Got a symptom but not sure what's causing it? Use our award-winning Smart Symptom Checker to find out – it's free!
Cookies are small files of letters and numbers that are stored on your browser or the hard drive of your computer or mobile device if you agree to accept them. They contain information that is transferred to your computer or mobile device’s hard drive. Cookies collect information about you, such as your preferences, the number of times you have visited a website. The cookie allows the website to “remember” your actions or preferences over time. While cookies and the information they transmit may not identify a living individual on their own, they may be able to do so in combination with other information held by the online provider or a third party.
A cookie can be classified by its lifespan, the domain to which it belongs and by its function. Please note that we don’t use all types of cookies described in the list below. To see which cookies from the list we use and why, see section “What cookies do we use and why”.
By lifespan, a cookie is either a:
Session cookie, which is erased when the user closes the browser. They allow website operators to link your actions during a single browser session for you to use the website most efficiently. As these cookies are not usually stored beyond the browser session, they are usually considered less privacy intrusive.
Persistent cookie, which remains on the user’s computer or mobile device for a pre-defined period of time. They enable the website to "recognise" you on your return, to remember your preferences and to tailor services to them. They may also be used to track your browsing activity across different websites and to build up a detailed profile of your browsing behaviour for targeted advertising. For this reason, persistent cookies are generally considered to be more privacy-intrusive than session cookies.
As for domain to which it belongs, there are either:
First-party cookies, which are planted by the web server of the visited page and share the same domain. This involves assigning a unique identity to the user by setting the cookies to either the user's browser and/or their hard drive with a view to track the user's journey on the website. First-party cookies are commonly used by website operators for session management, personalisation and recognition purposes. This means the information transmitted by the cookie is later combined with the personal information the internet user has supplied to the provider in the course of a sale or other contact. In these cases, your cookie is retrieved each time you visit the site which planted it, making it unnecessary to re-enter registration data on each visit. Although cookies provide you with some benefits, they also enable online providers to build profiles of you, your online behaviour and your interests.
By its function:
Strictly necessary cookies. These are cookies that are required for the operation of a website. They include, for example, cookies that enable you to log into secure areas of a website, use a shopping cart or make use of e-billing services.
Analytical/performance cookies. These types of cookies allow providers to recognise and count the number of visitors and to see how visitors move around their website when they are using it. They assist providers in improving the way their website works, for example, to help users find what they are looking for easily.
Functionality cookies. These are used to recognise you when you return to a website. They enable the personalisation of content and the recognition of you and your preferences (for example, their choice of language or region).
Targeting cookies. These cookies record your visit to a website, the individual pages visited and the links followed. If the cookie is set by a third party (for example, an advertising network) which also monitors traffic on other websites, this type of cookie may also be used to track a user's movements across different websites and to create profiles of their general online behaviour. Information collected by targeting cookies is commonly used to serve users with targeted online advertising.
We use analytical/performance, session and persistent cookies.
We engage Google, a third party to help us with analytics (Google Analytics, hereinafter referred to as ‘’Google Analytics’’). Google Analytics is a tool that helps us understand how our visitors engage with Cold, Flu and COVID-19 Checker (‘’Checker’’) or our website (“Site”). It may use a set of cookies to collect information and report Checker usage statistics without personally identifying individual visitors. We use the data collected by Google Analytics to help us improve the quality of the Checker and to analyse Checker usage. Google Analytics processes the information we share - namely various information on how you use the Checker by their own unique user IDs, but they also have access to your IP address and any other data which they collect from you directly.
Google Analytics Cookies
For more information on Google Analytics and their cookie usage, visit https://developers.google.com/analytics/devguides/collection/analyticsjs/cookie-usage
Below you can find a list of the Google Analytics cookies we use on our website and Web App:
|Name of the cookie||Description||Category of use||Expiration time|
|NID||The NID cookie contains a unique ID Google uses to remember your preferences and other information. This cookie helps Google customise ads on Google proprieties, like Google search.||Preferences||6 months|
|_ga||Used to distinguish users.||Analytics||2 months|
|_gid||Used to distinguish users.||Analytics||24 years|
|_gat||Used to throttle request rate.||Analytics||1 minute|
The cookies will not be used for any other purpose than the one stated above.
The length of time that a cookie remains on your computer or mobile device depends on whether it is a “persistent” or “session” cookie. Session cookies last until you stop browsing and persistent cookies last until they expire or are deleted. To find out how long cookies will remain on your computer you should visit third-party cookies websites mentioned in section What cookies do we use and why above. See the section below on how to control cookies and more information on removing them before they expire.
You can opt out of Google Analytics cookies by clicking Privacy Settings on the Privacy Matters screen. If you opt out, we won’t place analytic cookies on your device.