StatusPage.io
Allows you to post in detail about specific downtime incidents.
Apica
Monitoring software that predicts crashes, and tests web and mobile apps.
Webmon
Monitor the uptime of your website and other infrastructure.
Uptime Robot
A website monitoring service that provides up to 50 monitors for free.
StatusCake
A website monitoring service that alerts you to downtime & performance issues.
Site24x7
Helps monitor the uptime and performance of websites, applications, & servers.
Pingdom
Monitor the uptime of your website and other infrastructure.
NodePing
Monitors servers and websites such as: HTTP(S), SMTP, DNS, PING, and many more.
Uptime.com
Uptime.com is a website performance, health and downtime monitoring tool and functions by means of ‘Checks’.
Auvik
A cloud-based network monitoring software for automating complex network tasks
