Pingdom

An easy and online tool that does website monitoring and server monitoring for you 24/7. Record uptime, response times (performance) and downtime causes. Generate your own custom reports. Using Port …

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 …

Monitors your websites every 5 minutes, totally free. Get alerts by e-mail, SMS, Twitter or RSS. Add up to 50 websites. Monitors can be refreshed for an instant check with …

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...

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

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

Monitor your website from worldwide locations 24x7 and be the first to know when your website is down. Receive instant alerts via SMS, email & twitter. Detailed uptime, performance & …

Commercial service offering comprehensive website, server, network, logs and application monitoring, statistical analysis, cloud server monitoring, and performance metrics. It also provides load testing as...

With us, your website will always be available and friendly to customers. Around the clock we will watch over your website. In the event of any emergency, problem or error …

UptimeFu is a simple and effective tool to monitor the status and availability of your websites. You can track multiple websites and will receive an email notification if your site …

Your website early warning system. Get notifications if your website goes offline, starts running slowly or reports errors. Erlywarn is an monitoring service with a wide range of notification options....

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

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.

Panopta provides advanced server monitoring and outage management services to both enterprises and SMBs. We will be the first to tell you if your infrastructure is down and provide you …

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 …

Wormly offers server monitoring, website monitoring and uptime monitoring to keep you online and performing fast. Remote monitoring from outside the firewall alerts you when failures occur, while internal...

Monitor uptime for your websites and servers, the easy way

1 minute availability monitoring service for only $4.92/month. Monitoring stations on 4 continents, email, SMS and RSS alerts.

Website monitoring (HTTP HEAD/GET), service monitoring (TCP socket test), e-mail and URL alerts. Open source at https://github.com/TomHetmer/Runtime

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. …

Webmon is a Realtime Website Monitoring and Escalation Service. Webmon is a website availability monitoring and escalation service that allows you to monitor your online services and get notified upon...

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.

These days, almost everyone has a website, and it's important that those websites are always up and running. Server Siren monitors your servers and alerts you if there are any …