StayUp.dev

What it does

StayUp.dev is a tiny tool I built after Cloudflare's outage cooked our monitoring. Instead of another ping tool, it actually tells you why your site looks down - origin dead, CDN failing, DNS slow, SSL expiring, etc. Free diagnostic tool, plus £9/mo monitoring + instant alerts if Cloudflare/CDN breaks.

• IM
  I made a down detector for down detectorNov 2025 · downdetectorsdowndetector.com · ▲591

  After down detector went down with the rest of the internet during the Cloudflare outage today I decided to build a robust, independent tool which checks if down detector is down. Enjoy!!

• KG
  Keep – GitHub Actions for your monitoring tools2023 · github.com · ▲181

  Hi Hacker News! Shahar and Tal from Keep here. A few months ago, we introduced here at HN (https://news.ycombinator.com/item?id=34806482) Keep as an “open source alerting CLI” and got some interesting feedback - mainly around UI, automation, and supporting more tools. We were VERY early back then, and we understood that although the current DX around creating alerts is not great, it's not that critical and developers don’t need another tool just for that. But we did find something else. While talking to developers and devops, we found that a lot of companies use many tools…

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  Does it use Cloudflare?2017 · ▲144

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• 
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• DM
  DevRaven – Monitoring for Developers2022 · devraven.io · ▲46

  Hi HN! I am Krishna Thota, founder of DevRaven. DevRaven is a monitoring platform for Developers. DevRaven enables engineering teams or individual developers to setup active monitoring for their services/applications and get alerted when things don't work as expected Today's launch makes available the following features: API Monitoring - Monitor your HTTP end points and perform no-code or scripted assertions. Synthetic Monitoring - Execute browser based end-to-end tests using Playwright framework. No setup required. SSL Monitoring - Monitor SSL certificates for your end points and get…

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  upsonar.ioDec 2025 · upsonar.io · ▲1

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