Some of the cookies we use are essential for the site to operate, such as those relating to login.
We do not use any Flash cookies or cookie mechanisms other than standard HTTP cookies for provision of our own services.
For convenience, we show cookies across all our sites in this single list. Because we use third-party services to supply some of our functionality, some of those services may introduce cookies of their own. We have documented the main ones we know about, but third parties are responsible for the cookies set by their own applications.
Strictly Necessary Cookies
These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.
These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
Most of the cookies we use are known as session cookies, which allow us to make your browsing experience faster and more seamless – session cookies will expire whenever you close your browser or shut down your computer, and such cookies need not be blocked. Other cookies used for specific purposes will expire when that purpose is no longer required, such as when a survey closes.
You can find out more about how to block cookies in specific browsers at http://aboutcookies.org.
Browser manufacturers also provide help pages relating to cookie management in their products. Please see below for more information.