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.
Pingoscope
Freemium
Pingoscope is a website monitoring site.
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.
PHP Server Monitor
Open Source
PHP Server Monitor is an open source tool to monitor your servers and websites.
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Compare PHP Server Monitor and Site Down and decide which is most suitable for you.
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