Hosts served through Cloudflare may appear unreachable from this tool — the platform cannot open a socket back into its own network. If a known site reports as unreachable, this may be the reason rather than a firewall on your end.
About this tool
This tool answers when you ask it. It does not monitor, alert, send reminders, or re-check. Ask again when you need an update.
It reports exactly what the server presented over the wire. If a field is absent, the tool says absent — it never fills a gap with a typical value.
No compliance claims, no inferred data, no testimonials. Just a direct TLS handshake and a structured report of what came back.