  |
SiteUptime - http://www.siteuptime.com
Free website monitoring services. Receive instant email notices when your website becomes unavailable. Provides detailed web based statistics and performance reports. |
  |
AlertSite - http://www.alertsite.com/
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. |
  |
AlertBot - http://www.alertbot.com
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. |
  |
InternetSeer - http://www.InternetSeer.com/
Remotely monitors Web sites and provides alerts by email or pager email when sites becomes unavailable. Free limited option available. |
  |
WebSitePulse - http://www.websitepulse.com/
Provides website and server monitoring, web application and email system monitoring services, with email and SMS alerts when problems are detected. |
  |
Dotcom-Monitor - http://www.dotcom-monitor.com/
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. |
  |
Mercury SiteScope - http://www.mercury.com/us/products/application-management/foundation/monitors/sitescope/
Providing application performance, configuration management and network monitoring software solutions. |
  |
PingALink - http://www.pingalink.com/
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. |
  |
TraceRT - http://www.tracert.com/
Online interface to trigger ping and traceroute tests from more than 200 locations all over the world. |
  |
WatchMouse - http://www.watchmouse.com/
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. |
  |
Alertra - http://www.alertra.com/
Remote web site monitoring and failure notification from global network, supports http, https, ping, smtp, pop3, imap4, ftp and tcp-level checks. |
  |
Uptime - http://uptime.openacs.org/uptime/
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. |
  |
HostGuardian - http://www.hostguardian.com/
Server port monitoring, content checking, host process verification, and router latency/packet loss monitoring. |
  |
Red Alert - http://www.redalert.com/
Subscription monitoring service. |
  |
InternetCM - http://www.internetcm.com
Online service which allows you to specify Internet resources, web sites, or keywords that you want monitored. |
  |
Netmon - http://www.netmon.com/
Application that monitors your site through code that you place on your web page. Free version available. |
  |
At Watch - http://www.atwatch.com/
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. |
  |
SiteRecon - http://www.siterecon.com
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. |
  |
Website Alert - http://websitealert.net/
Free internet server status monitoring, alerts by e-mail. |
  |
AlertMeFirst.com - http://www.alertmefirst.com/
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. |
  |
WatchDog - http://watchdog.mycomputer.com/
Monitors website status and sends instant notification when it is not reachable. Demo and purchasing information. |
  |
Watchdog Host Monitor - http://www.web-site-tools.com/watchdo.htm
Offers 24-hour site monitoring service. Tracks web site performance and accessibility from five global monitoring locations. |
  |
Website Availability - http://www.websiteavailability.com/
Monitors your web site from the US or Europe. |
  |
ElkMonitor - http://www.elkmonitor.com/
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. |
  |
NetWhistle - http://www.netwhistle.com
Advanced web site monitoring service which tests website availability from worldwide network of servers. Includes reports for web site performance, downtime, ssl, http, smtp, pop3 server monitoring, and instant alerts. |
  |
Vertain - http://www.vertain.com/
Monitor web sites, multi-page web transactions, and audio/video content. Some free services available. |
  |
SiteMonitors - http://www.sitemonitors.com/
Web site availability and performance monitoring. Provides automated alerts, graphs, and daily/weekly reports via email. |
  |
SiteProbe - http://www.siteprobe.com/
Tool that checks the status of your website hourly. Free limited option available. |
  |
IPWatcher.com - http://www.ipwatcher.com/
Sends email or instant message notification of website service outages. |
  |
Site Guardian - http://www.siteguardian.com/
Customized monitoring solutions to ensure your site is up and functioning properly 24 hours a day, seven days a week. |