Cookie Policy

We use cookies on this website to enhance your experience and improve the quality of our website. By continuing to use this website without changing your browser settings, you consent to the use of cookies as described in our Cookie Policy.

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.

Technical:
These are cookies that are required for the operation of a website. They include, for example, cookies that enable you to log into secure areas of a website or to purchase goods online.
Cookie Name Provider Purpose Data Gathered Retention
hasZDEDebuggerPresent_js services.costco.co.uk This cookie is essential to track and debug error conditions within the website. Error tracking End of browser session
PHPSESSID services.costco.co.uk Session tracking cookie for cake / deli orders Order End of browser session
JSESSIONID members.costco.co.uk Session tracking cookie for membership sign up on costco.is and co.uk Items in cart End of browser session
BIGipServerpool-prod-app-uk costcotravel.co.uk Akamai cookie   End of browser session
Csrf-Token costcotravel.co.uk Session tracking cookie to set action call header Csrf-token End of browser session
JSESSIONID costcotravel.co.uk Session tracking cookie for member browse costcotravel.co.uk car selected for booking End of browser session
Rental-alamo_com assests.alamo.com Load balancer cookies for routing user requests   End of browser session
Rental-c_enterprise_com assests.enterprise.com Load balancer cookies for routing user requests   End of browser session
Preferences:
These cookies allow the user to access the site with certain general features which are predefined according to a number of criteria in the user’s terminal (e.g., language, type of browser, regional settings). These are used to recognize a user when you return to a website. These cookies enable us to personalize content for a user and remember preferences.
Cookie Name Provider Purpose Data Gathered Retention
N/A N/A N/A N/A N/A
Security:
We use these cookies to help identify and prevent security risks.
Cookie Name Provider Purpose Data Gathered Retention
N/A N/A N/A N/A N/A
Performance:
We use these cookies to collect information about how you interact with our website and to help us improve it. For example, we may use these cookies to determine if you have interacted with a certain webpage.
Cookie Name Provider Purpose Data Gathered Retention
N/A N/A N/A N/A N/A
Analytics:
These cookies allow us to better understand how our users interact with our website. They allow us to recognize and count the number of visitors and to see how visitors move around a website when they are using it. These cookies help us improve the way a website works, for example, by ensuring that users are finding what they are looking for easily. We can use these cookies to learn more about which features are the most popular with our users and where we may need to make improvements.
Cookie Name Provider Purpose Data Gathered Retention
__utma Google Used to distinguish users and sessions - on warehouses.costco.co.uk Clicks and page views 2 years from set/update
__utmb Google Used to determine new sessions/visits. - on warehouses.costco.co.uk Clicks and page views 30 mins from set/update
__utmc Google operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit - on warehouses.costco.co.uk Clicks and page views End of browser session
__utmt Google Used to throttle request rate - on warehouses.costco.co.uk Clicks and page views 10 minutes
__utmv Google Used to store visitor-level custom variable data - on warehouses.costco.co.uk Clicks and page views 2 years from set/update
__utmz Google Stores the traffic source or campaign that explains how the user reached your site - on warehouses.costco.co.uk Clicks and page views 6 months from set/update
_ga Google Used to distinguish users - services.costco.co.uk & costco.is Clicks and page views 2 years
_gat Google Used to distinguish users - services.costco.co.uk Clicks and page views 1 minute
_gid Google Used to throttle request rate - services.costco.co.uk Clicks and page views 24 hours
_gat_gtag_UA_19898326_2
_gat_gtag_UA_19898326_4
Google Contains campaign related information for the user - warehouses.costco.co.uk & services.costco.co.uk Clicks and page views 90 days
_gat_gtag_UA_91582400_1
_gat_gtag_UA_91582400_2
Google Contains campaign related information for the user - costco.is & Iceland membership sign up on members.costco.co.uk Clicks and page views 90 days
Session Cam Session Cam Tracks session activity to provide customer and technical support Screen and mouse movements 1 year
_ga .costcotravel.co.uk Used for google analytics - costcotravel.co.uk Clicks and page views 2 years
_gid .costcotravel.co.uk Used to throttle request rate - costcotravel.co.uk Clicks and page views 24 hours
_gat .costcotravel.co.uk Used for google analytics - costcotravel.co.uk Clicks and page views 1 minute
TLTSID assests.enterprise.com Used for TeaLeaf analytics - enterprise.com Clicks and page views End of browser session
TLTSID assests.alamo.com Used for TeaLeaf analytics - alamo.com Clicks and page views End of browser session
TLTUID assests.enterprise.com Used for TeaLeaf analytics - enterprise.com Clicks and page views 600 days
TLTUID assests.alamo.com Used for TeaLeaf analytics - alamo.com Clicks and page views 600 days