Testomato automated web site testing software that tests website uptime, availability, performance, and alerts webmaster of all testing problems. Checks ftp, http, pop3, snmp, https, smtp, ip, and dns server.

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

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.

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

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.

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

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.

Provides website and server monitoring, web application and email system monitoring services, with email and SMS alerts when problems are detected.

Monitors from several locations at once time. Receive alerts describing problems via email, pager and SMS.

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