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Certimon docs

Everything you need to monitor SSL certificates with Certimon — from your first /check to managing dozens of domains in the web dashboard.

Open @CertimonBot Open web dashboard

Free • Unlimited domains • No signup, no credit card

What is Certimon?

Certimon is a free SSL certificate monitoring service. You tell it which domains to watch and how many days before expiry you want a heads-up; it checks the live HTTPS certificates and pings you on Telegram before any of them are about to expire.

There is no signup, no credit card and no per-domain pricing. You can drive everything from the @CertimonBot Telegram chat using a few short commands, or from the web dashboard if you prefer a visual list.

These docs cover the three commands most people use — /check, /remind and /domains — plus how to use the web dashboard for the same tasks.

Documentation pages

/check command

Look up the SSL certificate for any domain right now. See the issuer, expiry date, days remaining, and any common errors explained in plain English.

/remind command

Set a Telegram reminder before a certificate expires. Choose any number of days, stack multiple windows, or remove a reminder you no longer need.

/domains command

See every domain you're watching, its expiry date, how many days are left, and which reminder windows are active — all in one Telegram message.

Web dashboard

Add and manage domains in a browser at app.certimon.com. Same data as the Telegram bot, in a sortable list with status badges and one-click delete.

Get started in 30 seconds

  1. 1. Open @CertimonBot on Telegram and tap Start.
  2. 2. Send /check yourdomain.com to see the current certificate.
  3. 3. Send /remind yourdomain.com 30 to get pinged 30 days before expiry.
  4. 4. Repeat for every domain you care about. Use /domains any time to see the list.

Ready to set up your first reminder?

Open Telegram, send /remind yourdomain.com 30, and you're done.

Open @CertimonBot