How to control and delete cookies
Cookies are small text files that web servers give to browsers to store on users’ machines. They enable the website to recognise requests as coming from the same browser and they can be essential for the operation of an application, but they can also be used to track user behaviour.
You can block or restrict the use of cookies through your browser settings. For more information on cookies, their use and how to block them, visit you may want to visit www.aboutcookies.org.
Managing cookies
In your web browser you can control which types of cookies you allow. You can turn cookies on or off using your browser’s settings. You can also delete cookies and clear your browser’s cache (history).
See the following links describing how to do this on some popular browsers:
Please see below for a list of cookies this website uses:
__utma Cookie
A persistent cookie - remains on a computer, unless it expires or the cookie cache is cleared. It tracks visitors. Metrics associated with the Google __utma cookie include: first visit (unique visit), last visit (returning visit). This also includes Days and Visits to purchase calculations which afford ecommerce websites with data intelligence around purchasing sales funnels.
__utmb Cookie and __utmc Cookie
These cookies work in tandem to calculate visit length. Google __utmb cookie demarks the exact arrival time, then Google __utmc registers the precise exit time of the user.
Because __utmb counts entrance visits, it is a session cookie, and expires at the end of the session, e.g. when the user leaves the page. A timestamp of 30 minutes must pass before Google cookie __utmc expires. Given__utmc cannot tell if a browser or website session ends. Therefore, if no new page view is recorded in 30 minutes the cookie is expired.
This is a standard 'grace period' in web analytics. Ominture and WebTrends among many others follow the same procedure.
__utmz Cookie
Cookie __utmz monitors the HTTP Referrer and notes where a visitor arrived from, with the referrer siloed into type (Search engine (organic or cpc), direct, social and unaccounted). From the HTTP Referrer the __utmz Cookie also registers, what keyword generated the visit plus geolocation data.
This cookie lasts six months. In tracking terms this Cookie is perhaps the most important as it will tell you about your traffic and help with conversion information such as what source / medium / keyword to attribute for a Goal Conversion.
__utmv Cookie
Google __utmv Cookie lasts "forever". It is a persistant cookie. It is used for segmentation, data experimentation and the __utmv works hand in hand with the __utmz cookie to improve cookie targeting capabilities.
Do not track
You can use the "Do Not Track" option in your browser (if available) to prevent use of cookies by this website.