Name Third-Party Provider Function
__hssc HubSpot Used to keep track of sessions. This is used to determine if we should increment the session number and timestamps in the __hstc cookie.
__hssrc HubSpot Whenever HubSpot changes the session cookie, this cookie is also set. We set it simply to the value “1”, and use it to determine if the user has restarted their browser. If this cookie does not exist when we manage cookies, we assume it is a new session.
__hstc HubSpot The main cookie for tracking visitors to our website. It contains: the domain, utk (see below), initial timestamp (first visit), last timestamp (last visit), current timestamp (this visit), and session number (increments for each session).
hubspotutk HubSpot Used to keep track of website visitors. This cookie is passed to HubSpot on form submission and used when deduplicating contacts.
messagesUtk HubSpot Use is not specified.
__cfduid CloudFlare Used to identify individual clients behind a shared IP address and apply security settings on a per-client basis.
_ga Google Used to distinguish users.
_gid Google Used to distinguish users.
__utma Google Used to distinguish users and sessions. The cookie is updated every time data is sent to Google Analytics.
__utmc Google Used to calculate how long a visit lasts, mostly deprecated.
__utmz Google Used to store the traffic source or campaign that explains how the user reached our site.