Privacy Policy


This policy explains what information the University of Cambridge (“we” or “us) gathers when a visitor or registered user (“you” or “user”) visits the Underground Mathematics website (the “Site”), and explains how that information is used.

If you are under 18 years of age, please be sure to read the Privacy Policy with your parent or guardian and ask questions about things you do not understand.

We may update this Privacy Policy from time to time.


The Site uses cookies, which are small pieces of information that are issued to your computer or other internet-enabled device when you visit the Site. Cookies are stored by your browser and hard drive and are used to distinguish you from other visitors to the Site.

In addition, the Site uses Google Analytics to help us analyse Site usage and to improve it. To support this, selected information about your interaction with the Site is sent to Google for them to analyse on our behalf. For more information about Google Analytics see

For more details about cookies and the cookies we use (including Google Analytics cookies), see our separate cookie policy.

Data Collected

In common with most websites, the Site automatically logs certain information about every request made of it (see below for more details). This information is used for system administration, for bug tracking, and for producing usage statistics. Automatically logged data may be kept for up to two years.

We may collect and process the following data about you:

  • Information you choose to provide by filling in forms provided on the Site for a specific purpose. By supplying this information you are consenting to us holding and using it for the purposes for which it was provided.
  • If you contact us (online or offline).
  • Information collected by us when you interact with the Site (see Cookie Policy) or when you correspond with us by email communication.

Logged data

The following data is automatically collected for each request:

  • The name or network address of the computer making the request. Note that under some (but not all) circumstances it may be possible to infer from this the identity of the person making the request. Note also that the data recorded may be that of a web proxy rather than that of the originating client.
  • The username, when known during authenticated (logged in) access to the site
  • The date and time of connection
  • The HTTP request, which contains the identification of the document requested
  • The status code of the request (success or failure etc.)
  • The number of data bytes sent in response
  • The contents of the HTTP Referrer header supplied by the browser
  • The content of the HTTP User-Agent header supplied by the browser

Logging of additional data may be enabled temporarily from time to time for specific purposes.

In addition, the computers on which the web site is hosted keep records of attempts (authorised and unauthorised) to use them for purposes other than access to the web server. This data typically includes:

  • the date and time of the attempt,

  • the service to which access was attempted,

  • the name or network address of the computer making the connection,

  • and may include details of what was done or was attempted to be done.

Disclosure and uses of personal information

We use information held about you in the following ways:

  • to ensure that content from the Site is presented in the most effective manner for you and for your computer or device by gathering aggregate information about our users using it to analyse the effectiveness and popularity of the Site and to help with the strategic development of the Site
  • to allow you to participate in interactive features of any services of the Site, when you choose to do so to contact you with more information about the Site and any of its features or services, usually by email. You may unsubscribe from being contacted for these purposes at any time.
  • to invite you to participate in surveys and ask for your views on our Site and its services via online and offline surveys and discussion forums. You may unsubscribe from being contacted for these purposes at any time.

We may disclose your personal information to third parties in the following circumstances:

  • if we have obtained your consent to do so
  • when we are required or authorised by law, court order, regulatory or governmental authority to disclose your personal data
  • if required to protect the rights, property or safety of the University of Cambridge, its members or others
  • with our service providers (including, for example, organisations that we have contracted with for project assessment purposes).

We will show your username (and school if applicable) on any content you submit to the Site (including discussions forums or blogs or other interactive service).

We will not allow unrelated third parties to use your personal information for marketing without your consent.

We ask that you accept and agree that this may include the transfer of your personal information to other countries around the world, including countries outside of the European Economic Area.

Relevant subsets of this data may be passed to computer security teams as part of investigations of computer misuse involving this site or other computing equipment in the University of Cambridge.

Links to other websites

The Site contains links to and from third-party websites. This policy only covers use of cookies on the Site. You should consult privacy and cookie policies on third-party websites before you submit any personal data. We are not responsible for any cookies that may be set by third party websites that are linked to from pages on the Site.

Access to personal data

Where we use third parties to process personal information, we require them to ensure the safety of your information.

Any personal information that you voluntarily post on a public area of the Site such as a bulletin board or discussion forum or another interactive service requiring registration may be collected and used by others. Please be careful what personal information you disclose in this way. You understand that we cannot control the actions of other users.

For the purpose of the UK Data Protection Act 1998, the ‘Data Controller’ for the processing of data collected by the Site is the University of Cambridge, and the point of contact for subject access requests is the University Data Protection Officer (The Old Schools, Trinity Lane, Cambridge CB2 1TN, tel. 01223 332320, fax 01223 332332, email

The University of Cambridge is also Data Controller in respect of any personal data served as content by the Site.

Last updated: 29 March 2016