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Cookies on the UK Trade Tariff Developer Portal

Cookies are files saved on your phone, tablet or computer when you visit a website. We use cookies to store information about how you use this website, such as the pages you visit.

You can change your cookie settings at any time.

Strictly necessary cookies

These essential cookies do things like remember your progress through the application. They always need to be on, or the service will not function.

NamePurposeExpires
sessionStores details about your current login sessionWhen you close your browser
session_sigStores a digital signature to ensure that the 'session' cookie hasn't been alteredWhen you close your browser
appSession.0, appSession.1, etc.Temporarily stores any information you provide while completing forms within the siteWhen you close your browser
cookies_policySaves your cookie consent choice1 year
cookies_preferences_setTracks whether you have dismissed the cookie confirmation message1 year

Cookies that measure website use

With your permission, we use Google Tag Manager and Google Analytics to collect anonymised information about how you use this service. This helps us improve the Developer Portal.

These cookies are only set if you accept additional cookies.

NamePurposeExpires
_gaIdentifies returning visitors so we can measure unique users2 years
_ga_<container_id>Maintains session state for Google Analytics 42 years
_gidIdentifies your browsing session so we can measure daily users24 hours
_gat_*Used by Google Analytics to throttle the request rate1 minute

Last updated 21 April 2026