Cookie Policy - How and why we use cookies

Cookies are your friends. We use them to make using our site even better.

When we provide services, we want to make them easy, useful and reliable. This sometimes involves placing small amounts of information on your device, for example, computer or mobile phone. These include small files known as cookies. They cannot be used to identify you personally.
These pieces of information are used to improve services for you through, for example:
  • Enabling a service to recognise your device so you don’t have to give the same information during one task.
  • Recognising that you have already given a username and password so you don’t need to enter it for every web page requested.
  • Measuring how many people are using services, so they can be made easier to use and that there is enough capacity to ensure they are fast.
  • Measuring the performance of and delivering targeted display advertising campaigns.  You can manage these small files yourself and learn more about them from
Cookies for measuring website usage

There are several Google Analytics cookies that are used within this site.  These are called: "_utma", "_utmb", "_utmc", "_utmv", "_utmd", "_utmz".

We use Google Analytics to collect information about how people use this site. We do this to make sure it’s meeting its users’ needs and to understand how we could do it better.

Google Analytics stores information about what pages you visit, how long you are on the site, how you got here and what you click on. We do not collect or store your personal information (e.g. your name or address) so this information cannot be used to identify who you are. We do not allow Google to use or share our analytics data.
The following cookies each have their own use with Google Analytics. 
The cookie named "_utma" stores each user’s number of visits, time of the first visit, the previous visit and the current visit.
"_utmb" and "_utmc" checks how long a visitor stays on the site: when a visit starts and ends
"_utmz" tracks where a visitor came from (search engine, search keyword, link)
"_utmv" and "_utmd" track visitor journeys through the site and classifies them into groups Duration of cookies:_utma expires two years after your last visit to this site
"_utmb" expires 30 minutes after your visit, or after 30 minutes of inactivity
"_utmc" expires at the end of a session (when you close your browser)
"_utmz" expires six months after it was last set
"_utmv" (not set) expires immediately
"_utmd" (not set) expires immediately 

Users may opt out of providing anonymous data to Google Analytics at any time by following instructions at

Our website utilizes the Conversion Tracking Pixel service of Facebook Inc., 1601 S. California Ave., Palo Alto, CA 94304, USA (“Facebook”). This tool allows us to follow the actions of users after they are redirected to a provider’s website by clicking on a Facebook advertisement. We are thus able to record the efficacy of Facebook advertisements for statistical and market research purposes. The collected data remain anonymous. This means that we cannot see the personal data of any individual user. However, the collected data are saved and processed by Facebook. We are informing you on this matter according to our information at this time. Facebook is able to connect the data with your Facebook account and use the data for their own advertising purposes, in accordance with Facebook’s Data Use Policy found here. Facebook Conversion Tracking also allows Facebook and its partners to show you advertisements on and outside Facebook. In addition, a cookie will be saved onto your computer for these purposes. Only users over 13 years of age may give their permission. If you are younger than this age, please consult your legal guardians. Please click here if you would like to revoke your permission.