Background Information (AWStats)

AWStats is a free tool that generates advanced web server access
statistics graphically. This web server log analyzer works as a CGI or from command line and shows you all possible information your log contains, in few graphical web pages. It uses a partial information file to be able to process large log files, often and quickly. It can analyze log files from IIS (W3C log format), Apache log files (NCSA combined/XLF/ELF log format or common/CLF log format), WebStar and some other web, proxy or WAP servers (and even some FTP servers).