WebLog Expert is a fast and powerful Apache log analyzer. It can analyze Apache log files in Combined and Common formats and give you information about your site's visitors: activity statistics, accessed files, paths through the site, information about referring pages, search engines, browsers, operating systems, and more. View the WebLog Expert sample report to get the general idea of the variety of information about your site's usage it can provide. | | |  | |  | | | | Program interface | | Sample report | | | |
You can download free fully functional 30-day trial version of WebLog Expert Std/Pro/Ent. The program is also an IIS log analyzer, it can analyze IIS log files in W3C Extended format. The program supports Combined and Common log formats of the Apache web server. We recommend you to use the Combined log format because the Common log format doesn't contain information about referrers and user agents (OS, browsers, spiders). By default Apache creates log files in the Common format but the majority of hosting providers set the Combined log format for Apache on their servers. Here is a sample of log entry in Combined format:
213.135.131.79 - - [15/May/2002:19:21:49 -0400] "GET /features.htm HTTP/1.1" 200 9955 "http://www.weblogexpert.com/download.htm" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Q312461)" Log format can be configured by editing the "httpd.conf" file in the Apache conf directory (if you have access to this file). The configuration settings for the log file should look like the following: # The following directive defines the "combined" nickname
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
# The location and format of the access log file
CustomLog logs/access.log combined
If your Apache log files contain information about multiple virtual domains (sites) hosted on the same server, you can also use the following configuration settings:
# The following directive defines the "combinedvhost" nickname
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %v" combinedvhost
# The location and format of the access log file
CustomLog logs/access.log combinedvhost
In this case log entries will have Combined format with one extra field so you will be able to get log file analysis reports on virtual domains and filter data by this field. You can read more about Apache logs at http://httpd.apache.org/docs/logs.html | 
