value:

Sample value:

Domains targeted by __cfduid cookie

This list includes both third-party domains set by tracking and adversing companies, as well as the first-party domains of the websites that use this cookie name.

Websites setting __cfduid cookie

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