Cookie policy

A cookie is a small piece of information that is placed on your computer, tablet or phone when you visit certain websites, including this one.

These cookies help distinguish you from other users - which makes the site work properly - and to monitor the health of the site. You can find out more about cookies at

This site has very few cookies, and disables IP address capture in Google Analalytics.

If you continue to use our site, we presume that you are happy to receive all its cookies. If not, most browsers allow you to turn off cookies; to do this, check the “help” menu on your browser, but note that switching off cookies may affect site operation and you may not be able to access some parts of our site.

If you have any questions or comments regarding this cookies policy, please contact us.

List of cookies

Name Description

Used by the CloudFlare website security service to identify individual clients behind a shared IP address and apply security settings on a per-client basis. Allows CloudFlare to detect and block security threats while allowing genuine traffic through.  It does not correspond to any user ID on a web application, and does not store any personally identifiable information. Expires after 1 year.


Google Analytics cookie . 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. Set to expire after 2 years.

IP address capture in Google Analaytics has been disabled for this site.

_gat Google Analytics cookie. Used to throttle request rate. Set to expire after 1 minute.
_gid Google Analytics cookie. Used to distinguish users. Set to expire in 24 hours.
YouTube This site uses YouTube to display videos. These videos are embedded onto this site, but YouTube may use cookies associated with their service.
Twitter This site uses a Twitter feed. This is embedded onto this site, but Twitter may use cookies associated with their service.