Cookie associated with sites using CloudFlare, used to speed up page load times. According to
CloudFlare it is used to override any security restrictions based on the IP address the visitor is coming
from. It does not contain any user identification information.
The BIG-IP ASM system validates these cookies returning from the clients to ensure that the cookies are not modified. In BIG-IP ASM 11.4.0 and later, a random security key is generated uniquely to each deployment and combined with a configurable encryption algorithm to provide a security context for cookie protection. Prior to 11.4.0, the BIG-IP ASM system signs each cookie with an MD5 digest signature, which is verified upon return against a stored message key.
This cookie name is asssociated with Google Universal Analytics - which is a significant update to
Google's more commonly used analytics service. This cookie is used to distinguish unique users by
assigning a randomly generated number as a client identifier. It is included in each page request in a
site and used to calculate visitor, session and campaign data for the sites analytics reports.