Statistics commonly reported by Webalizer include hits, visits, referrers, the visitors' countries, and the amount of data downloaded.

These statistics can be viewed graphically and presented by different time frames, such as by day, hour, or month.

The Webalizer analyzes web server log files, extracting such items as client's IP addresses, URL paths, processing times, user agents, referrers, etc.

The Webalizer is a command line application and is launched from the operating system shell prompt.

For example, if the webmaster would like to ignore all requests made from a particular group of hosts, he or she can use the IgnoreSite parameter to discard all log records with the IP address matching the specified pattern: There are over one hundred available configuration parameters, which make The Webalizer a highly configurable web traffic analysis application.

For a complete list of configuration parameters please refer to the README file shipped with every source or binary distribution.

The yearly summary report provides such information as the number of hits, file and page requests, hosts and visits, as well as daily averages of these counters for each month.

HTML reports may be produced reports in over 30 languages, including Catalan, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, Galician, German, Greek, Hungarian, Icelandic, Indonesian, Italian, Japanese, Korean, Latvian, Malay, Norwegian, Polish, Portuguese, Portuguese (Brazil), Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovene, Spanish, Swedish, Turkish, Ukrainian.