DownNotifier.com!

Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.

An easy way to check whether a website is down for everybody, or just your own computer.

PingPlotter is a network troubleshooting and diagnostic tool. It uses a combination of traceroute, ping, and whois to collect data quickly - and then allows you to continue to collect data over time to give you the information you really need to identify problems (both short-term and long-term trends)

MultiPing is an application built for monitoring one or more TCP/IP hosts, while providing detailed historical information about the collection period. Using the proven and powerful PingPlotter engine technology, MultiPing allows you to monitor numerous targets simultaneously giving you the data you need to choose between multiple possible hosts (for online gaming or stock trading), to monitor uptime and performance, or just keep track of general connectivity.

NodePing Server Monitoring and Web Site Monitoring. Simple but powerful Internet service monitoring. Checks as frequent as once a minute.

Port Monitor is an easy and online tool that does website and server monitoring for you 24/7 every 60 seconds and sends you or your co-workers instant email/push notifications when something goes wrong.

"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 test tool. Just enter the url and a fresh site status test will be perfomed on the domain name in real time using our online website checker tool.

RapidSpike is an uptime and performance monitoring service for websites and web applications. It simplifies monitoring, alerting and reporting to support your online presence and to ensure a positive user experience. Organisations use it to identify problems, measure performance and improve capacity planning.

Free Website Monitoring. Be notified when your site is down.

Website monitoring service that offers a comprehensive free plan with:* escalation levels (if a first-responder contact doesn't acknowledge the downtime, another contact will be alerted)* search for text on the website to detect defacing/hacking in addition to downtime

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 with tools to fix it. But what makes us different and why should you choose us? We’ve boiled it down to three simple and unique areas that separate us from the rest of the market: Deep and Wide Monitoring, No False Alerts and Intelligent Alerting.

This program helps to visually determine the origin of connection problems. The latency over time is shown on graphs, and each instance of packet loss is marked in red.

With webcron you pay per request and you can choose the monitoring frequency to your linking. When your website goes down, webcron can send you either an email or a text message (SMS).

Site down outage and downtime reports from SiteDown.co