Cookie Policy

June 2023


We use necessary cookies (which are small text files placed on your computer to obtain information about your general internet usage) to make our site work. We'd also like to set optional analytics cookies to help us improve as set out below. We won't set optional cookies unless you enable them.

Use of optional analytics cookies

We would like to use cookies on this site as part of the Google Analytics software that runs on the host server. This gathers anonymous analysis such as time/date of visit and the pages viewed.
We use cookies to for analytical purposes to:

  • carry out research and statistical analysis to help improve our content, products and services and to help us better understand our customer requirements and interests including estimating our audience size and usage pattern; and
  • speed up your searches and make your online experience more efficient and enjoyable.

We will need your consent in order to use Google Analytics cookies on this website.


There is a notice that appears at the bottom of the screen on visiting the site for the first time. By clicking ‘Acknowledge and Accept Cookies’ and continuing to use this website after this notification has been displayed to you, you have consented to our use of cookies for the purposes described in this policy.

Description of cookies

The table below provides some information on the cookies which we use on our website. We use these cookies for the reasons described above.

Cookie name What it does How long it lasts
Google Analytics - UTMZ Analytics 6 months
Google Analytics - UTMT Analytics 10 minutes
Google Analytics - UTMC Analytics Session
Google Analytics - UTMC Analytics 30 minutes
Google Analytics - UTMC Analytics 2 years
Piwik Session analytics by Cloudflare 30 minutes
Piwik Tracking analytics by Cloudflare 2 years
Cloudflare (cfduid) Used to identify individual visitors behind a shared IP address and apply security settings on a per-visitor basis. For example, if the visitor is in a coffee shop where there are a number of infected machines, but the specific visitor’s machine is trusted (e.g. because they’ve completed a challenge within a Challenge Passage period), the cookie allows us to identify that visitor and not challenge them again. It does not correspond to any user ID in your web application, and does not store any personally identifiable information. 1 year
ASP.NET_SessionId Stores a generated ID used for carrying data across pages. The ID does not store any personal data, and is purely a randomised string of text. End of session
cookieAccept To record your acceptance of Cookies when using our website 1 year


Third-party cookies

There are also a number of third party cookies generated by video content on our site, which may be hosted via Vimeo and/or YouTube. The names, purpose, and length of these cookies are controlled by a third party, and therefore could change at any point. 

If consent has not been given, these cookies will not be generated.

If you have accepted cookie previously, however, previously created cookies by this third party will remain until they are removed manually via your browser.

For more information on the YouTube cookie policy, visit

For more information on the Vimeo cookie policy, visit

How to turn off cookies

You may refuse to accept cookies either by clicking the 'Reject All' button on the banner that appears when first visiting our site, or by activating the setting on your browser which allows you to refuse the setting of cookies. You can also toggle cookies on or off using the button below. Please note, however, that by disabling cookies you may be unable to access certain parts of our site. By default, cookies are disabled until consent is given.

For further information about cookies and how to disable them please go to the Information Commissioner's webpage on cookies: