Cookie policy
Last updated: 28 September 2026
This policy explains the cookies and similar technologies Lustre uses, and how you can control them. "Similar technologies" means other ways of storing or reading information on your device, such as your browser's local storage.
Your choices
We only use optional technologies, such as analytics, if you agree. You can change your choice at any time with Cookie settings at the bottom of every page.
Strictly necessary technologies don't need your consent, because the website or service can't work without them.
Strictly necessary
| Name | Type | What it does | How long |
|---|---|---|---|
lustre-consent |
Local storage | Remembers your cookie choices, so we don't ask on every visit | 12 months |
device |
Local storage | Holds your device check while it's in progress on your phone, so that a refresh doesn't lose it. Cleared when you submit the check | Until the check is submitted |
lustre-capture-debug |
Local storage | Turns on a diagnostic display during a device check. Only set when a support link asks for it | Until turned off |
admin_session |
Cookie | Keeps Lustre staff signed in to the admin area | 24 hours |
| Cloudflare security | Cookie | Cloudflare, our hosting provider, may set cookies such as __cf_bm to tell people apart from bots and protect the website |
Up to 30 minutes |
| Cloudflare Turnstile | Browser signals | Checks that the contact form is filled in by a person, not a bot | For the check only |
| App cache | Cache storage | Stores parts of the website on your device so that the device check loads quickly and works on a poor connection | Until the website updates |
Analytics (optional)
| Name | Provider | What it does |
|---|---|---|
| Cloudflare Web Analytics | Cloudflare | Counts page visits and records the referring website, and your browser, device type and country, to help us improve the website |
Cloudflare Web Analytics doesn't use cookies or local storage, and doesn't track you across other websites. We still only load it if you agree, and it's off until you do.
Managing cookies in your browser
You can also block or delete cookies and local storage in your browser settings. If you block strictly necessary ones, parts of the website, such as the device check, may not work.
More information
Our privacy policy explains how we use personal information. For questions, email [email protected].