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The table below sets out the main cookies that we use on this site and what we use them for.
|Type of cookie||Cookie name||Expires after||Purpose|
|Site performance (Google Analytics)||_ga||2 years||Used to distinguish users.|
|_gat||1 minute||Used to throttle request rate. If Google Analytics is deployed via Google Tag Manager, this cookie will be named _dc_gtm_
|AMP_TOKEN||30 seconds to 1 year||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.|
|_gac||30 seconds to 1 year||Contains campaign related information for the user.|
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