System status

Zellio.io runs no application servers and holds no accounts or data, so there is little on our side that can go down — if this page loaded, the site is being served. What varies is the browser the tools actually run inside, and that is what the checks below test, live, right now.

Nothing here is recorded or sent anywhere. Each check runs on your device and the result is discarded when you close the tab. There is no uptime history because we keep none — a chart of past availability would be invented rather than measured.

Running checks…

Testing the browser APIs the tools depend on.

Checking…

Site delivery

  • Secure connectionChecking
  • Visit counter serviceChecking

Tool runtime in your browser

  • WebAssemblyChecking
  • Web CryptoChecking
  • Canvas renderingChecking
  • Local file readingChecking
  • File downloadsChecking
  • Time zone databaseChecking
  • Clipboard accessChecking
  • Local storageChecking

Offline support

  • Service workerChecking
  • Cache storageChecking

Something still not working?

If every row above is operational and a tool still misbehaves, that is a bug on our side rather than a capability your browser is missing. Tell us what you were doing and which tool, and include what this page reports — it narrows the cause quickly.

Report a problem