Originally Posted By: Virtual1
this is informative:

http://www.strategyand.pwc.com/global/home/cookie-information

Quote:
The "__cfduid" cookie is set by the CloudFlare service to identify trusted web traffic. It does not correspond to any user id in the web application, nor does the cookie store any personally identifiable information.
https://support.cloudflare.com/hc/en-us/...duid-cookie-do-

It doesn't appear to be a multipurpose or "common name to use" cookie, it just has one purpose, and is used heavily for that purpose. (and with a five year persistence)

the "cf" is CouldFlare, not sure on the "d", and "uid" in this case is Unique IDentifier, not "User ID". (I see "UID" used equally in both contexts around computers)

It's not as informative as what joemike posted in post #43312, and ryck and I at the least are seeing only 1 year persistence.

Still wondering what ryck's __cfluid might be.

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