Use of Cookies

__RequestVerificationToken

www.grpgroup.co.uk

This is an anti-forgery cookie set by web applications built using ASP.NET MVC technologies. It is designed to stop unauthorised posting of content to a website, known as Cross-Site Request Forgery. It holds no information about the user and is destroyed on closing the browser.

After session

Session

ASP.NET_SessionId

www.grpgroup.co.uk

General purpose platform session cookie, used by sites written with Miscrosoft .NET based technologies. Used used to maintain an anonymised user session by the server.

After session

Session

__utmb

Google Analytics

This cookie determines new sessions and visits and expires after 30 minutes. The cookie is updated every time data is sent to Google Analytics. Any activity by a user within the 30 minute life span will count as a single visit, even if the user leaves and then returns to the site. A return after 30 minutes will count as a new visit, but a returning visitor.

30 minutes

Session

__utmc

Google Analytics

This 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 version is 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.

After session

Session

__utmt

Google Analytics

This cookie is set by Google Analytics. According to their documentation it is used to throttle the request rate for the service - limiting the collection of data on high traffic sites. It expires after 10 minutes

10 minutes

Session

_gat_UA-nnnnnnn-nn

Google Analytics

This is a pattern type cookie set by Google Analytics, where the pattern element on the name contains the unique identity number of the account or website it relates to. It appears to be a variation of the _gat cookie which is used to limit the amount of data recorded by Google on high traffic volume websites.

After session

Session

GPS

.youtube.com

Registers a unique ID on mobile devices to enable tracking based on geographical GPS location.

Session

YSC

.youtube.com

Registers a unique ID to keep statistics of what videos from YouTube the user has seen.

Session

__utma

Google Analytics

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.

2 years

Persistent

__utmz

Google Analytics

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.

6 months

Persistent

_ga

Google Analytics

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.

2 years

Persistent

_gid

www.grpgroup.co.uk

It is used to store and update a unique value for each page visited.

1 day

Persistent

IDE

.doubleclick.net

This cookie carries out information about how the end user uses the website and any advertising that the end user may have seen before visiting the said website.

1 year

Persistent

PREF

.youtube.com

This cookie, which may be set by Google or Doubleclick, may be used by advertising partners to build a profile of interests to show relevant ads on other sites. It works by uniquely identifying your browser and device.

9 months

Persistent

VISITOR_INFO1_LIVE

.youtube.com

This cookie is set by Youtube to keep track of user preferences for Youtube videos embedded in sites;it can also determine whether the website visitor is using the new or old version of the Youtube interface.

6 months

Persistent

vuid

.vimeo.com

These cookies are used by the Vimeo video player on websites.

2 years

Persistent