What are cookies and how do they work?

A cookie is a text file containing information that can be remembered by a web browser between pages. When an individual uses a web browser to access the internet their browser can create cookies which are stored on the user’s computer. Cookies are not programs and therefore cannot contain viruses or other malicious software. They are purely a string of text and numbers.

Session cookies only last during a single visit. When you close your web browser the session cookie information is automatically removed from your computer.

Persistent cookies are stored by the user’s web browser even when the web browser has been closed, so that the next time a user goes back to the website that originally set the cookie, the web site can read information back from the cookie.

Persistent cookies have an expiry date which controls when they are automatically deleted. This can be anything from a few minutes to several years, depending on your own browser settings.

Google Analytics is a system used by many websites to record information about who visits a website. Google set six different cookies with expiry dates ranging from 30 minutes to 2 years. These cookies are used mainly to differentiate between first time visitors to a website and repeat visitors. They also allow us to ensure our website performs as well as possible for our users. The cookies are able to collect an anonymous customer number when a user is logged into the website, allowing our backend systems to ensure accuracy of Google Analytics data and help us ensure website experience remains relevant across devices. They do not contain any personally identifiable information. You can find out more about how Google use cookies at http://www.google.co.uk/policies/privacy/ (English only)

If you have any further questions about how we use cookies please contact us.

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Calibration

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