To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.
What are cookies?
A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.
- your display preferences, such as contrast colour settings or font size
- if you have already replied to a survey pop-up that asks you if the content was helpful or not (so you won’t be asked again)
Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.
Enabling these cookies is not strictly necessary for the website to work, but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.
Types of cookies used
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 then not work. These cookies do not store any personally identifiable information.
Functionality & Performance Cookies
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. Without these cookies, certain functionality may become unavailable.
These cookies are used to display relevant advertising to visitors, as well as to track the volume of visitors. They track details about visitors such as the number of unique visitors, number of times particular ads have been displayed, the number of clicks the ads have received, and are also used to measure the effectiveness of ad campaigns by building up user profiles. These are set by trusted third party networks, and are generally persistent in nature.
The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.
How to control cookies
You can control and/or delete cookies as you wish – for details, see aboutcookies.org. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.