2. About cookies
2.1 A cookie is a file containing an identifier (a string of letters and numbers) that is sent by a web server to a web browser and is stored by the browser. The identifier is then sent back to the server each time the browser requests a page from the server.
2.2 Cookies may be either "persistent" cookies or "session" cookies: a persistent cookie will be stored by a web browser and will remain valid until its set expiry date, unless deleted by the user before the expiry date; a session cookie, on the other hand, will expire at the end of the user session, when the web browser is closed.
2.3 Cookies do not typically contain any information that personally identifies a user, but personal information that we store about you may be linked to the information stored in and obtained from cookies.
2.4 Cookies can be used by web servers to identity and track users as they navigate different pages on a website and identify users returning to a website.
3. Our cookies
3.1 We use session cookies and persistent cookies on our website for technical purposes essential to effective operation of the website.
4. Analytics cookies
4.1 We use Google Analytics to analyse the use of our website. To help you understand how Google Analytics cookies are used on our website, we have explained below the types of cookies Google uses to aid us in understanding how web visitors use our website.
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 & __utmc Cookies
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.
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.
Google __utmv Cookie lasts "forever". It is a persistent cookie. It is used for segmentation, data experimentation and the __utmv works hand in hand with the __utmz cookie to improve cookie targeting capabilities.
For more information, click here for an overview of privacy at Google.
5. Third party cookies
5.1 Our website also uses third party cookies through social media such as Youtube, Facebook, Twitter and Linkedin. We do not control the settings of some of these cookies so for more information please visit the relevant third-party website.
5.2 We do not publish interest-based advertisements on this website). You can view, delete or add interest categories associated with your browser by visiting: http://www.google.com/settings/ads/.
You can also opt out of the AdSense partner network cookie using those settings or using the NAI's (Network Advertising Initiative's) multi-cookie opt-out mechanism at: http://www.networkadvertising.org/choices/.
6. Blocking cookies
6.1 Most browsers allow you to refuse to accept cookies; for example:
(a) in Internet Explorer (version 10) you can block cookies using the cookie handling override settings available by clicking "Tools", "Internet Options", "Privacy" and then "Advanced";
(b) in Firefox (version 24) you can block all cookies by clicking "Tools", "Options", "Privacy", selecting "Use custom settings for history" from the drop-down menu, and unticking "Accept cookies from sites"; and
(c) in Chrome (version 29), you can block all cookies by accessing the "Customise and control" menu, and clicking "Settings", "Show advanced settings" and "Content settings", and then selecting "Block sites from setting any data" under the "Cookies" heading.
6.2 Blocking all cookies will have a negative impact upon the usability of many websites.
6.3 If you block cookies, you will not be able to use all the features on our website.
7. Deleting cookies
7.1 You can delete cookies already stored on your computer; for example:
(a) In Internet Explorer (version 10), you must manually delete cookie files (you can find instructions for doing so at http://support.microsoft.com/kb/278835);
(b) In Firefox (version 24), you can delete cookies by clicking "Tools", "Options" and "Privacy", then selecting "Use custom settings for history", clicking "Show Cookies", and then clicking "Remove All Cookies"; and
(c) In Chrome (version 29), you can delete all cookies by accessing the "Customise and control" menu, and clicking "Settings", "Show advanced settings" and "Clear browsing data", and then selecting "Delete cookies and other site and plug-in data" before clicking "Clear browsing data".
7.2 Deleting cookies will have a negative impact on the usability of many websites.
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