Cookies explained

A cookie is a small amount of data, which often includes a unique identifier that is sent to your computer or mobile phone browser from a website’s computer and is stored on your computer’s or mobile phone’s hard drive. Each website can send its own cookie to your browser if your browser’s preferences allow it, which the site can then access when you visit it again to track online traffic flows, for example. A website cannot access cookies sent by other websites.

How this website uses cookies

We use cookies to make sure our website work effectively and to improve your user experience on it. Information supplied by cookies can help us work out how you use our site; for example, which pages you look at, and whether you experience any errors. We also use cookies to remember your preferences and understand how you interact with our site so that we can enhance your navigation experience.

Below is a list of the cookies that might be used on our website


Cookie Type Description
DYNSRV session This cookie is added by our load balancer to track which web server to send the visitor to. Its purpose is to improve the performance of the website.
_ga persistent This cookie name is asssociated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default it is set to expire after 2 years, although this is customisable by website owners.
_gat persistent This cookie name is associated with Google Universal Analytics, according to documentation it is used to throttle the request rate - limiting the collection of data on high traffic sites. It expires after 10 minutes.
_gid persistent This cookie is associated with Google Universal Analytics and is used to distinguish users.
lang persistent This cookie is associated with Twitter and its language settings.

Changing cookie settings in your web browser

Each web browser has its own way of managing cookies. You can block or remove cookies yourself by altering the settings of your browser to block cookies or to send a warning notice before a cookie is stored on your computer. These changes will apply to all websites that you visit (unless you choose to block cookies from particular sites).

You should be aware that any preferences will be lost if you delete cookies. If you block cookies completely, many websites will not work properly and some functionality on these websites will not work at all. We do not recommend turning cookies off when using our websites for these reasons.

To find out more, consult your browser’s help function. We’ve provided links to the relevant pages for some common browsers.

Managing and deleting cookies

Managing analytics cookies

Our website uses analytics tracking, and you can opt out of these cookies by clicking on the links shown below.

Please note that this will take you to the relevant third party’s website, and will generate a ‘no thanks’ cookie, which will stop those third parties from setting any further cookies; these changes will then apply to all websites that you visit.

Note that disabling analytics cookies prevents us from being able to collect information on how visitors use our website, which in turn limits our ability to improve the online experience.

For further information

You can find further information on disabling cookies at the All About Cookies website.