Pingdom

StatusCake enables the visitor to track unlimited websites for free and get alerts when the site is down or having trouble. StatusCake also tracks performance over time so a webmaster …

Pingoscope will carefully monitor your website and alert you instantly if it goes down. Unlimited email SMS, Skype, Phone Call notifications, historical response time data, one minute check intervals data …

Provides free real time 24/7 website and server monitoring from geographically distributed servers with personalized Ajax interface, server performance testing, uptime reporting, traffic analysis and alarm...

PushMon is a new kind of cloud-based monitoring system. Instead of checking public facing servers on a regular basis, PushMon will wait for pings from the objects being monitored. These …

Website monitoring from CopperEgg tests your websites and web applications every 15 seconds from its global testing stations, improving accuracy and decreasing false alarms. Coupled with CopperEgg server...

Website Monitoring from a Global Perspective. Easy, fast and effective web server monitoring, server monitoring and website monitoring service.

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

BinaryCanary.com helps individuals, businesses, associations and agencies that want a consistent, result-driven web presence. With the state of the global recession, BinaryCanary.com's “one-minute...

Monitor 2 websites with 15 min interval for FREE! Checks your website every 15 minutes. Get trouble alerts by email or sms. Instant alert through SMS, email notifications, tweet, feeds …

The website monitoring service that doesn't suck. Get an email when your website goes down. Statuses are available by email, web, RSS feeds and widgets.

Automatically check your website's uptime, performance & quality with Simonbot. Be the first to know if something is going wrong with your website, get results, analyse them and find bottlenecks. …

WebSitePulse is a leading provider of advanced, independent and remote monitoring services that enable clients to increase the efficiency of their mission-critical e-business operations, and to reduce their...

Snapmon lets you monitor your servers to make sure everything is running. When a server goes down, you can be notified by SMS Text Message, Email, AIM, or Google Talk.