If you have ever worked with Microsoft ISA server you may have heard of “GFI WebMonitor”, “GFI WebMonitor” is an add on to the ISA server (it does also exist as a standalone server application) that will allow for Malware, Virus scanning along with traffic analysis and extended logging of HTTP traffic thus protecting workstations against ‘drive by infections’ and other script dangers while surfing.
The news part is that GFI now offer a freeware version, the freeware version is however limited to logging and statistics thus the Malware and Virus protection is turned off in the freeware version after 30 days. But still the logging and statistics functionality is not half bad for free.
So if you are looking for traffic logging and analysis this may be worth a look.
Get it here;