Web site monitoring notifies you via email when a web site is down or new content has been posted.

Web site monitoring supporting group notifications, multiple source locations, and WAP-enabled status checking.

Tests the accessibility of entire web site on a weekly schedule. Monitors compliance with Section 508 Standards, W3C WCAG 1.0 Priority 1-3 Guidelines, and/or IBM Accessibility Guidelines. Email alerts and web-based reporting.

External website performance monitoring and competitor benchmarking from test locations in Australia, Asia and US. Escalating alerts with a wide variety of alert methods.

Unified incident handling solution alerting via SMS, e-mail, voice alerts, and pagers.

Web site monitoring service that tests website availability, performance, and alerts webmaster of downtime. Also provides ftp, http, pop3, snmp, https, smtp, ip, and dns server monitoring.

Remote website and network performance monitoring service that will email or page you if your internet device or software is down or slow to respond.

Remote web site monitoring and failure notification from global network, supports http, https, ping, smtp, pop3, imap4, ftp and tcp-level checks.

Monitors the availability and performance of web sites and internet services as often as every minute from multiple geographic locations. Alerts via email, pager, SMS, cell.

Watches your web site 24 hours a day, 7 days a week. It will send immediate alerts via email/pager, fax, or live voice if your site is down or broken.

European web server monitoring services and availability measurements.

Secure website availability monitoring and alerts by e-mail and SMS for UK hosted websites.

Remotely monitors your server and alerts you instantly via SMS, MSN Messenger and/or e-mail. Each week you receive a server ranking and reports of statistics.

Automatic check if a Web site is up or down and response times for the server. Also provides some site statistics.

Provides web-based network monitoring solutions.

Provides free monitoring and instant alert for many different kinds of systems like web site, DNS, and Mail server. Alerts are sent to email, phone, or pager.

Global web site monitoring service providing web application monitoring, network monitoring, website load stress testing with reporting, notification, escalation and analysis in one single solution.

A free service that monitors your website 24 hours a day, 7 days a week and notifies you when your site goes down.

Monitors websites and other internet servers for availability and performance. Alerts users when their sites or servers are unavailable or performing poorly. Alerts via email, pager, or SMS. Free trial.

Range of client-side browser based test services based on use of the CAPBAK/Web product.

Web based network monitoring tools used to verify your website and services are up and running at all times. Provides a full range of monitoring tools for internet and IT systems. Service will check, notify, and report any problems with the services your business relies on.

Checks the status of your web server from different monitoring servers in different locations around the world.

Server port monitoring, content checking, host process verification, and router latency/packet loss monitoring.

Online service which allows you to specify Internet resources, web sites, or keywords that you want monitored.

Remotely monitors Web sites and provides alerts by email or pager email when sites becomes unavailable. Free limited option available.

Sends email or instant message notification of website service outages.

Providing application performance, configuration management and network monitoring software solutions.

Application that monitors your site through code that you place on your web page. Free version available.

Advanced web site monitoring service which tests website availability from worldwide network of servers. Includes extensive reports for web site performance, downtime, ssl, http, smtp, pop3 server monitoring, and instant alerts.

Monitors availability and performance of web sites, dns, and ftp, including web content checking.

Checks websites every five minutes and lets the client know if there are problems by eMail, fax, or SMS. Free trial available.

PingALink monitors each of your servers 12 times an hour, 24/7, and alerts you to their status by email, pager, cell phone, PDA or ICQ.

Monitors faults and performances of devices, hardware components, applications, databases, services, networks.

Subscription monitoring service.

Offering free site stats and free 500 URL submissions to top search engines.

Capable of sending SMS text messages. 14 day trial available.

Remotely monitors your web site and immediately notifies you when your web site is down.

Know your web site is down before your customers tell you.

Customized monitoring solutions to ensure your site is up and functioning properly 24 hours a day, seven days a week.

Monitor your site in intervals from 1-30 minutes. HTTP-check, content check and defacement check. Advanced statictics options. Alert via e-mail and SMS. 14 days free trial.

Web site availability and performance monitoring. Provides automated alerts, graphs, and daily/weekly reports via email.

Tool that checks the status of your website hourly. Free limited option available.

Independent 24/7/365 web site monitoring, notification, and performance verification of mission critical HTTP, HTTPS, FTP, and SMTP servers. Free web site security tools to assist in keeping your site operational.

Monitors various internet services including web, mail, DNS, and SQL databases. URL monitoring from multiple global backbones. Free 10-day trial.

Free website monitoring services. Receive instant email notices when your website becomes unavailable. Provides detailed web based statistics and performance reports.

Online interface to trigger ping and traceroute tests from more than 200 locations all over the world.

Free website monitoring service based on retrieving a short text file. E-mail and/or pager notification. With an overall list of monitored sites and their status.

Website monitoring service, monitors web, e-mail, FTP and a number of other Internet services. Provides alerts via email, SMS/text message, and voice telephone. Free time-limited trial available.

A facility to constantly monitor your web site and inform you if there is a problem. Both Free and Premium acounts available.

Monitor web sites, multi-page web transactions, and audio/video content. Some free services available.

Offers server monitoring with SMS notification. Covers web, mail, and DNS protocols.

Monitors website status and sends instant notification when it is not reachable. Demo and purchasing information.

Offers 24-hour site monitoring service. Tracks web site performance and accessibility from five global monitoring locations.

The European site monitoring service, checks servers 24 hour a day, 7 days a week. Offers free and paid services such as web, mail, FTP, and IMAP.

Offers four monitoring and testing services to ensure your site is up 24/7.

Free internet server status monitoring, alerts by e-mail.

Monitors your web site from the US or Europe.

Customized web-based monitoring services to ensure your web site is up and functioning properly 24/7. Free service available.

The 24-hour monitoring service that lets you know the moment your website goes offline.

Web site and service port monitoring with email alerts and free 30-day trial. Can search for text in a web page to verify site is up.