Dotcom-Monitor

Website & Web Application Monitoring Dotcom-Monitor instantly alerts you when your website has problems. Detailed diagnostics enable you to take quick corrective...

Commercial Web

Are My Sites Up?

SIMPLE Website monitoring. If your website goes down, shouldnt YOU be the first to know about it?

Commercial Web

Monitoshi

Website uptime monitoring. Be notified by email when your site is down. Free and open source, monitor as many URLs as you want. You can hack it and host it yourself or...

Free Open Source Web

Uptime Doctor

You can monitor up to 5 URLs with 1-minute monitoring interval, for FREE!

Free Web

EZ Website Monitoring

EZ Website Monitoring provides keyword rank tracking, uptime monitoring, and error checking for your website.

Freemium Web

DownNotifier.com

Free quality website monitoring.

Free Web

Global Server Monitoring

A powerful dedicated service that enables server and website administrators to check the performance of websites, application servers, databases and mail servers. Global...

Commercial Web

ping-di-pong

Simple website monitoring with a pay-as-you-go pricing model. Will monitor sites between 1 minute and 1 hour. Monitors http, https and ping.

Commercial Web

AlertFox Website Monitoring

AlertFox can monitor even complicated steps, (e.g., the complete check out process, not just store uptime)! Only AlertFox can monitor the function and performance of...

Commercial Mac OS X Windows Linux Web Firefox

updown.io

updown.io is a HTTP monitoring solution with a clean UI and a cheap and simple pricing. It notifies you of downtimes by email or SMS and provides a public status page...

Commercial Web

Uptime

uptime is a remote monitoring application using Node.js, MongoDB, and Twitter Bootstrap.

Free Open Source Web Node.JS MongoDB

247webmonitoring

Free website monitoring upto 5 free websites monitored, free email and uptime reports. Having a reliably functioning website is essential for the success of your...

Freemium Web

Nonstop QA

Incredibly easy and comprehensive website monitoring.

Freemium Web

Server Monitoring

Server Monitoring lets you monitor your servers and your websites for free with 4 minute intervals. Monitor websites with HTTP monitoring and get notified immediately...

Free Web

UptimeButler

UptimeButler is a modern Software as a Service (SaaS) product for website availability monitoring. Whether you own a small online shop or run a big company, your...

Commercial Web

Servers Alive

Servers Alive is an end-to-end network monitoring tool running on Windows 2003/2008/XP/Vista/7. It works agentless and across operating systems. Its checks and alerts...

Commercial Windows Linux

Freesitestatus

Free website and server monitoring. Remote website, web server & server monitoring from worldwide locations with SMS & Email alerts.

Freemium Web

GotSiteMonitor.com

Website Monitoring - Monitor your website uptime and HTTP/FTP/SMTP/POP3 services. Real-time Phone and SMS alerts. Free website monitors available.

Freemium Web

ServersUp.net

ServersUp.net can check a number of different services on different hosts to make sure those services are up and running. It will send alerts when the statuses change.

Free Web

Servitor.io

Servitor is the easiest way to monitor your servers and website for resources, uptime, ssl certificates, mixed contents en broken links.

Freemium Linux Web