Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work more efficiently, as well as to provide information to the owners of the site. The table below explains the cookies we use and why.

Cookie Name Purpose
Cookie banner has_js This cookie is used to help with determining if your browser settings are correct to allow the site to be displayed and is necessary due to the programming languages used. This cookie is set on arrival to the site by default, but expires once your session on our site is finished.
3rd Party Google cookies PREF NID OGPC When using certain areas on our site Google will place a cookie on your computer. The _PREF cookie is used to store your preferences and other information, in particular your preferred language (e.g. English), how many search results you wish to have shown per page (e.g. 10 or 20), and whether or not you wish to have Google’s SafeSearch filter turned on. These cookies can also assist you in changing text size, font and other parts of web pages that you can personalize.
Google also uses cookies like PREF, along with NID and SID, to help customize ads on Google properties, like Google Search. For example, they use such cookies to remember your most recent searches, your previous interactions with an advertiser’s ads or search results, and your visits to an advertiser’s website. This helps Google to show you customized ads.
These cookies are set only when you visit the Shares Information page of our site and expire at different time – PREF after 2 years, NID after 6 months, and OGPC after just one month.
Click here for an overview of privacy at Google.
_ga _gat Google also places these two cookies on your machine to help monitor and track users of our website. The _ga cookie is used to distinguish individual users from each other and expires after 2 years, whereas the _gat cookie is used to help throttle, or regulate demand between, users of the site and expires after 10 minutes.

How do I change my cookie settings?

Most web browsers allow some control of most cookies through the browser settings. To find out more about cookies, including how to see what cookies have been set and how to manage and delete them, visit or To opt out of being tracked by Google Analytics across all websites visit