Cookies and local storage

Appearance preference

Key sp-color-mode in local storage. Values: light, dark or auto. It remembers the Appearance control. It stays until you clear site data for this browser. It is not sent to a server.

Waitlist session

When the waitlist is switched on, a first-party session cookie named sp_session holds the form token for that visit. It is HttpOnly and SameSite=Lax. On HTTPS it is limited to HTTPS requests. It is removed when the browser session ends. While the waitlist is off, that cookie is not set.

What this site does not use

No analytics cookies, no advertising cookies, and no third-party scripts.