Cookie and similar technologies policy

This statement explains how we use cookies on the University’s main web pages (i.e. those in and Please note, however, that most units of the University run and maintain their own websites on the domain (these will be identified as or or These sites may carry their own cookie statement or provide additional information relating to their activities, which will supersede or supplement this cookie statement. For information about what types of personal information will be gathered when you visit the website, and how this information will be used, please see our privacy policy.

How we use cookies

All of our web pages use “cookies”. A cookie is a small file of letters and numbers that we place on your computer or mobile device if you agree to allow cookies to be set. These cookies allow us to distinguish you from other users of our website, which helps us to provide you with a good experience when you browse our website and enables us to improve our website. The site also uses both 1st-party and 3rd-party cookies; third-party cookies may be used exclusively to anonymously relate advertising interactions across the web with activity on the website

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 and how to manage and delete them please visit

Types of cookies we use

We use the following types of cookies:

  • strictly necessary cookies – these are essential in to enable you to move around the websites and use their features. Without these cookies the services you have asked for, such as registering for an account, cannot be provided.
  • analytics cookies – these cookies collect information about how visitors use a website, for instance which pages visitors go to most often. We use this information to improve our websites, to help understand the impact of advertising on website usage and to aid us in investigating problems raised by visitors. These cookies do not collect information that identifies a visitor.
  • functionality cookies – these cookies allow the website to remember choices you make and provide more personal features. For instance, a functional cookie can be used to remember the volume level you prefer to use when watching videos on our websites. The information these cookies collect may be anonymised and they cannot track your browsing activity on other websites.
  • targeting cookies – these cookies are used to deliver adverts more relevant to you and your interests. They collect information about your browsing habits but do not collect or use information that identifies a visitor. Targeting cookies are linked to services provided by third parties, such as ‘like’ and ‘share’ buttons and advertisements. We use targeting cookies to send third parties information on your visit so that they can make their advertising more relevant to you when you visit their websites. To opt out of targeting visit

Specific cookies we use

Cookies may be set either by the (“first party cookies”), or by a third party website (“third party cookies”). The tables below identify the cookies we use and explain the purposes for which they are used.

However, we continue to collect information about third-party cookies and the tables below are based on the work completed to date. Accordingly, we may update the information contained in this section from time to time. Additionally, some cookies may be set from time to time by feeds from third party websites that we make available on our sites.

First party cookies

Cookie name Expiration time Description
_ga_xxx 2 years Used to distinguish users
_gat 10 minutes Used to throttle request rate
_ _utma 2 year from set/update Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to google analytics
_ _utma 10 minutes Used to throttle request rate
_ _utmb 30 mins from set/update Used to determine new sessions/visits. The cookie is created when the javascript library executes and no existing __utmb cookies exists. The cookie is updated every time data is sent to google analytics
_ _utmc End of browser session Not used in ga.js. Set for interoperability with urchin.js. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether the user was in a new session/visit
_ _utmz 6 months from set/update Stores the session source or campaign that explains how the user reached your site. This cookie is created when the javascript library executes and is updated every time data is sent to google analytics
_ _utmy 2 years from set/update Used to store visitor level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to google analytics.

Third party cookies

Provider Purpose Further info
Doubleclick (Google company) DoubleClick allows the advertising network to identify users across multiple sessions purely for advertising purposes. This technology may be used to target ads based on user behaviour, report on advertising campaign performance, and to control how often certain ads are seen by users. DoubleClick (Google): What is it and what does it do? – The Guardian
RadiumOne RadiumOne provides the link shortening service. They also make use of cookies to record information about the website or content you have chosen to share. This information is used to identify the interests of users who share Post links and users who click on these links in order to deliver targeted advertising. RadiumOne – use of cookies (see sections B and C)

RadiumOne – terms and conditions

How to refuse RadiumOne advertising cookies

Changes to our cookie statement

Any changes we may make to our cookie statement in the future will be posted on this page.


Any queries or concerns about the use of cookies on this website should be sent by email to or write to:

University Data Protection Officer
Corporate Information & Computing Services
10-12 Brunswick Street
S10 2FN