Legal
Cookies
In effect from 2026-09-09
What is set, and when
| Cookie | What it does | How long | Optional |
|---|---|---|---|
| Session cookie | Keeps you signed in and protects forms against cross-site request forgery | Until you sign out, or 30 days | No — strictly necessary |
| uw.cookie-choice | Remembers whether you accepted or rejected the optional cookies, so you are not asked again | 12 months | No — records your choice |
| Analytics counts | Counts how often parts of the tool are used, in aggregate. Not set unless you accept. | 12 months | Yes |
There are no advertising cookies
We do not run advertising, we do not have advertising or social-media tracking cookies, and we do not share anything with ad networks. There is nothing on this site that follows you elsewhere.
Your choice, and changing it
Under the Privacy and Electronic Communications Regulations 2003 we may only set non-essential cookies with your consent, and refusing has to be as easy as agreeing. The banner has “Accept all” and “Reject all” as the same size button, side by side, with neither pre-selected.
To change your mind, clear this site’s data in your browser and the banner will appear again. Your browser settings can also block or delete cookies at any time; the service will still work, though you will have to sign in more often.
More
What we do with personal data generally is in the privacy notice.