I received the following email from info@m.uptime-monitor.io, claiming that the free plan of UptimeRobot will be discontinued on March 23, 2026 and that I should switch to a paid plan at uptime-monitor.io.

Sender email address: UptimeRobot [Uptime Monitor] (info@m.uptime-monitor.io)

Dear Uptime Monitor user,

Thank you for being part of the Uptime Monitor community. We truly appreciate your trust in our service.

We're reaching out to let you know that we will be transitioning away from the free plan. Your monitors will continue working as usual until March 23, 2026.

To continue monitoring after that date, you can select a paid plan at:
https://uptime-monitor.io/dashboard/billing

Plans start at $4.95/month for up to 10 monitors, and we offer a 7-day free trial so you can try it out first.

If you have any questions or need help choosing a plan, simply reply to this email — we're happy to help.

Thank you for using Uptime Monitor!

This already looked suspicious to me because:

• The sender domain is m.uptime-monitor.io
• The website uptime-monitor.io looks generic and somewhat AI-generated
• I have not seen any official announcement about discontinuing the free plan

To verify this, I contacted the chatbot on the official website of UptimeRobot. The response I received was:

“That email did not come from us. The domain ‘uptime-monitor.io’ is not associated with UptimeRobot - this appears to be a fraudulent email attempting to impersonate our service.
Our official domain is uptimerobot.com and our legitimate emails come from @uptimerobot.com addresses. We have no plans to discontinue our free service.
Please do not click any links or provide any information to that suspicious sender. We recommend marking it as spam and deleting it.
Our free plan remains available with 50 monitors and we continue to support it alongside our paid plans.”

I have just discovered something much more concerning: I was able to log in at uptime-monitor.io using my actual UptimeRobot credentials.

This makes me seriously worried that I may have fallen into a credential harvesting / phishing trap. If this site is not officially affiliated with UptimeRobot, then it appears to be actively collecting real user login data.

If anyone else received this email, please be extremely careful and do not attempt to log in there.

At this point, I strongly recommend that affected users immediately change their passwords on the official UptimeRobot website and enable additional security measures if available.

So this strongly suggests that the email is a phishing attempt.

I’m posting this here to ask:

• Has anyone else received this email?
• Has anyone investigated uptime-monitor.io further?

Please be careful and do not click any links in that message.

Thanks. Greetings, Andy