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JDRF is undergoing a transformation.
We are becoming Breakthrough T1D in October.

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Cookie policy

Read our cookies policy to understand how we use cookies to help provide a good experience when you visit our website. You can also find information on how to block or delete cookies if you’d prefer them not to be set.
Content last reviewed and updated: 10.08.2023


Our website, like most websites, uses cookies to distinguish you from other users of our website. This helps us to provide you with a good experience when you browse our website, including using the online shop and donation services, and also allows us to improve our site. By using cookies, the website is essentially able to ‘remember’ you during a single visit to the site (known as a session cookie) or for repeat visits (known as persistent cookies).

By continuing to browse the site, we will assume that you agree to our use of cookies as set out below.

What is a cookie?

A cookie is a small file of letters and numbers that is stored on your browser, the hard drive of your computer or your mobile device. Each cookie is unique to your web browser.

We use the following cookies on our site:  

  • 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 or use the shopping cart function in our online store.
  • Analytical/performance cookies. They allow us to recognise and count the number of visitors to our site 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. This information is anonymous – we do not collect anything that would identify a user. We combine individual user data with the rest of the visitor data and examine it as a whole to build up a picture of how the site is performing.
  • Targeting cookies. These cookies record your visit to our website, the pages you have visited and the links you have followed. We use this information to make our website more relevant to your interests. We may also share this information with third parties for this purpose.

Examples of the types of cookies we use on our site include Google Analytics and Website Session, as explained further in the following table:

Cookie Name Purpose Expiry
Google Analytics __utma Used to help us monitor traffic and identify unique visitors 2 years from set/update
Google Analytics __utmb Used to help us monitor traffic and identify unique visitors 30 mins from set/update
Google Analytics __utmc Used to help us monitor traffic and identify unique visitors End of browser session
Google Analytics __utmz Used to help us monitor traffic and to store site visit referral information 6 months from set/update
Website Session ASP.NET_SessionId Standard ASP.NET cookie – randomly generated identifier assigned to uniquely identify a user’s session

This cookie is essential as it  allows you to use our site in a way that makes your browsing experience more convenient, for example, by allowing you to store items in an electronic shopping basket between visits. If you complete our online forms, we will use cookies to remember your details during your current visit, and any future visits provided the cookie was not deleted in the interim

Expires within 30 minutes of the browser closing

For information on the other cookies used on our website, please contact

Third party cookies

Please note that third parties (including, for example, providers of external services like web traffic analysis services) may also use cookies, over which we have no control. These cookies are likely to be analytical/performance cookies or targeting cookies.

The JDRF website also carries embedded ‘share’ buttons to enable users of the site to easily share articles with their friends through a number of popular social networks, for example, Facebook, Twitter or Google+. These sites may set a cookie when you are also logged in to their service.

For information on the other third party cookies used on our website, please contact

JDRF does not control the dissemination of these cookies and you should check the relevant third party website for more information about these cookies.

What to do if you don’t want cookies to be set

If you prefer, it is possible to block some or all cookies, or even to delete cookies that have already been set.

You can block cookies by activating the setting on your browser that allows you to refuse the setting of all or some cookies; the Help function within your browser should tell you how. Alternatively, contains comprehensive information on how to do this on a wide variety of desktop browsers. 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.

To opt out of being tracked by Google Analytics across all websites visit:

You can opt out of Google’s use of cookies by visiting Google’s Ads Settings:

For more information on how to control cookies, please refer to:

For more information on how to delete cookies, please refer to:

Expiry of cookies

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.

Please see the tables above for more information on when specific cookies will expire.