NetCrunch 9 is an all-in-one and agentless network monitoring and management system, capable of monitoring every device in you ...

All-in-one uptime monitoring suite Instant downtime alert Freshping monitors your website every minute & notifies instantl ...

Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web page ...

Cabot is a free, open-source, self-hosted infrastructure monitoring platform that provides some of the best features of PagerD ...

Comprehensive website and web application monitoring:

• simulate a real browser (Firefox) to check performance
• services monitor ...

PHP Server Monitor is a script that checks whether your websites and servers are up and running. It comes with a web based use ...

Monitors the performance of your websites, DNS, and email servers along with blacklist monitoring. Get alerts by e-mail and SM ...

Uptime monitor for server. Allows to monitor unlimited servers and websites. With custom CNAME you can create live status pages.

intoDNS checks the health and configuration of DNS and mail servers.

Monitors your websites every 5 minutes, totally free. Get alerts by e-mail, SMS, Twitter or RSS. Add up to 50 websites. Monito ...

StatusCake enables the visitor to track unlimited websites for free and get alerts when the site is down or having trouble. St ...

Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure upti ...

"Is It Down Right Now" monitors the status of your favorite web sites and checks whether they are down or not. Check a website ...

Mist.io is an open source software and a freemium service that helps you manage and monitor virtual machines (VMs) across mult ...

Website monitoring service that offers a comprehensive free plan with:

• escalation levels (if a first-responder contact doesn' ...