Compares performance of different parameters, for available Web Servers, under test.
3D Graphical output.
Executes benchmarks based on both Time and Request.
Secured login for authorized access to benchmark files.
Single machine and multi-machine support.
Allows simulation of 1000+ clients per machine.
Provides sample CGI, ISAPI and static workload files.
Supports HTTP 1.1 Keep-Alive connections, sends HTTP GET and POST requests.

Web Essence is the Commercial version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  30USD.