W3Perl

W3Perl is a powerful logfile analyser for web/ftp/squid and email servers. Reports are available in HTML/PDF output, and can be sent by email. Stats from real-time to yearly output, countries, hosts, pages, directories, domain stats, referers, browsers, sessions and much more. Can work with crunched logfiles or/and with monthly/daily logfiles. A web based administration interface allow you to manage your configuration files and run the stats remotely.