We use cookies on this website

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 more efficiently, as well as to provide information to the owners of the site. The table below explains the cookies we use and why.

Some of our cookies are necessary for the site to work properly. If you do not agree to these cookies you must leave the site.

You can set your browser to refuse cookies which are not necessary, but we encourage you to accept the cookies our website uses as they help us to improve the user experience for you and many others.

Cookies we use

Necessary cookies

The following are necessary cookies. We use necessary cookies to make our site work. If you don't agree to the setting of these cookies you must leave this site.

Name Information Expires
AWSALB or AWSALBCORS This cookie enables us to allocate server traffic to make the user experience as smooth as possible. A so-called load balancer is used to determine which server currently has the best availability. The information generated cannot identify you as an individual. 7 days
CookieControl Stores a user’s cookie consent for the current domain 90 days

Analytics cookies

We'd like to set analytics cookies to help us to improve our website by collecting and reporting information on how you use it. The cookies collect information in a way that does not directly identify anyone, including the number of visitors to the website, where visitors have come to the website from and the pages they visited.

The following cookies are set by Google Analytics:

Name Information Expires
_ga randomly generated number used to calculate visitor, session and campaign data 2 years
_gat randomly generated number 10 minutes
_gid registers a unique ID that is used to generate statistical data on how the visitor uses the website 1 day

You can opt out of Google Analytics cookies

The following cookie is set by Siteimprove:

Name Type Domain Information Expires
nmstat Persistent

This Siteimprove Analytics cookie contains a randomly generated ID used to recognise the browser when a visitor reads a page.

The cookie contains no personal information and is used only for web analytics.

1000 days after last visit

The following cookies are set by Microsoft Clarity:

Name Information Expires
_clck Persists the Clarity User ID and preferences, unique to that site, on the browser. This ensures that behaviour in subsequent visits to the same site will be attributed to the same user ID. 1 year
_clsk Connects multiple page views by a user into a single Clarity session recording. 1 day
CLID Identifies the first-time Clarity saw this user on any site using Clarity. 1 year
ANONCHK Indicates whether MUID is transferred to ANID, a cookie used for advertising. Clarity doesn't use ANID and so this is always set to 0. 10 minutes
MR Indicates whether to refresh MUID. End of session
MUID Identifies unique web browsers visiting Microsoft sites. These cookies are used for advertising, site analytics, and other operational purposes. 1 year
SM Used in synchronizing the MUID across Microsoft domains. End of session

Embedded content and third-party cookies

When visiting our website, you may also notice some cookies that are related to content from other websites.

When you visit a page with content embedded from another site (for example YouTube or Twitter) you may be presented with cookies from these websites. We do not control these cookies. Please check the third-party websites' privacy policies.

To refuse or delete cookies

We recommend you allow the cookies set by this website as they help us to improve it and provide a better service. If you do not want to receive cookies from this website, select cookie settings under the privacy settings in your browser options and add our domain - - to the list of websites from which you wish to refuse cookies.

Under settings you can also delete individual cookies, or any cookies that your browser has stored. You can find more information on how to delete and control cookies at

If you set your browser to refuse cookies, please be aware that there may be functionality on various websites that will no longer work.