Healthchecks.io Status - Incident history

Welcome to the Healthchecks.io status page. If there are interruptions to service, we will post a report here, and on our Mastodon account.

Past incidents

May, 2026

Apr, 2026

Mar, 2026

May, 2026
All systems operational.
Apr, 2026
1. Signal notification delivery brokenNotification Sender
  Started: 1 Apr, 13:30 UTC
  Duration: 17 hours, 46 minutes
  We are currently investigating an issue with the delivery of Signal notifications.
  Resolved: 2 Apr, 07:16 UTC
  The problem has been fixed, Signal notifications are being delivered again.
  
  What happened:
  
  On April 1, 13:30 UTC, our signal account became unregistered. This was caused by a new Signal protocol feature – SPQR (Sparse Post-Quantum Ratchet) – becoming mandatory and our Signal client software not supporting it.
  
  The fix:
  
  Updated to the latest signal-cli version (0.14.1), registered a new account with the same old number, and re-added the linked devices.
  
  For more background information, here is an issue on the signal-cli issue tracker discussing the account de-registrations on April 1.
Mar, 2026
All systems operational.