Cookies can be used to store users preferences and other information about visits and actions. Cookies come in two flavours, first-party and third-party. First-party cookies are set by the site or application you are visiting and can only be read by them. Third-party cookies are set by a different web site or application than the one you are currently visiting. They are generally used to track users between different web sites and applications and to display more relevant advertising. Additional cookie information is available from our main cookies page.
The following tables explain the cookies used, what they are for and when they expire:
First-party cookies
| Name | Domain | Expires | Category | Source | Purpose |
|---|---|---|---|---|---|
| _vwo_uuid_v2 | .demos.ordnancesurvey.co.uk | 1 year | Performance | VWO | Used by Visual Web Optimizer to track and measure user behaviour during A/B testing. |
| BIGipServerprod_demos_http_pl | demos.ordnancesurvey.co.uk | 60 minutes | Strictly necessary | F5 Networks | Used by BIG-IP load balancing software to direct traffic across servers. |
Third-party cookies
| Name | Domain | Expires | Category | Source | Purpose |
|---|---|---|---|---|---|
| _fbp | .ordnancesurvey.co.uk | 8 months | Targeting/Marketing | Meta | Used by Facebook to measure user behaviour and target advertising. |
| _hjSession_9999 | .ordnancesurvey.co.uk | 29 minutes | Performance | Hotjar | Used by Hotjar to track user activity and interactions during a visit. |
| _hjFirstSeen | .ordnancesurvey.co.uk | 29 minutes | Performance | Hotjar | Used by Hotjar to track user activity and interactions during a visit. |
| _hjAbsoluteSessionInProgress | .ordnancesurvey.co.uk | 29 minutes | Performance | Hotjar | Used by Hotjar to track user activity and interactions during a visit. |
| _ga_E1NX68ZD1R | .ordnancesurvey.co.uk | 1 year | Performance | Used by Google Analytics to identify and track users. | |
| vngage.vid | .ordnancesurvey.co.uk | Session | Functionality | Puzzel | Used by Vergic chatbot to record and measure user interaction during chat sessions. |
| _hjIncludedInSessionSample_9999 | .ordnancesurvey.co.uk | 1 minute | Performance | Hotjar | Used by Hotjar to track user activity and interactions during a visit. |
| vngage.lkvt | .ordnancesurvey.co.uk | 8 months | Functionality | Puzzel | Used by Vergic chatbot to record and measure user interaction during chat sessions. |
| vngage.id | .ordnancesurvey.co.uk | Session | Functionality | Puzzel | Used by Vergic chatbot to record and measure user interaction during chat sessions. |
| _hjSessionUser_9999 | .ordnancesurvey.co.uk | 1 year | Performance | Hotjar | Used by Hotjar to track user activity and interactions during a visit. |
| _gat | .ordnancesurvey.co.uk | 29 seconds | Performance | Used by Google Analytics to identify and track users. | |
| AMP_TOKEN | .ordnancesurvey.co.uk | 59 minutes | Functionality | Used by Google to set a token that can be used to retrieve a Client ID from AMP Client ID service. | |
| _uetsid | .ordnancesurvey.co.uk | 24 hours | Targeting/Marketing | Microsoft | Used by Bing Ads for tracking users and advertising. |
| _ga | .ordnancesurvey.co.uk | 1 year | Performance | Used by Google Analytics to identify and track users. | |
| _uetvid | .ordnancesurvey.co.uk | 1 year | Targeting/Marketing | Microsoft | Used by Bing Ads for tracking users and advertising. |
| psCurrentState | .ordnancesurvey.co.uk | Session | Functionality | Puzzel | Used by Vergic chatbot to record and measure user interaction during chat sessions. |
| ecos.dt | .ordnancesurvey.co.uk | Session | Performance | Maru | Used by Maru surveys to track user sessions. |
| CookieControl | .ordnancesurvey.co.uk | 8 months | Strictly necessary | CIVIC | Used by Cookie Control to store cookie preferences. |
| _gid | .ordnancesurvey.co.uk | 24 hours | Performance | Used by Google Analytics to store and count pageviews. | |
| _gcl_au | .ordnancesurvey.co.uk | 8 months | Targeting/Marketing | Used by Google Adwords to identify and track users. |
Last audited on: 01 September 2023