Based on our record, Dotcom-Monitor seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
And then nagios and dotcom-monitor.com alerts for certificates nearing expiry. Source: almost 2 years ago
UptimeRobot - Free Website Uptime Monitoring
Fping (open source) - fping is a program to send ICMP echo probes to network hosts, similar to ping, but much better performing when pinging multiple hosts.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
NetTK - NetTK, Network Tool Kit, is an Open Source alternative for monitoring and troubleshooting your...
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
NetCrunch Tools - Our free network tools offer ping scanning, SNMP scanning, port and network service scanning, and more.