Port Monitor
Freemium
Port Monitor is an easy tool that does website and server monitoring 24/7 every 60 seconds for free.
Down For Everyone Or Just Me enables users to check whether a specific website is inaccessible for everyone or only for them.
Monitis
Freemium
Monitis is a web performance monitoring platform.
Pingdom
Commercial
Pingdom helps you give your customers the best possible web experience by offering a Powerful Web Performance Monitoring Solution.
HappyApps
Freemium
HappyApps is an online app uptime monitoring platform.
Pingoscope
Freemium
Pingoscope is a website monitoring site.
Compare Site Down with alternatives
Compare Port Monitor and Site Down and decide which is most suitable for you.
Compare Down For Everyone Or Just Me? and Site Down and decide which is most suitable for you.
Compare HappyApps and Site Down and decide which is most suitable for you.
Compare Pingoscope and Site Down and decide which is most suitable for you.