We use cookies to help improve the performance of this website by measuring web traffic, tracking user journeys and allowing users to share content using common social network channels (Facebook, Twitter etc). Most of these only contain randomly generated numbers and cannot carry viruses or install malware on your computer.

Cookies set by this website

Google Analytics

Cookies: _utma (expires after 2 years); _utmb (expires after 30 minutes); _utmc (expires when you quit your browser); _utmz (expires after 6 months)

These cookies collect information about how our visitors use this site. This data is collected anonymously, and is used to help improve this website’s functionality. For more information, see Google Analytic’s page on safeguarding your data.


Cookies: _stid (expires after 1 year); _uset (expires after 8 hours)

These cookies collect information about how our visitors share content on this site. _stid is a random unique identifier not tied to any personally identifiable information (PII), and is used to associate users with topics of interest, based upon the content they consume and share. _uset indicates when a user has been cookied so that tasks are not repeated in the next 8 hours. In the U.S., this data is used to help advertisers deliver targeted messages to users. ShareThis do not use the data outside of the U.S. at this point in time.

Managing cookies

Most Internet browsers allow users to control the acceptance of cookies via the browser’s settings. Visit allaboutcookies.org to find out how to configure these settings on a number of major browsers.

You can opt out of being tracked by Google Analytics across all websites by installing Google’s opt-out browser add-on.