Multiping - Get MultiPing Support. Network monitoring in 60 seconds. MultiPing provides a graphical view of network performance, monitors hundreds of targets, and sends automatic alerts..
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
SmokePing - Smokeping is a tool for measuring latency.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
Fping (open source) - fping is a program to send ICMP echo probes to network hosts, similar to ping, but much better performing when pinging multiple hosts.
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...