Visitors Web Log Analyzer is a very fast web log analyzer for Linux, Windows, and other Unix-like operating systems. It takes as input a web server log file, and outputs statistics in form of different reports. The design principles are very different compared to other software of the same type:
No installation required, can process up to 150,000 lines of log entries per second in fast computers (20MB/s with my log files average length).
Designed to be executed by the command line, output html and text reports. The text report can be used in pipe to less to check web stats from ssh.
Support for real time statistics with the Visitors Stream Mode introduced with version 0.3.
To specify the log format is not needed at all. Works out of box with apache and most other web servers with a standard log format (see the documentation for more information on the format).
It's a portable C program, can be compiled on many different systems. Binaries for Windows systems are in the Download section of this page.
The produced html report doesn't contain images or external CSS, is self-contained, you can send it by email to users.
Visitors is free software (and of course, freeware), under the terms of the GPL license. You don't need to pay to use it. Visitors is supported, if you want a custom version made directly by the original author for a modest price, contact me at antirez (at) invece.org. ISPs may take advantage of the high processing speed.
What is new in this release:
- Changes for the 0.7 version include: --grep and --exclude options to process only line matching or not matching specified patterns. Patterns can include jolly characters like *, ?, ranges of chars and so on, this kind of matching is called glob-style matching (see the online documentation for more information). Multiple grep/exclude patterns can be used at the same time and are processed sequentially. Added --ignore-404 in order to avoid that 404 errors are processed like other log lines to create statistics, useful for sites where there are a number of requests producing 404 error codes. A new report about users screen resolution and color depth was added, but only works after the inclusion of the javascript code you can find in the README file on your web pages. Some other minor fix.
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