Dotcom-Monitor is described as 'Website & Web Application Monitoring' and is a Website Monitor in the category. There are more than 50 alternatives to Dotcom-Monitor, not only websites but also apps for a variety of platforms, including SaaS, Windows, Linux and Mac. The best alternative is UptimeRobot, which is free. Other great sites and apps similar to Dotcom-Monitor are Pingdom (Paid), Freshping (Free), Cabot (Free, Open Source) and StatusCake (Freemium).
UptimeLine makes a request to your website every minute to check that it is responding. It shows you your uptime percentage and downtime events, as well as average latency and latency over time. The free plan includes up to 50 monitors.
Monitor your website, webservices and SMTP services both on, and off-premise for not only general availability and performance - but full content checks ranging from basic keyword and HTML DOM analysis, through to more advanced functionality such as Google and Kendo UI Charting...
Downdetector monitors over 3,000 services in 25 countries including telecommunication outages (internet, phone and TV service), online banking problems, websites that go down and apps that aren’t working.