When you look up a person or a company for work, the site doesn't need your name to recognise you.
Your browser is enough.
This page lists what this browser shows to any website that looks. Everything runs inside this page. A security rule in the page blocks every request this page could make, so nothing is sent anywhere.
This check runs in any browser. CloakID itself works in Firefox only.
That list is your fingerprint. A site can read it on every visit — no cookie, no name — and tell it's you again.
- This page cannot count how many other people share your values — it only shows what is exposed.
- It cannot see your IP address, your request headers or how your browser sets up encrypted connections — websites see those on their side.
Do you want this to stop? Here is what people already use — and what each one leaves open, in its own words.
A VPN
Your VPN moves your address. Your browser still looks exactly like your browser — the values above do not change. A VPN and CloakID do different jobs.
The look-alike browsers
Other tools make everyone look alike — a stricter setting inside Firefox, or a separate browser. Each says in its own documentation what that costs: pages can break (as ours can), your time zone and theme are replaced, and your IP address stays yours.
In their own words
- Hardened Firefox (resistFingerprinting), in Mozilla's words: “it can cause some websites to function improperly”; “we do not recommend this feature for the average Firefox user”.
- Mullvad Browser, in its makers' documentation: “a similar fingerprint for all of its users”; without a VPN “your IP address won't be masked”.
CloakID
CloakID is a Firefox extension — Firefox only — working with the CloakID service in the EU. On supported sites your browser presents a common look instead of its own, in your own Firefox, with your own theme. The common look is built from statistics on what real browsers report, checked against what really occurs — and users who opt in to statistics help keep it current.
After you install CloakID, on a supported site your browser presents a common look like this one. CloakID changes every signal it considers revealing, and leaves alone what a page needs to work. These are example values — the real ones come from statistics on real browsers and change over time, so we don't publish them.
| Signal | Yours | Example |
|---|
CloakID doesn't only change what your browser reports. On a supported site it also deals with the scripts the page loads to read your browser — that is what the service in the EU does with the page. What a site receives from your browser matches the common look.
This page cannot count how many people share any set of values.
Limits, said out loud
- On a supported site, the page you open passes through the CloakID service in the EU to apply the protection — never your passwords or cookies. Sites you exclude are never sent. We keep one copy of each page, by its address, for 120 days, then delete it — not linked to you or your account, and with no per-user record of the addresses you visit. Details: Trust Center · Privacy Policy.
- Check this page yourself: open your browser's network tab (F12) — it makes one request, the page itself.
- Firefox only. Supported sites only — the badge tells you, page by page.
- Your IP address is still your IP address — CloakID does not touch it. Keep your VPN.
- Some pages will break under protection. If one does, switch CloakID off for that site.
- We don't sell anonymity. There are places we can't protect you, and we say so.
The badge
- Green ●
- Protection applied on this page load.
- Red !
- A failure the extension detected on this page, or the CloakID service unreachable.
- OFF
- You switched CloakID off, or excluded this site.
- Blank
- Nothing recorded for this page.
The badge as the extension draws it.
Treat the badge as a signal, not a verdict.
CloakID leaves its own sign-in and billing pages alone, and the badge says OFF there. Payment and login pages on other sites are treated like any other page — if you want CloakID to stay out of one, switch it off for that site.
It's better for me to tell you that you're not protected than to give you a false impression that you are.
Know, page by page, what the badge saw — and what it cannot see.
Install CloakID for FirefoxSupported sites only — the badge shows you where.
Install · sign in · start your 14-day trial — then the badge shows you where you're covered.
CloakID is free to install for Firefox. Plans and prices are on our pricing page.