Cookies are small files of letters and numbers. These files are either stored in the memory of your computer or other device such as mobile phones or tablet devices (these cookies are generally known as session cookies) or are placed on the hard drive of your device (generally known as persistent cookies).
For more details about cookies and details of how to delete and disable cookies you can visit www.aboutcookies.org and also see our section on more information and turning cookies off below.
The cookies that we use on our websites only collect anonymous information to
optimise our services, and do not collect personal information.
Please note that not all the cookies on our sites are set by us. Please see the section below on third party cookies.
The cookies on our website generally fall into the following categories: (1) functional and (2) analytical cookies.
We have set out below the main functional and analytical cookies that we use:
|Name of Cookie||What does it do?|
|ASP.NET_sessionid||We use this cookie so that we know when you are actively using our website. It enables us to temporarily store information so that it can be accessed by other pages of our website if necessary to help our website function correctly.|
We use Google Analytics to collect information about how people use our site. We do this to make sure it meets users' needs and to understand how we could make improvements.
Google Analytics stores information about which 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 personal information that could be used to identify you. We do not allow Google to use or share our analytics data.
The following table lists the type of information that is obtained via your Google Analytics cookies and used in Analytics reports.
|Functionality||Description of Cookie||Cookie Used|
|Setting the Scope of Your Site Content||Because any cookie read/write access is restricted by a combination of the
cookie name and its domain, default visitor tracking via Google Analytics is
confined to the domain of the page on which the tracking code is installed. For
the most common scenario where the tracking code is installed on a single domain
(and no other sub-domains), the
generic setup is correct. In other situations where you wish to track
content across domains or sub-domains, or restrict tracking to a smaller section
of a single domain, you use additional methods in the
|Determining Visitor Session||The Google Analytics tracking for
This description is specific to the
|Identifying Unique Visitors||Each unique browser that visits a page on your site is provided with a unique ID
|Tracking Traffic Sources & Navigation||When visitors reach your site via a search engine result, a direct link, or an
ad that links to your page, Google Analytics stores the type of referral
information in a cookie. The parameters in the cookie value string are parsed
and sent in the GIF Request (in the
|Custom Variables||You can define your own segments for reporting on your particular data. When you
|Website Optimizer||You can use Google Analytics with Google Website Optimizer (GWO), which is a tool that helps determine the most effective design for your site. When a website optimizer script executes on your page, a _utmx cookie is written to the browser and its value is sent to Google Analytics. See the Website Optimizer Help Center for more information.||
Once the cookies are set/updated on the web browser, the data they contain that
is required for reporting purposes is sent to the Analytics servers in the GIF
Request URL via the
Google Analytics sets the following cookies as described in the table below. A default configuration and use of Google Analytics sets only the first 4 cookies in the table.
||This cookie is typically written to the browser upon the first visit to your
site from that web browser. If the cookie has been deleted by the
browser operator, and the browser subsequently visits your site, a new
||2 years from set/update.|
||This cookie is used to establish and continue a user session with your site.
When a user views a page on your site, the Google 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 on your
site, 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 on your site for longer than 30
minutes. You can modify the default length of a user session with the
||30 minutes from set/update.|
||This cookie is no longer used by the
Historically, this cookie operated in conjunction with the
||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 your own site. The cookie is updated with each page view to your site.||6 months from set/update.|
||This cookie is not normally present in a default configuration of the tracking
||2 years from set/update.|
||This cookie is used by Website Optimizer and only set when the Website Optimizer tracking code is installed and correctly configured for your pages. When the optimizer script executes, this cookie stores the variation this visitor is assigned to for each experiment, so the visitor has a consistent experience on your site. See the Website Optimizer Help Center for more information.||2 years from set/update.|
Except for essential cookies, most of the cookies on our websites expire at the end of your current session on our website. However, some of our cookies have an extended lifespan which ranges from 1 day to 26 years. Some of our cookies are persistent and will never expire. Where we specify above that the cookie being used is a flash cookie, please note that flash cookies do not expire.
Find out more about cookies including how to disable/enable and delete them at the following website www.aboutcookies.org.
Generally you can't delete Flash cookies (also known as local shared objects) with browser controls, but Adobe's website at www.adobe.com provides information on how to delete or disable Flash cookies. Click here for details.