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.
| Name | Purpose | Expires |
|---|---|---|
| session | Stores details about your current login session | When you close your browser |
| session_sig | Stores a digital signature to ensure that the 'session' cookie hasn't been altered | When you close your browser |
| appSession.0, appSession.1, etc. | Temporarily stores any information you provide while completing forms within the site | When you close your browser |
| cookies_policy | Saves your cookie consent choice | 1 year |
| cookies_preferences_set | Tracks whether you have dismissed the cookie confirmation message | 1 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.
| Name | Purpose | Expires |
|---|---|---|
| _ga | Identifies returning visitors so we can measure unique users | 2 years |
| _ga_<container_id> | Maintains session state for Google Analytics 4 | 2 years |
| _gid | Identifies your browsing session so we can measure daily users | 24 hours |
| _gat_* | Used by Google Analytics to throttle the request rate | 1 minute |
Last updated 21 April 2026