OpenStatus
OpenStatus is open-source status-page and uptime-monitoring software from Paris, France, built by a small, bootstrapped team with no outside investors. Self-hosting is free, and a free hosted tier is also available.
Quick facts
It's genuinely open source and self-hostable, with monitoring-as-code (Terraform, CLI, Node SDK) if you want your status page defined in version control rather than clicked together.
It's run by a two-person team, so support and new-feature pace depend on a very small crew, and if you self-host, double-check the IP-restriction setup behind your own reverse proxy.
Why does it score 90?
Registered as an SAS in Paris, France – a full EU member state.
Bootstrapped and profitable, run by its two co-founders with no outside investors.
Monitoring probes run across roughly 28 regions on multiple cloud providers, all landing inside the EU/EFTA, so infrastructure counts as mixed.
Fully open source and self-hostable, and as a French company it falls under GDPR by default.
Statuspage