상태

과거 사건

1. 6월, 2026

   1. Network instabilityEmail DeliveryNotification SenderPing APIDashboard

      시작됨: 27 6월, 18:59 UTC

      지속: 10시간, 2분

      There seems to be network instability inside our hosting provider's network. Due to this there may be increased HTTP request latency, intermittent request failures, delayed monitoring notifications. Investigating.

      확인 중: 27 6월, 20:05 UTC

      Our hosting provider has posted an incident report: https://status.hetzner.com/incident/49567296-8543-43c1-a0e2-9755ad4bd018
      
      Connectivity between our servers has returned to normal.

      해결됨: 28 6월, 05:02 UTC

      The issue is resolved.

2. 5월, 2026

   1. SMS, WhatSapp, Phone Call Notifications SuspendedNotification Sender

      시작됨: 27 5월, 05:05 UTC

      지속: 5분

      SMS, WhatSapp, phone call notifications from Healthchecks.io are currently not being delivered because our Twilio account is suspended due to a billing issue. The billing issue is fixed, and we are waiting for the account to be reactivated.

      Post-mortem

      Published a blog article with more details about this incident. Read it here. 

      해결됨: 27 5월, 05:10 UTC

      The Twilio account was reactivated and SMS, WhatsApp, phone call notifications are working again.

3. 4월, 2026

   1. Signal notification delivery brokenNotification Sender

      시작됨: 1 4월, 13:30 UTC

      지속: 17시간, 46분

      We are currently investigating an issue with the delivery of Signal notifications.

      해결됨: 2 4월, 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.