Check-Host

Check-Host is a network diagnostics service that runs checks from dozens of servers scattered around the world, and this bot exposes its core features without opening a browser. Send /ping example.com or /http example.com and the bot fires the check from multiple countries at once, then returns a per-location breakdown of latency or HTTP status — exactly what you need to tell whether a site is down everywhere or just unreachable from your own network or ISP.

Unlike subscription monitors, Check-Host's bot is built for one-off, on-demand diagnostics rather than continuous alerting: there is no monitor list, no scheduled polling, and nothing to configure beyond sending a command with a hostname or IP. That makes it closer to a network Swiss-army knife for developers and sysadmins troubleshooting an incident right now than a background watchdog.

Because it needs no sign-up and works the moment you press Start, it is one of the fastest ways to confirm a suspected outage before escalating, and it complements a dedicated always-on monitor rather than replacing one.