Can OnlineOrNot detect certbot renewal failures directly?

OnlineOrNot monitors the live HTTPS endpoint and SSL certificate behavior. If a failed renewal causes certificate validation to fail, OnlineOrNot can alert you in Telegram.

Can certbot alerts go to Telegram groups?

Yes. Telegram alerts can go to private chats, groups, supergroups, or channels.

Do I need a Telegram bot token?

No. OnlineOrNot uses @onlineornotcom_bot, so you do not need to create or store a Telegram bot token.

Will OnlineOrNot tell me when the certificate is fixed?

Yes. OnlineOrNot sends a Telegram recovery alert when the certificate check starts passing again.

Customer-backed and built to last. Read why

Telegram alerts
when certbot
fails

Monitor certificate renewal healthAlert your team in Telegram before customers see errors

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Trusted by thousands of businesses

Send certbot and certificate failure alerts to Telegram

Certbot renewal failures can quietly turn into customer-facing browser errors. OnlineOrNot helps you catch the problem by monitoring certificate health and sending Telegram alerts when checks start failing.

Route certbot and certificate-related failures to a Telegram group or operations channel so the right people can renew or repair certificates quickly.

Keep certificate failures out of your customers' browsers.

How to get Telegram alerts when certbot renewals fail:

Step 1

Connect Telegram

Connect @onlineornotcom_bot to the Telegram chat, group, or channel your operations team watches.

Step 2

Monitor the HTTPS endpoint

Create an uptime check for the HTTPS endpoint and enable SSL certificate verification.

Step 3

Send certificate alerts to Telegram

Select Telegram in alert settings. OnlineOrNot sends alerts when certificate validation fails and when it recovers.

No credit card required.

Frequently asked questions

: OnlineOrNot monitors the live HTTPS endpoint and SSL certificate behavior. If a failed renewal causes certificate validation to fail, OnlineOrNot can alert you in Telegram.
: Yes. Telegram alerts can go to private chats, groups, supergroups, or channels.
: No. OnlineOrNot uses @onlineornotcom_bot, so you do not need to create or store a Telegram bot token.
: Yes. OnlineOrNot sends a Telegram recovery alert when the certificate check starts passing again.

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Trusted by software teams worldwide

OnlineOrNot is built for scale and runs millions of uptime checks every week. Thousands of software teams, including some of the world's leading brands have already made the switch from other uptime monitors.

Uptime Checks last week: 11.8M
Users: 4,164
Detected incidents last week: 775

- OnlineOrNot has been absolutely fantastic for my bot, Noti. It completely transformed the way I monitor online services.
  The real-time notifications keep me in the loop about any downtime, allowing me to take immediate action. If you're looking for a reliable way to monitor your project's status, I highly suggest using OnlineOrNot.
  Adam H
  Maker of Noti
- Bet on indie hackers 🚀
  I tried @RozenMD's OnlineOrNot uptime monitoring, and for a few days got notifications of 2min down time.
  I thought that OnlineOrNot was wrong as Uptime Robot wasn't reporting anything.
  Turns out it was the other way around.
  Khaled Bentoumi
  Founder of Data to Page
- We've been using OnlineOrNot and it has been a life saver.
  It, by far, has been one of the most responsive uptime services we've tried and it only gets better and better as time goes on.
  Alex Bowles
  Founder of Casterlabs
- I just set up some site aliveness checks for @Archium_io with @RozenMD's OnlineOrNot.
  Took me less than five minutes and it was completely self-explanatory, not to mention gorgeous. Seriously good experience.
  Great job, Max! 👏👏
  Graham Lea
  Founder of Archium.io
- OnlineOrNot by @RozenMD is all one needs
  It is easy to set up and very reliable. I have been using it for almost an year now.
  Rajat Saxena
  Founder of CourseLit
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  Love it. Super clean interface, very intuitive. Particularly impressed at how it can wait for full page load
  Thanks @RozenMD for making this awesome tool!
  Louis Barclay
  Founder of Cloakist
- OnlineOrNot does the job for me.
  Charles Miller
  Software Architect at Atlassian