Cookies for labs.os.uk

Cookies used for OS Labs

Cookies can be used to store users preferences and other information about visits and actions. Cookies come in two flavours, first-party and third-party. First-party cookies are set by the site or application you are visiting and can only be read by them. Third-party cookies are set by a different web site or application than the one you are currently visiting. They are generally used to track users between different web sites and applications and to display more relevant advertising. Additional cookie information is available from our main cookies page.

The following tables explain the cookies used, what they are for and when they expire:

Cookie NameDomainDurationCategoryProviderDescription
TS016beea5www.ordnancesurvey.co.ukSessionStrictly necessaryF5 NetworksUsed by BIG-IP ASM domain validation for security management.
TS016beea5028www.ordnancesurvey.co.ukSessionStrictly necessaryF5 NetworksUsed by BIG-IP ASM domain validation for security management.
BIGipServerprod_labs_http_pllabs.os.uk2 hoursStrictly necessaryF5 NetworksUsed by BIG-IP load balancing software to direct traffic across servers.
CookieControl.os.uk90 daysStrictly necessaryCIVICUsed by Cookie Control to store cookie preferences.
_ga_59ZBN7DVBG.os.uk400 daysPerformanceGoogleUsed by Google Analytics to identify and track users.
_ga.os.uk400 daysPerformanceGoogleUsed by Google Analytics to identify and track users.
_ga_E5T3PCFCG7.os.uk400 daysPerformanceGoogleUsed by Google Analytics to identify and track users.
_clck.os.uk365 daysTargeting/MarketingMicrosoftUsed by Clarity for synchronisation, tracking users, advertising and analytics.
vngage.id.os.ukSessionFunctionalPuzzelUsed by Web Chat & Chatbot to maintain the chat session between page loads.
vngage.vid.os.ukSessionFunctionalPuzzelUsed by Web Chat & Chatbot to track the current chat session.
vngage.lkvt.os.uk90 daysFunctionalPuzzelUsed by Web Chat & Chatbot to relate the current chat session to previous sessions.
psCurrentState.os.ukSessionFunctionalPuzzelUsed by Web Chat & Chatbot to contain the state of current chat session.
_gcl_au.os.uk90 daysTargeting/MarketingGoogleUsed by Google Adwords to identify and track users.
_uetsid.os.uk1 daysTargeting/MarketingMicrosoftUsed by Bing Ads for tracking users and advertising.
_uetvid.os.uk390 daysTargeting/MarketingMicrosoftUsed by Bing Ads for tracking users and advertising.
recordID.os.uk365 daysTargeting/MarketingDotdigitalUsed by Dotdigital Customer Relationship Manager to identify, track and target users.
dmSessionID.os.uk1 hoursTargeting/MarketingDotMailerUsed by DotMailer to track users in email campaigns.
tfpsi.os.uk1 hoursTargeting/MarketingTeadsUsed by Teads for measuring interaction in advertising campaigns, optimise advertisements and retargeting.
_clsk.os.uk1 daysTargeting/MarketingMicrosoftUsed by Clarity for synchronisation, tracking users, advertising and analytics.
QSI_HistorySessionlabs.os.ukSession>Targeting/MarketingQualtricsThis cookie is set to track the site history for analytic reasons
__Secure-ROLLOUT_TOKEN.youtube.com180 daysTargeting/MarketingGoogleThe __Secure-ROLLOUT_TOKEN cookie is used by YouTube to manage the phased rollout of new features and updates. This cookie helps assign users to specific test groups for experimental features, such as changes to the user interface or video player.

Last audited on: 11 June 2025