Your users see a stranger’s address at sign-in.

Check your app for free. On Cloudflare Workers, get the tested fix that makes your sign-in screen show your own domain.

Under 10 seconds · read-only

Illustration of our lab test, 24 Oct 2026: before and after the fix.

What the check tells you

  • The sign-in name your users see: your domain, your platform address, or a firebaseapp.com address.
  • Whether your app uses redirect sign-in, which Firebase’s docs say needs one of their fixes on recent browsers.
  • Whether a tested fix exists for your host. Today that’s Cloudflare Workers.

The fix pack

Signhome fix pack

In our lab test, the pack’s Cloudflare Workers snippet, pasted as-is, changed Google’s sign-in screen from pewterkit-day0.firebaseapp.com to pewterkit.com on the next sign-in (5/5 runs, 24 Oct 2026, with the domain already added in Google Cloud and Firebase).

Your price is shown with your result.

Works on Cloudflare Workers or your money back (14 days). How it works

How it works

  1. Paste your live URL.
  2. See which name Google will most likely show, and why.
  3. Unlock the pack for your host, apply it, and re-check.

FAQ

What does the check read?

It fetches only your page and its same-origin scripts. It sends no cookies.

Which hosts have a tested route?

Cloudflare Workers. Other hosts: not tested yet.

What’s in the Signhome fix pack?

The tested Cloudflare Workers route, the two console steps you do yourself (the handler redirect URI and Authorised domains), what Google will show afterwards, a paste-ready prompt for your AI agent, and an owner checklist. One-time payment.

Does it replace an audit?

No. Signhome looks at one thing: the domain Google’s sign-in shows.

Check your app.