Radar Website Monitor 

Radar Website Monitor is a multithreaded website monitoring tool, watching different protocols, including HTTP(S), SMTP, POP3, FTP, TCP. It can log the server performance, generate real-time reports, and notify you upon detection of problem or error.
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Website Monitoring Expert 

Website Monitoring Expert is a multithreaded website monitoring tool, watching different protocols, including HTTP(S), SMTP, POP3, FTP, TCP. It can log the server performance, generate real-time reports, and notify you upon detection of problem or error.
website monitor website performance host monitor server monitor

ManageEngine Applications Manager 

Applications Manager is a web-based monitoring tool that manages applications, servers, databases, systems, services, websites, and JMX/SNMP-based custom applications in a complex IT infrastructure. It also offers fault and performance management.
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