{
  "id": 3261210,
  "title": "A Dead-Man's Switch That Pages Once and Goes Quiet Is Worse Than None. Ours Went Silent for 43 Days.",
  "url": "https://urgent.news/2026/08/25/a-dead-mans-switch-that-pages-once-and-goes-quiet-is-worse-than-none",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-08-25T12:21:39.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/merlonix/a-dead-mans-switch-that-pages-once-and-goes-quiet-is-worse-than-none-ours-went-silent-for-43-days-1f0n"
  },
  "original_language": "en",
  "account": "Heartbeat monitoring relies on receiving periodic pings from a system to confirm its continued operation. If a system stops sending these pings, the monitoring system assumes it has encountered a failure and sends an alert. However, the source material highlights a potential flaw in this approach. Specifically, the monitoring system may fail to detect a system outage that lasts longer than its scheduled check intervals. This could lead to prolonged periods of unnoticed downtime, as demonstrated by the author's own experience with a monitoring system that remained silent for 43 days before alerting.",
  "summary": "Most monitoring watches for something bad to appear: a 500, a timeout, an expired certificate, a slow response. A heartbeat monitor does the opposite. It watches for something good to stop appearing . Your cron runs, your backup completes, your embedded device phones home, your queue worker drains — and each of those pings a URL to say \"I'm still alive.\" The monitor's job is to notice when the…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}