Information about our use of cookies

Our website uses cookies to distinguish you from other users of our website. This helps us to provide you with a good experience when you browse our website and also allows us to improve our site.

A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer's hard drive.

The cookies we use are "analytical" cookies. They allow us to:

  • recognise and count the number of visitors
  • see how visitors move around the site when they are using it
  • understand the efficiency of campaigns

This all helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily. The cookies we use are set out below:

Cookie Name




Unique ID used to authenticate the user

30 days


Used to count visits to black grass section

365 days


Used to identify a users current session

until end of current session


Set to let Hotjar know whether that visitor is included in the sample which is used to generate funnels

Session-based cookies that are deleted when you leave the site.


We use AdRoll to provide interest-based adverts to show our ads on other websites

6 years


cookie is a unique ID used for Google analytics to help us improve the website

2 years


cookie is a unique ID for a page and is used for Google analytics to help us improve the website

2 days


Used by Visual Web Optimizer which helps site owners measure the performance of different versions of web pages

1 day

You block cookies by activating the setting on your browser that allows you to refuse the setting of all or some cookies. However, if you use your browser settings to block all cookies (including essential cookies) you may not be able to access all or parts of our site. Unless you have adjusted your browser setting so that it will refuse cookies, our system will issue cookies as soon you visit our site.You can opt-out of the analytical cookies referred to above, by clicking here.Except for essential cookies, all cookies will expire after six rolling months.