Cookie policy
One cookie keeps your cookie choice itself remembered. A handful more, which you can decline, help us see which pages are actually useful. Nothing here is for advertising, and nothing here builds a profile of you to sell on.
Essential
Keeps the site working, specifically by remembering the choice you make in the cookie banner itself so we don't ask you every visit. Can't be switched off, or the banner would just reappear on every page.
| Name | Purpose | Duration |
|---|---|---|
| ef-cookie-consent | Remembers whether you accepted or declined analytics cookies | 1 year |
Analytics (Microsoft Clarity)
If you accept, we use Microsoft Clarity to see, in aggregate and never tied to your name, which pages get read and where people get stuck, so we can fix what isn't working. Fully optional: decline it and the site works exactly the same. These only get set after you accept in the banner.
| Name | Purpose | Duration |
|---|---|---|
| _clck | Remembers a unique Clarity visitor ID and your preferences, so repeat visits are recognised as the same session pattern | 1 year |
| _clsk | Combines multiple page views into a single Clarity session | 1 day |
| CLID | Identifies the first time Clarity saw this browser on any site using Clarity | 1 year |
| ANONCHK | Microsoft operational cookie; for Clarity this is always set to indicate no ad-linked ID was transferred | 10 minutes |
| MR | Microsoft operational cookie controlling whether a separate Microsoft browser ID gets refreshed | 7 days |
Managing your preference
Accept or decline analytics cookies in the banner on your first visit. You can change or withdraw that choice at any time with Cookie settings, here or in the footer of every page. If you decline after accepting, Clarity stops running and its cookies are removed from this site. Any cookies Microsoft has set on its own domains can be removed in your browser settings.