CooJah 6 can capture the whole response header from web server. Thus it can filter out the content type from response header. This can be very useful where the URL is dynamic, e.g., the URL is cgi, php, jsp, asp. For example, the following URL:

http://id.91cool.net/sign/?name=%CB%D5%BA%E3%B5%CF&say=%CE%C4%BC%FE%C0%E0%D0%CD%BC%EC%B2%E2%CA%BE%C0%FD

We don't know the exact file type from the URL. But CooJah can automatically analyze that its real type is gif.

File Type Detect feature is turned of by default. You can turn it on in the Sniffer Settings page.