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Costco’s Cookie Policy provides more detail about how we use cookies and similar technologies to collect information when you visit our website and the choices you have regarding the use of cookies. Listed below are the cookies and similar tracking technologies we deploy on Costco.co.uk. For more information on how we collect and process personal data about you, please see our Privacy Policy.

 

Cookie Name Host Expiry Type Definition Category Vendor
__CT_Data costco.co.uk a year BROWSER The __CT_Data cookie is used to count the number of pageviews or visits of the anonymous visitor for the purpose of enabling the ClickTale software to track the number of pageviews or visits a visitor made on website. ANALYTICS ContentSquare
_cs_c costco.co.uk
cdnssl.clicktale.net
a year BROWSER This is a session cookie. This is a pattern type cookie where a random 13-digit number is appended to the prefix _cs_. ANALYTICS ContentSquare
_cs_id costco.co.uk
cdnssl.clicktale.net
a year BROWSER This is a session cookie. This is a pattern type cookie where a random 13-digit number is appended to the prefix _cs_. ANALYTICS ContentSquare
_cs_root-domain costco.co.uk Session Session This is a session cookie. This is a pattern type cookie where a random 13-digit number is appended to the prefix _cs_. ANALYTICS ContentSquare
_cs_s costco.co.uk
cdnssl.clicktale.net
30 minutes BROWSER This is a session cookie. This is a pattern type cookie where a random 13-digit number is appended to the prefix _cs_. ANALYTICS ContentSquare
_cs_same_site costco.co.uk
cdnssl.clicktale.net
Session Session This is a session cookie. This is a pattern type cookie where a random 13-digit number is appended to the prefix _cs_. ANALYTICS ContentSquare
_CT_RS_ costco.co.uk a month BROWSER Clicktale generated cookie that tracks a user's behavior on a web page. ANALYTICS ContentSquare
_fbp costco.co.uk 3 months BROWSER Used by Facebook to deliver a series of advertisement products such as real time bidding from third party advertisers ANALYTICS Facebook
_ga costco.co.uk 2 years BROWSER This cookie name 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. ANALYTICS Google Analytics
_gat_UA-35782085-1 costco.co.uk a few seconds BROWSER 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. ANALYTICS Google Analytics
_gclxxxx costco.co.uk 3 months BROWSER Google conversion tracking cookie ANALYTICS Google Analytics
_gid costco.co.uk a day BROWSER This cookie name is associated with Google Universal Analytics. This appears to be a new cookie and as of Spring 2017 no information is available from Google. It appears to store and update a unique value for each page visited. ANALYTICS Google Analytics
<BLANK> www.facebook.com Session Session This domain is owned by Facebook, which is the world's largest social networking service. As a third party host provider, it mostly collects data on the interests of users via widgets such as the 'Like' button found on many websites. This is used to serve targeted advertising to its users when logged into its services. In 2014 it also started serving up behaviourally targeted advertising on other websites, similar to most dedicated online marketing companies. ANALYTICS Facebook
ak_bmsc costco.co.uk an hour BROWSER Akamai Cookie used by Botmanager module to distinguish between bots and humans ESSENTIAL Akamai
bm_mi costco.co.uk a few seconds BROWSER Akamai Bot Manager – Security cookie ESSENTIAL Akamai
bm_sv costco.co.uk an hour BROWSER Akamai Cookie used by Botmanager module for security and protection against bots ESSENTIAL Akamai
bv_metrics www.costco.co.uk
apps.bazaarvoice.com
2 hours BROWSER This cookie is used for performance diagnostic events for less than 1/1000th of users. ANALYTICS BazaarVoice
BVBRANDID costco.co.uk a year BROWSER This cookie allows internal Bazaarvoice web analytics to be correlated to the same user for interactions within a particular client domain. ANALYTICS BazaarVoice
BVBRANDSID costco.co.uk 27 minutes BROWSER This cookie allows internal Bazaarvoice web analytics to be correlated to the same user browsing session for interactions within a particular client domain. ANALYTICS BazaarVoice
BVID network-eu.bazaarvoice.com a year BROWSER Allows internal Bazaarvoice web analytics to be correlated to the same user for interactions across the Bazaarvoice network. ANALYTICS BazaarVoice
BVImplmain_site www.costco.co.uk
display.ugc.bazaarvoice.com
Session Session Used for client-driven A/B tests. <site> is the ID of the current configuration used, most often main_site. ANALYTICS BazaarVoice
BVSID network-eu.bazaarvoice.com 30 minutes BROWSER Allows internal Bazaarvoice web analytics to be correlated to the same user browsing session for interactions across the Bazaarvoice network. ANALYTICS BazaarVoice
context_segment www.costco.co.uk 5 minutes BROWSER Spartacus elements that will be cached by Akamai ESSENTIAL  
CSRFToken costco.co.uk a year BROWSER This cookie contains a unique ID that references the current session on the website. This is the same cookie, with the same function, as ASP.NET_SessionId, that has been renamed.    
fr facebook.com 3 months BROWSER Contains browser and user unique ID combination, used for targeted advertising. ANALYTICS Facebook
GCLB www.costco.co.uk Session Session This cookie contains the specific Google Cloud Load Balancer the browser has been routed to for the current domain/session ESSENTIAL Google
GPS youtube.com 30 minutes BROWSER YouTube is a Google owned platform for hosting and sharing videos. YouTube collects user data through videos embedded in websites, which is aggregated with profile data from other Google services in order to display targeted advertising to web visitors across a broad range of their own and other websites. ANALYTICS Youtube
HAPC www.costco.co.uk Session Session   ESSENTIAL Costco International
IDE doubleclick.net a year BROWSER This domain is owned by Doubleclick (Google). The main business activity is: Doubleclick is Googles real time bidding advertising exchange ANALYTICS Double Click
JSESSIONID www.costco.co.uk Session Session General purpose platform session cookie, used by sites written in JSP. Usually used to maintain an anonymous user session by the server. ESSENTIAL Costco International
ROUTEID www.costco.co.uk Session Session This cookie enables the routing the request routing to the appropriate server for the session. ESSENTIAL Costco International
SF_SESSION_ID www.costco.co.uk Session Session Storefront session id, used to track user operations ESSENTIAL Costco International
SiteMessage_comp_0000CXHB www.costco.co.uk 7 days BROWSER This cookie identifies if the customer has seen the specific site message. ESSENTIAL  
test_cookie doubleclick.net 15 minutes BROWSER This domain is owned by Doubleclick (Google). The main business activity is: Doubleclick is Googles real time bidding advertising exchange ANALYTICS  
uk_RVP www.costco.co.uk a month BROWSER This cookie identifies a list of recently viewed products for the current browser. ESSENTIAL  
uk-cart www.costco.co.uk 11 years BROWSER An ID to associate to a DB cart ESSENTIAL  
UserPreferences www.costco.co.uk Session Session This cookie saves user preferences on the website. ESSENTIAL  
VISITOR_INFO1_LIVE youtube.com 6 months BROWSER This cookie is used as a unique identifier to track viewing of videos ANALYTICS  
vuid vimeo.com 2 years BROWSER This domain is owned by Vimeo. The main business activity is: Video Hosting/Sharing ANALYTICS  
WRIgnore costco.co.uk an hour BROWSER This cookie name is commonly associated with analytics service provider ClickTale. This cookie is created if the domain is not selected or if the account has run out of recording credits. It provides information that the specific visitor should not be recorded or tracked by the software. ANALYTICS Content Square
WRUID costco.co.uk a year BROWSER This cookie name is commonly associated with analytics service provider ClickTale. This cookie is used to anonymously identify a visitor of the website for the purpose of enabling the ClickTale software to track such visitor’s actions across the client’s website. ANALYTICS Content Square
YSC youtube.com Session Session YouTube is a Google owned platform for hosting and sharing videos. YouTube collects user data through videos embedded in websites, which is aggregated with profile data from other Google services in order to display targeted advertising to web visitors across a broad range of their own and other websites. ANALYTICS Youtube
NoCookie costco.co.uk 0 BROWSER This cookie is set when a user opts out of tracking or indicates that they are under the age of 13 (COPPA requirement). If NoCookie=true on either the client site or Bazaarvoice site, then existing tracking cookies are unset. This value is honored as long as the cookie exists. ESSENTIAL BazaarVoice
OptanonConsent www.costco.co.uk 365 BROWSER This cookie is set by the cookie compliance solution from OneTrust. It stores information about the categories of cookies the site uses and whether visitors have given or withdrawn consent for the use of each category. This enables site owners to prevent cookies in each category from being set in the users browser, when consent is not given. The cookie has a normal lifespan of one year, so that returning visitors to the site will have their preferences remembered. It contains no information that can identify the site visitor. ESSENTIAL OneTrust
OptanonAlertBoxClosed www.costco.co.uk 365 BROWSER This cookie is set by websites using certain versions of the cookie law compliance solution from OneTrust. It is set after visitors have seen a cookie information notice and in some cases only when they actively close the notice down. It enables the website not to show the message more than once to a user. The cookie has a one year lifespan and contains no personal information. ESSENTIAL OneTrust
costcosipstorefrontRememberMe costco.uk 1 BROWSER Remember log in feature   Costco International