1. _ga cookie is associated 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. By default it is set to expire after 2 years, although this is customisable by website owners.
The main purpose of _ga cookie is performance.
2. _gat cookie is used to throttle requests.
3. __stripe_mid and __stripe_sid cookie is associated with Calendly, a Meeting Schedulers that some websites employ. This cookie allows the meeting scheduler to function within the website.
The main purpose of __stripe_mid cookie is functionality
4. __utma is one of the four main cookies set by the Google Analytics service which enables website owners to track visitor behaviour and measure site performance. This cookie lasts for 2 years by default and distinguishes between users and sessions. It it used to calculate new and returning visitor statistics. The cookie is updated every time data is sent to Google Analytics. The lifespan of the cookie can be customised by website owners.
5. __utmc is one of the four main cookies set by the Google Analytics service which enables website owners to track visitor behaviour and measure site performance. It is not used in most sites but is set to enable interoperability with the older version of Google Analytics code known as Urchin. In this older versions this was used in combination with the __utmb cookie to identify new sessions/visits for returning visitors. When used by Google Analytics this is always a Session cookie which is destroyed when the user closes their browser. Where it is seen as a Persistent cookie it is therefore likely to be a different technology setting the cookie.
6. __utmz is one of the four main cookies set by the Google Analytics service which enables website owners to track visitor behaviour measure of site performance. This cookie identifies the source of traffic to the site - so Google Analytics can tell site owners where visitors came from when arriving on the site. The cookie has a life span of 6 months and is updated every time data is sent to Google Analytics.
7. _gid cookie is associated with Google Universal Analytics. _gid distinguishes users and stores and updates a unique value for each page visited. The cookie has a life span of 24 hours.
8. _jsuid cookie is set by the Clicky web analytics service from Roxr Software. The cookie contains a random unique user identifier that is generated the first time someone visits a web site using the Clicky software. Its purpose is to identify new and unique visitors to a web site. The value of this cookie will also be set as a third party cookie with the name of cluid if such a cookie does not exist.
The main purpose of _jsuid cookie is performance.