Cookies are small text files sent to your computer or mobile device. They allow you to navigate a website efficiently and perform functions that would not otherwise be possible. They also provide information to the developers so that improvements to the website can be made. DataMapWales cookies are not used to identify you personally. The cookies we use on our site are:

Cookie	Purpose	Expires
_ga (.llyw.cymru)	This cookie is used to find out how visitors use our site. We use the information to help us improve the site. The cookie collects information in an anonymous form, including demographic information, the number of visitors to the site, whether they have visited before and the pages they visit.	2 years
_ga_N6BEMK6XC0 (.llyw.cymru)	This cookie is used to used to persist the Google Analytics session state.	2 years
_gat_gtag_UA_23575705_34 (.llyw.cymru)	This cookie used to throttle the request rate, limiting the collection of data on high traffic sites.	1 minute
_gid (.llyw.cymru)	This cookie is used to determine unique visits to our site.	24 hours
admin_area	Used for Active Travel users to remember which Admin Area was selected last from related drop downs and decide which Admin Areas is displayed and selected for the user by default.	2 years
cookie_consent	This cookie tracks which groups of cookies the user has accepted or denied.	1 year
csrftoken	Used to improve the security of the site (to prevent an imposter making unauthorised data requests, write data or upload files to the server).	1 year
GS_FLOW_CONTROL	Used by the map interface to remember the layer/options selected and the last zoom position for better map browsing.	When the session ends
JSESSIONID	Used to remember you and keep you signed into the website and to prevent you from having to re-type your username and password.	When the session ends
Local storage	Used by the catalogue to streamline pop-up preferences.	24 hours
Portal	Takes a record of the selections made so that the catalogue can work more efficiently.	24 hours

Web browsers allow some control of cookies through browser settings. To find out more about cookies and how to manage them, visit www.allaboutcookies.org.