To make this site work properly, we sometimes place small data files called cookies on your device.

What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.  Some Cookies are necessary for a website to operate correctly.

How do we use cookies?

We the following cookies on this site

Cookie Used by Description Expiration
PHPSESSID PHP Reference for the current PHP session Expires when the session closes / when the browser is closed
_ga Google Universal Analytics Used by Google Universal Analytics to distinguish users 2 years
_gid Google Analytics Used by Google Analytics to distinguish users 24 hours
_gat Google Analytics Used by Google Analytics to throttle the request rate 1 minute
wfvt_{Site ID} Wordfence (WordPress plugin) Wordfence cookie to group a user’s session activity Expires when the session closes
wordfence_verifiedHuman Wordfence (WordPress plugin) Wordfence cookie used to verify if the visitor is a bot or human 30 days

This is a WordPress site and by default WordPress uses cookies for authentication purposes to store session information for logged in users.  It also sets a cookie if you leave a comment on this site.

How to control cookies

You can control and/or delete cookies as you wish – for details, see You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.