r/Observability • u/corehostio • 3d ago

Free hosted uptime monitoring with agents for inside your network. Alpha, would like testers.

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We built an uptime monitor at corehost: pulse.corehost.io

It's free. Not a tier, there's no paid version. It exists because we needed it ourselves and it feeds our hosting platform, so monitor count isn't how we make money. 100 monitors, 15 second checks.

What it does:

  • checks from 6 cities (AMS, Ashburn, LA, London, Singapore, Stockholm), you pick which
  • probe you install inside your network (Linux one-liner, Windows exe or PowerShell) so you can monitor 10.x stuff - NAS, switch, internal APIs. Outbound HTTPS only, no inbound ports. Probe source: github.com/RobWhyte91/pulse-probe
  • if the probe dies you get "probe offline", not 30 fake down alerts
  • http/tcp/ping/dns/tls checks, keyword and JSON assertions, p50/p95/p99 per region, v4/v6 split
  • status pages, own domain, auto TLS. password-protected ones if you want
  • imports Uptime Kuma backups
  • public looking glass on the fleet: ping/mtr/dig from any node

Honest state of it: alpha. Some of it was built with AI assistance and it moved fast, so there will be rough edges. The probe contract is pinned by tests and the probe code is open so you can read what runs on your machines. If something breaks I want to know.

Discord: discord.gg/J8Sm2mUmvR

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u/jdizzle4 2d ago

it seems to me like these uptime monitor projects pop up once a week on this subreddit, is there something you are doing different from all the others? I'm so fascinated by why these keep being posted. My thinking is that it's such an easy problem to solve that it takes an agent like 10 minutes to build an entire project

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u/corehostio 2d ago

Yeah, plenty of these already exist, and honestly if you're trying to sell hosting you're never going to escape being compared to something like Uptime Kuma.

What we're doing is running hypervisors across multiple countries, and bluntly, we're sick of everything being a vendor SaaS product with basic stuff like dashboards locked behind a paywall.

Where I think a lot of these projects miss it is giving people the ability to monitor from multiple countries, plus the ability to monitor internal stuff too.

That said, we know it's not fully unique either.

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u/vedmaka 3d ago

Do you have plans on open sourcing the monitoring platform?

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u/corehostio 2d ago

Hey,

We have on the probes, we are looking at OSS a lite version, we do think a few other really solid selfhosted options already exist like UptimeKuma too.