Cookie policy
This website only uses essential cookies and browser storage - the small files and settings it needs to work. We do not use advertising or tracking cookies, and we do not share anything stored here with anyone else. We count visits without cookies, as explained below.
Cookies are small files saved by your browser. Local storage is a similar store of settings that stays on your device and is never sent to us. Because these are essential for the site to work as you would expect, we do not need to ask for your consent before using them.
| Name | Type | What it does | How long |
|---|---|---|---|
| extod-units | Cookie | Remembers whether you see glucose in mmol/L or mg/dL. | 1 year |
| extod:education-disclaimer:… | Local storage | Remembers that you have read the education notice for people with diabetes or for health professionals, so it does not show on every page. | 30 days |
| extod:cookie-notice-dismissed | Local storage | Remembers that you closed the cookie notice. | Until you clear your browser data |
| extod:world-diabetes-data:… | Local storage | Remembers whether you have already taken part in World Diabetes Data, so you are not asked twice. | Until you clear your browser data |
These are only set for people who review or edit the website. Visitors never get them.
| Name | Type | What it does | How long |
|---|---|---|---|
| extod:review-opt-in, extod:review-author | Local storage | Switches on the review tools and remembers the reviewer's name. Only set for people reviewing the site. | Until you clear your browser data |
| keystatic-gh-access-token, keystatic-gh-refresh-token | Cookie | Keeps content editors signed in to the site's editor. Only set for people who edit the site. | Until they sign out or the session expires |
We use Vercel Web Analytics to count how many people visit and which pages they use, so we can see what helps. It does not use cookies or store anything on your device. It records the page, the site that sent you, your browser, device type and country, but not who you are. Visits are grouped using a code made from your request that is discarded after 24 hours, so you cannot be followed across days or other websites.