Supporting patients, staff and research at UCLH


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Functionality Cookies
These cookies help us personalize content and functionality for you, including remembering changes you have made to parts of the website that you can customize, or selections for services made on previous visits. If you do not allow these cookies, some portions of our website may be less friendly and easy to use, forcing you to enter content or set your preferences on each visit.

Performance Cookies
These cookies allow us measure how visitors use our website, which pages are popular, and what our traffic sources are. This helps us improve how our website works and make it easier for all visitors to find what they are looking for. The information is aggregated and anonymous, and cannot be used to identify you. If you do not allow these cookies, we will be unable to use your visits to our website to help make improvements.

Cookies in use

Strictly necessary anonymous cookies

csrf_token - A security cookie used to identify the visitor and prevent Cross Site Request Forgery attacks. Expires: 2 hours.

last_activity - Records the time of the last page load. Used in conjunction with the last_visit cookie. Expires: 1 year.

last_visit - Date of the visitors last visit. Expires: 1 year.

visitor_consents - Saves responses to Consent requests for non-logged in visitors. Expires: 1 year.

sessionid - Session id, used to associate a logged in visitor with their data. Expires 1-2 hours.

cartthrob_session_id - required for online purchases. Expires 24 hours.

Functionality cookies

tracker - Contains the last 5 pages viewed, encrypted for security. Typically used for form or error message returns. Expires end of session.

Performance cookies

_gid, _ga - cookies set by Google Analytics which records how you use our site. These may include personally identifiable information. Expire between 24 hours and 2 years.