Cookies are files, often including unique identifiers, that are sent by web servers to web browsers, and which may then be sent back to the server each time the browser requests a page from the server.
Cookies can be used by web servers to identity and track users as they navigate different pages on a website, and to identify users returning to a website.
Cookies may be either “persistent” cookies or “session” cookies. A persistent cookie consists of a text file sent by a web server to a web browser, which will be stored by the 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.
COOKIES ON THIS WEBSITE
Cookies on this website use the names
The cookies named __utma through __utmz come from websites that use Google Analytics, which primarily uses it to track visits.
Cookies do not contain any information that personally identifies you, but personal information that we store about you may be linked, by us, to the information stored in and obtained from cookies.
We may use the information we obtain from your use of our cookies for the following purposes:
(1) to track you as you navigate our website;
(2) to analyse the use of our website;
__utmz stores where a visitor came from (search engine, search keyword, link)
__utma stores each user’s amount of visits, and the time of the first visit, the previous visit, and the current visit (presumably partly for double checking of this information).
__utmb and __utmc are used to check approximately how long you stay on a site: when a visit starts, and approximately ends (c expires quickly). If you look at cookie state changes (e.g. using firecookie), you will see these change regularly.
THIRD PARTY COOKIES
This website does not send third-party cookies.
Most browsers allow you to refuse to accept cookies.
In Internet Explorer you can refuse all cookies by clicking “Tools”, “Internet Options”, “Privacy”, and selecting “Block all cookies” using the sliding selector;
In Firefox you can block all cookies by clicking “Tools”, “Options”, and un-checking “Accept cookies from sites” in the “Privacy” box.
In Safari you can block cookies by selecting Private browsing
Blocking all cookies will, however, have a negative impact upon the usability of many websites.
You can also delete cookies already stored on your computer:
In Internet Explorer, you must manually delete cookie files;
In Firefox, you can delete cookies by, first ensuring that cookies are to be deleted when you “clear private data” (this setting can be changed by clicking “Tools”, “Options” and “Settings” in the “Private Data” box) and then clicking “Clear private data” in the “Tools” menu.
In Safari you can delete cookies by selecting preferences, then privacy, then details and then remove all.
Obviously, doing this may have a negative impact on the usability of many websites.