Cookie Policy

Use of ‘cookies’

A ‘cookie’ is a small text file that is stored on your device by websites that you visit. They are used to remember your interaction with the website. Their purpose is usually functional (e.g. to enhance your experience of the website) or statistical (e.g. to provide the website owner with the number of unique visitors to a website, or the most popular pages on a particular site, etc.).

Most browsers automatically accept cookies, but you can usually refuse or selectively accept cookies by adjusting the preferences in your browser. If you turn cookies off, there may be some features of our site that will not be available to you and some web pages may not display properly.

You can find more information about managing cookies at

Our cookie list is intended to provide you with an understanding of the nature of the cookies used on this site. This information may be updated from time to time. It was correct as of the 30 May 2013.

Cookie List:

Cookie Name Purpose More information
Google Analytics _utma This Cookie is used to identify unique visitors to the site so that we may see how many come to this site over a period of time. Click here to see an overview of Google’s privacy precautions for Google Analytics
_utmb This cookie is used to determine the visitor session times on our site and is updated each time you visit a new page. If there is no existing cookie, a new one is created.
_utmc This cookie is used with __utmb in order to determine visitor sessions. It determines whether a new session should be created based on whether or not you have previously closed your browser or cleared your cookies before coming back to the site.
_utmz This cookie is used to note the type of referral used by each visitor to arrive at our site, for example if the user has come directly to the site or reached it via a search engine
Internal Cookie Consent cookieConsent This cookie is set by Quortus to record when you have acknowledged the cookie information banner, so that it will not displayed again when viewing the site using the same machine and browser (unless you clear your cookies, or one year passes, whichever comes first).  
X-Mapping cookie X-Mapping-dccahcdn This cookie is set by Quortus to allow us to serve content smoothly between multiple underlying servers. This ensures that there is a seamless user experience between these servers.  

Cookies set by third parties:

Cookie Name Purpose More information



This cookie allows AddThis to determine how frequently an AddThis user visits their service.

Click here to see an overview of privacy at AddThis

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