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How Domain Monitor works — the bot, what we check, and how alerts reach you.
What it is
Domain Monitor watches your domains and pings you in Telegram when something changes — before it becomes an outage.
Using the bot
Open @gmediatoolsbot and press Start.
/add example.com — add a domain; we check it instantly and start monitoring.
/status — current status of every check on your domains. /list — your domains.
/remove example.com — stop watching. /help — all commands.
What we check
SSL/TLS certificate — issuer, expiry date, trust and key rotation.
Domain expiry — registry expiry date and status, via RDAP.
Uptime — HTTP(S) reachability and status code; we alert on down ↔ up changes.
DNS records — A/AAAA/MX/NS/TXT; we alert when they change (a hijack / misconfig signal).
Security posture — HTTPS redirect and security headers (HSTS, CSP, …); we alert if it regresses.
A background worker re-checks on a schedule and alerts you only when the state actually changes (no spam).
FAQ
Is it free?
Yes — the free tier covers 3 domains with daily checks and Telegram alerts.
Which domains are supported?
gTLDs (.com/.org/.io/…) now. ccTLDs (.ru/.by/.ua/.kz) are coming in a later wave.
How fast are alerts?
The worker checks on a schedule (daily on free) and notifies you on any change.
@gmediatoolsbot · part of the g.media ecosystem