Cookies policy

Cookies policy

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Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work better, as well as to provide information to the owners of the site. A cookie often contains a unique number, which can be used to recognise your computer when a user of your computer returns to a website that it visited previously.

We use cookies to enhance the online experience of our visitors, to better understand how our websites are used and to monitor how our advertisements perform. Cookies may tell us, for example, whether you have visited our site before or whether you are a new visitor.

Our cookies do not store financial information or information which is capable of directly identifying you (such as your name or address). You have the right to choose whether to accept these cookies. You can exercise this right by amending or setting the controls on your browser to reflect your cookie preferences. However, please note that if you choose to refuse cookies you may not be able to use the full functionality of this website.

The “Help” menu in the toolbar of most web browsers will tell you how to change your browser’s cookie settings, including how to have the browser notify you when you receive a new cookie, and how to disable cookies altogether. An online guide is available(link is external) if you have difficulties trying to change your browser settings.

We have classified our cookies into two broad types – ‘first party cookies’ and ‘third party cookies’:

In addition, cookies may be either ‘session cookies’ or ‘persistent cookies’. Your computer automatically removes session cookies once you close your browser. Persistent cookies will survive on your computer until an expiry date specified in the cookie itself, is reached.

To help you understand how we use cookies, this is a list of the main cookies set across our website and what each is used for:

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Store information about the size of your browser window. Expires within 24 hours.


Stores 1 or 0 depending on if the user has JavaScript enabled in their browser. Expires when the browser is closed.


Randomly generated identifier assigned to uniquely identify a user’s session. Expires within 30 minhutes of the browser closing.


We work with a number of third party suppliers who set cookies on our website to enable them to provide us with services. These cookies are mainly used for reporting and advertising purposes so that we can improve the way we communicate with our supporters and ensure the money we invest in online advertising is well spent. More information about the main suppliers we use and their privacy policies is listed below.


We use DoubleClick cookies to measure the effectiveness of our online advertising. This enables us to ensure that any money we spend on digital marketing gives us a good return on investment. 

DoubleClick cookies do two things: 1) they track anonymised conversion data so that we can measure advertising effectiveness and 2) they are used to serve advertising, enabling us to serve advertisements to or exclude people who have visited our website. The cookies also allows us to limit the number of times a person sees our advertisement. 

DoubleClick cookies sometimes include a pixel from the advertising networks we work with. This allows us to target adverts effectively on their networks. 


Google Analytics 360 is a web analytics service provided by Google inc. that enables us to measure how people use our website using cookies. We use this information to improve our website experience for website visitors and to measure the effectiveness of our online advertising. We can also use these cookies to serve relevant advertisements to people who have interacted with specific sections of the site, or to exclude those audiences from advertising. 

For those site visitors who have explicitly opted in to Google’s data privacy policy, Google will associate your IP address with other data held by Google in order to identify you across multiple devices. You may refuse the use of cookies by selecting the appropriate settings on your browser. You may also stop the transmission of information generated by the cookies about your use of the website and of your IP address to Google, by downloading and installing the Google Analytics Opt-out Broswer Add-on available here https://tools.google.com/dlpage/gaoptout

Google Optimize allows us to test variants of web pages and see how they perform against an objective that we specify. Optimize monitors the results of our experiment and tells us which variant has the best performance.


Facebook is a social media platform we use to communicate with our supporters through both unpaid posts and paid advertising. We use cookies to measure the effectiveness of paid advertising on Facebook to ensure the money we spend is used effectively. They also enable us to either service advertisements to or excluse people who have visited our website. 


Optimizely is a website analytics tool we use to try different versions of our website pages to our visitors to see which page people prefer. We use this information to understand how our supporters are using the Cancer Research UK website so that we can improve their experience. 


HotJar is a website analytics tool we use to see how our supporters are moving around our website and get feedback through surveys, so that we can improve their experience and help ensure they can find what they are looking for.

We also use additional cookies from third party advertising or analytics partners on a short term basis. These help improve the effectiveness of our advertising, for example by enabling us to reach or exclude our website visitors across partner networks. These cookies are listed as of the time this page was updated and is reviewed regularly.


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If you go on to a page on our website that contains embedded content, for example YouTube, you may be sent cookies from these websites.

Our website also contains embedded “share” buttons to enable users of the site to easily share articles with their friends through a number of popular networks, for example, Facebook and Twitter. These sites may set a cookie when you are also logged in to their service.

We do not control the setting of these cookies, so we suggest you check the third party website for more information about their cookies and how to manage them.

Further information about cookies and how to control their use is available from All About Cookies(link is external) and Your Online Choices(link is external).

Cookies policy

Research & References of Cookies policy|A&C Accounting And Tax Services

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