Cookie policy
Last updated: 11 October 2026. This page is written in plain English. It is not legal advice.
Cookies are small files a website saves in your browser. This app uses very few, and only the ones it needs to work.
| Name | What it does | How long | Type |
|---|---|---|---|
| pf_session (shown as __Host-pf_session on the live site) | Keeps you signed in. Scripts on the page cannot read it, it is only sent over HTTPS and it is never sent from other websites. | 7 days, or until you press Lock | Essential |
| theme (browser storage) | Remembers light or dark mode. | Until you clear your browser data | Essential preference |
| cookieOk (browser storage) | Remembers that you saw the cookie notice. | Until you clear your browser data | Essential preference |
What it does not use
No advertising cookies, no tracking, no analytics, no social media buttons and no outside fonts or scripts. Because only essential storage is used, there is nothing to switch off, so the notice only asks you to acknowledge it.
Controlling cookies
You can delete or block cookies in your browser settings. If you block the sign-in cookie, you will not be able to stay signed in.
Who runs this app
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