Use of cookies by the ICO

Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work more efficiently, as well as to provide information to the owners of the site. The table below explains the cookies we use and why.

Cookie Name Purpose
Cookie preference

CookieControl

This cookie is used to remember a user’s choice about cookies on ico.org.uk. Where users have previously indicated a preference, that user’s preference will be stored in this cookie.

Universal Analytics (Google)

_ga
_gali
_gat
_gid

These cookies are used to collect information about how visitors use our website. We use the information to compile reports and to help us improve the website. The cookies collect information in a way that does not directly identify anyone, including the number of visitors to the website and blog, where visitors have come to the website from and the pages they visited.
Read Google's overview of privacy and safeguarding data

Application firewall cookie __zjc*

This cookie is set by a third-party web application firewall from Dyn to help maintain the security and performance of our website. Some traffic may receive a challenge to check if it is genuine and if it is, a cookie is set so the user isn’t challenged again.

Security breach notification form cookie          ASP.NET_SessionId  

This cookie is essential for the breach notification form – the form that public electronic communications service providers use to notify the ICO of a security breach – to operate. It is set only for those people using the form. This cookie is deleted when you close your browser.
Visit the Microsoft website

YouTube cookies

PREF*
VSC*
VISITOR_INFO1_LIVE*
remote_sid*

We embed videos from our official YouTube channel using YouTube’s privacy-enhanced mode. This mode may set cookies on your computer once you click on the YouTube video player, but YouTube will not store personally-identifiable cookie information for playbacks of embedded videos using the privacy-enhanced mode.
Read more at YouTube’s embedding videos information page.

PREF - * Expires after eight months
VSC - * expires at the end of your session
VISITOR_INFO1_LIVE - *expires after eight months
remote_sid - * expires at the end of your session

BrowseAloud cookies

_ba*
rwebooks-x
rwebooks-y

These cookies are set for customers who use the Browsealoud service, to read aloud and translate content on our site. The cookies enable the service to function by storing the user’s selections and preferences as they move around the site, including their settings for the tool, any language selection they might have made, the position of the toolbar, and their acceptance of the disclaimers.

Vimeo cookies

player

vuid

We embed videos from our official Vimeo channel. When you press play Vimeo will drop third party cookies to enable the the video to play and to collect analytics data such as how long a viewer has watched the video. These cookies do not track individuals. 

How do I change my cookie settings?

You can change your cookie preferences at any time by clicking on the ‘C’ icon. You can then adjust the available sliders to ‘On’ or ‘Off’, then clicking ‘Save and close’. You may need to refresh your page for your settings to take effect.

Alternatively, most web browsers allow some control of most cookies through the browser settings. To find out more about cookies, including how to see what cookies have been set, visit www.aboutcookies.org or www.allaboutcookies.org.

Find out how to manage cookies on popular browsers:

To find information relating to other browsers, visit the browser developer's website.

To opt out of being tracked by Google Analytics across all websites, visit http://tools.google.com/dlpage/gaoptout.