URL https://dashboard.uptimerobot.com, we recommend registering with an email address to receive notifications
UptimeRobot Free Features Explanation
Number of Monitors
- A maximum of 50 monitors
- More than enough for personal VPS/website
Detection Frequency
- Detected every 5 minutes
- Cannot be changed to 1 minute (that’s the paid version)
Explanation:
If your VPS goes down, you will receive a notification within 5 minutes.
Supported Monitor Types
Free version supports the following types:
Ping Monitoring
- Checks if your VPS IP is online
- Suitable for detecting server downtime
Port Monitoring
-
Detects whether a specific port is open (e.g., 22 / 443 / 2096)
-
More accurate than Ping
-
Suitable for detecting:
- SSH
- Hysteria2
- Web services
HTTP / HTTPS Monitoring
- Checks if the website is accessible
- Detects whether it returns a 200 status code
- Supports SSL certificate expiration reminders (this should be a paid feature)
Notification Methods (Available for Free)
Email notifications and others
Mechanism explanation:
- Alerts only when there are consecutive failures (not frequent)
- Sends a “recovery notification” when back online
After using it for a while, I found it quite good and decided to share it.


