A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer’s hard drive.
We use the following cookies:
- Strictly necessary cookies. These are cookies that are required for the operation of our website. They include, for example, cookies that enable you to log into secure areas of our website, use a shopping cart or make use of e-billing services.
- Analytical/performance cookies. They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. This helps us to improve the way our website works, for example, by ensuring that users are finding what they are looking for easily.
- Functionality cookies. These are used to recognise you when you return to our website. This enables us to personalise our content for you, greet you by name and remember your preferences (for example, your choice of language or region).
- Targeting cookies. These cookies record your visit to our website, the pages you have visited and the links you have followed. We will use this information to make our website and the advertising displayed on it more relevant to your interests. We may also share this information with third parties for this purpose.
You can find more information about the individual cookies we use and the purposes for which we use them in the table below:
|__utma||This is typically written to the browser upon the first visit to our site 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 our site and it is updated with each page view. Additionally, this cookie is provided with a unique ID that Google Analytics uses to ensure both the validity and accessibility of the cookie as an extra security measure.||2 years from set/update.|
|__utmb||This is used to establish and continue a user session with our site. When a user views a page on our 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 our 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 our site for longer than 30 minutes.||30 minutes from set/update.|
|__utmc||This is no longer used by the ga.js tracking code to determine session status. Historically, this cookie operated in conjunction with the __utmb cookie to determine whether or not to establish a new session for the user. For backwards compatibility purposes with sites still using the urchin.js tracking code, this cookie will continue to be written and will expire when the user exits the browser.||Not set.|
|__utmz||This stores the type of referral used by a visitor to reach our 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 our site. The cookie is updated with each page view to our site.||6 months from set/update.|
|__utmv||The __utmv cookie passes the information provided via the _setVar() method, which we use to create a custom user segment. This string is then passed to the Analytics servers in the GIF request URL via the utmcc parameter. This cookie is only written if we have added the _setVar() method for the tracking code on our website page.||2 years from set/update.|
|__utmx||This is used by Website Optimizer and only set when the Website Optimizer tracking code is installed and correctly configured for our 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 our site. See the Website Optimizer Help Center for more information.||2 years from set/update.|
|guest_id||This is used by Twitter and serves as our unique identification number associated with Twitter.||2 years from set/update.|
For more information on Google Analytics see: https://developers.google.com/analytics/devguides/collection/gajs/cookie-usage
You block cookies by activating the setting on your browser that allows you to refuse the setting of all or some cookies. However, if you use your browser settings to block all cookies (including essential cookies) you may not be able to access all or parts of our site.
Except for essential cookies, all cookies will expire after 2 years from set/update.