Cookie Policy

To make this site simpler, we sometimes place small data files on your computer. These are known as cookies.
They improve things for visitors to this website by:

  • remembering settings, so you don’t have to keep re-entering them whenever you visit a new page
  • remembering information you’ve given so you don’t need to keep entering it
  • measuring how you use the website so we can make sure it meets your needs

Our cookies aren’t used to identify you personally. They’re just here to make the site work better for you. Indeed, you can manage and/or delete these small files as you wish.

To learn more about cookies and how to manage them, visit Or please read on to find out more about how and where we use cookies.

How we use cookies

We use cookies in several places – we’ve listed each of them below with more details about why we use them and how long they will last.

Measuring website usage (Google Analytics)

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 are set by Google Analytics:

Name Typical Content Expires
_utma Random number 2 years
_utmb Random number 30 minutes
_utmc Random number when you close your browser
_utmx Random number 2 years
_utmxx Random number 2 years
_utmz Random number and information on how the site was reached (e.g. direct or via a link, organic search or paid search) 6 months

Social Networking (Twitter)

This site uses Twitter to allow our users to share content via the social network. We don’t actually set this cookie as it’s provided by Twitter to enable you to share our content without having to login to Twitter each and every time.

Name Typical Content Expires
guest_id Random number 2 Years
_twitter_sess Random number when you close your browser
k Random number when you close your browser

Remembering your Blog settings

This cookie remembers the details you enter if you reply to a blog post to save you time if you are a regular visitor. If you have not ever commented on a blog post then this cookie won’t have been set.

Name Typical Content Expires
wfvt_-512170469 Random number Immediately