What a cookie is
A cookie is a small text file that a site stores in your browser and reads back on your next visit. Cookies that are necessary to provide a service you asked for do not require consent; cookies used for advertising or cross-site tracking do. StarTrading uses only the first kind.
Cookies we set
| Name | Purpose | Type | Lifetime |
|---|---|---|---|
theme |
Remembers your choice between dark, light and system theme so the page renders in the right colours before any script runs | Functional, first party | 12 months |
__Host-session |
Keeps you logged in to your account after a magic link or Google sign-in; an opaque identifier, nothing readable inside | Strictly necessary, first party, HttpOnly, Secure | 30 days, rolling |
No cookie is set before you choose a theme or log in. A visitor who only reads the site receives no cookie at all.
Third-party cookies
None. The payment provider and the identity verification provider set their own cookies on their own pages during checkout and verification; those pages are covered by their own cookie policies, linked from the checkout and verification screens.
Audience measurement
Audience measurement uses Umami, an open-source tool that we host ourselves on our own server: no cookie, no identifier stored in the browser, no data sent to a third party, and aggregate reports only (pages viewed, country, device, source of the visit, clicks on a few buttons such as the launch-list form). During a visit the browser also keeps, in session storage that disappears when the tab is closed, the site you came from, any campaign parameters in the link you clicked and the first page you opened; if you subscribe to the launch list or send us a message, that origin is recorded with it so we know which channels bring people to us.
Local storage
The site does not use local storage or IndexedDB. The dashboard may store display preferences (column widths, chart settings) in your browser; they never leave it.
How to control cookies
You can delete or block cookies in your browser settings. Blocking the session cookie prevents login; blocking the theme cookie only resets your theme choice on each visit. Deleting the theme cookie is the same as choosing “System” in the theme selector of the header.
Changes
The version and date at the top of this page identify the current text. If we ever add a cookie that requires consent, we will ask for it before setting it and update this page.