VisualPulse Web Edition 

VisualPulse enables 24x7 Web-based monitoring of Web pages, servers and network nodes, reporting Ping, HTTP, SNMP, and TCP performance and easy-access Web-based reports. Provides automated alerts and traceroute capture for problem analysis.
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Guard Web Pro 

monitor a site data and connection time and alert threw mail or phone.
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Guard Web 

monitor a site data and connection time and alert threw mail or phone.
site http monitor alert mail phone network connection delay news