What are cookies?
How are cookies used on this website?
What are analytics?
Analytics cookies help us to understand how users engage with our website. An example is counting the number of different people coming to our website, rather than the total number of times the site is used. Without a cookie, if you visited the website once each week for three weeks we would count you as three separate users. Subsequently we would find it difficult to analyse how well our website was performing and if needed, improve it.
The analytics cookies explained
__utma - lifespan of 2 years
This cookie is typically written to the browser upon your first visit from that web browser. If the cookie has been deleted by the browser operator, and the browser subsequently visits your site, a new __utma cookie is written with a different unique ID. This cookie is used to determine unique visitors to your site and it is updated with each page view. Additionally, this cookie is provided with a unique ID that ensures both the validity and accessibility of the cookie as an extra security measure.
__utmb - lifespan of 30 minutes
This cookie is used to establish and continue a user session. When a user views a page, the analytics code attempts to update this cookie. If it does not find the cookie, a new one is written and a new session is established. Each time a user visits a different page, this cookie is updated to expire in 30 minutes, thus continuing a single session for as long as user activity continues within 30-minute intervals. This cookie expires when a user pauses on a page for longer than 30 minutes.
__utmz - updated with each page view
This cookie stores the type of referral used by the visitor to reach your site, whether via a direct method, a referring link, a website search, or a campaign such as an ad or an email link. It is used to calculate search engine traffic, ad campaigns and page navigation within this site.