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Web Access Logs

Web access log analysis has many benefits. It can help support web development in your catalog by focusing your efforts on the most used pages. It identifies web browsers used by patrons, allowing you to test with the same browsers. It can substantiate the investments you make in new functionality for your web systems, by tracking changes in traffic over time.

Documentation about web access logs and how to use them is available on CSDirect. Documentation on the wiki is contributed to by customers and is based on their user experience.

Log Analysis Tools

There are many choices for log analysis software. If you would like to add a third-party software recommendation, you may want to consider the following:

  • Easy for any library software administrator to set up and use
  • Free to download and operate
  • Able to read the Apache log format (the port number followed by a space appears at the beginning of each line before the remote address)
  • Works on a local system with logs downloaded from the server

Software Options and Recommendations
These options have been recommended by your peers. However, this is not a substitute for your own research. Remember to read all documentation carefully and determine if a particular package is right for your system environment. Thatís not just a disclaimer, itís good advice!

Log Format

The logs are written in Apache log format. There is a slight change in Release 2007 1.1 and later releases. The original:
%p %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i" %d
The only difference in 1.1 is the time field. It is now an upper case D instead of lower case. This gives the page load time in microseconds rather than seconds, which is more meaningful. The full string is now:
%p %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i" %D
Topic revision: r9 - 28 Jun 2012 - 14:16:41 - Innovative Admin
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