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Cookie Policy

Note: we update this policy once in 6 months.

Cookies are small text files that can be used by websites to make a user's experience more efficient.

According to EU legislation, we can store cookies on your device if they are strictly necessary for the operation of this website. For all other types of cookies, we need your permission.

This website uses different types of cookies. Some cookies are placed by third party services that appear on our pages. You can at any time change or withdraw your consent from the Cookie Policy on our website.

Learn more about who we are, how you can contact us, and how we process personal data in our Privacy Notice.

  • Necessary cookies
  • Preference cookies
  • Analytics cookies
  • Marketing cookies

Necessary cookies.

Necessary cookies make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

Name Purpose Expiry
_gat Used to throttle request rate. If Google Analytics is deployed via Google Tag Manager, this cookie will be named _dc_gtm_. 1 minute
AMP_TOKEN Contains a token that can be used to retrieve a Client ID from AMP Client ID service. Other possible values indicate opt-out, inflight request or an error retrieving a Client ID from AMP Client ID service. 30 seconds to 1 year
__utmt Used to throttle request rate. 10 minutes
__utmb Used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing __utmb cookies exist. The cookie is updated every time data is sent to Google Analytics 30 mins from set/update
__utmc Not used in ga.js. Set for interoperability with urchin.js. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit End of browser session
_gaexp Used to determine a user's inclusion in an experiment and the expiry of experiments a user has been included in. 90 days
_opt_utmc Stores the last utm_campaign query parameter. 24 hours
zirity-session Used to distinguish try-on sessions. 24 hours
csrftoken Stores authorization token for user’s session. 24 hours

Preference cookies

Preference cookies enable a website to remember information that changes the way the website behaves or looks like your preferred language or the region that you are in.

Name Purpose Expiry
_gid Used to distinguish users. 24 hours
__utmv Used to store visitor-level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to Google Analytics. 2 years from set/update
uid This cookie contains an identifier than enables Criteo to identify the user across different websites. 1 year
optout This cookie enables Criteo to remember that the user made the choice not to be tracked by Criteo. 5 years

Analytics cookies

Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.

Name Purpose Expiry
_utma Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exist. The cookie is updated every time data is sent to Google Analytics. 2 years from set/update

Marketing cookies

Marketing cookies are used to track visitors across websites. The intention is to display ads that are relevant and engaging for the individual user and thereby more valuable for publishers and third party advertisers.

Name Purpose Expiry
_opt_awcid Used for campaigns mapped to Google Ads Customer IDs. 24 hours
_opt_awmid Used for campaigns mapped to Google Ads Campaign IDs. 24 hours
_opt_awgid Used for campaigns mapped to Google Ads Ad Group IDs 24 hours
_opt_awkid Used for campaigns mapped to Google Ads Criterion IDs 24 hours
_gac_ Contains campaign related information for the user. If you have linked your Google Analytics and Google Ads accounts, Google Ads website conversion tags will read this cookie unless you opt-out. 90 days
cto_bundle This cookie helps Criteo better manage the tracking solution. This bundle is Criteo’s first-party cookie, enabling personalised marketing by locally storing match keys only for users who have provided appropriate related consent. 13 months
cto_optout This cookie helps Criteo identify the opted-out users. 5 years
criteo_write_test Cookie used to check whether Criteo can drop cookies on the current subdomain. Deleted after being written
cto_tld_test Cookie used to find the higher level domain under which a cookie can be written. Deleted after being written
criteo_localstorage_check Cookie used to check whether Criteo can write to the local storage. Deleted after being written

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