Webalizer

Is written in C to be extremely fast and highly portable. On my 1.6Ghz laptop, it can process close to 70,000 records per second, which means a log file with roughly 2 million hits can be analyzed in about 30 seconds. Handles standard Common logfile format (CLF) server logs, several variations of the NCSA Combined logfile format, wu-ftpd/proftpd xferlog (FTP) format logs, Squid proxy server native format, and W3C Extended log formats. In addition, gzip (.gz) and bzip2 (.bz2) compressed logs may be used directly without the need for uncompressing. Generated reports can be configured from the command line, or more commonly, by the use of one or more configuration files. Detailed information on configuration options can be found in the README file, supplied with all distributions.
Supports multiple languages. Currently, Albanian, Arabic, Catalan, Chinese (traditional and simplified), Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, Galician, German, Greek, Hungarian, Ic