Tips for Analyzing System Log Files

Check Date and Time

Web page access will leave a detailed time, which is generated by the server rather than the client time, and cannot be changed at will. Therefore, you can generate a report for the site based on the time frequency.

Tracking Client IP Address

This is useful for querying geographical information. Most log analysis software can perform the query function based on IP addresses to determine the country, region, city, and even the company in which the user is located.

Check the user request path and file

This type of information is very useful to Web administrators and is used for custom Analysis of page access conditions, including logon, exit, and path analysis (usually combined with additional information such as IP addresses ).

Access status (CODE)

Web access can be divided into multiple time periods, and the access status is analyzed accordingly: Successful access takes less than 200 seconds; more than 300 seconds means that the client is redirected to different pages; 400 stopwatch client error (for example, 404 file not found); in any case, reaching 500 seconds means a server error (for example, an ASP Script Error ). Status code is used to generate some technical information in the log analysis report.

Check the User Agent

The purpose is to check the visitor's browser version and operating system type to help detect problems that may arise from browser or operating system compatibility, then, the website is improved by using specific technologies for frequently-used browsers/operating systems.

View access Source

When analyzing request pages or files, whether they are directly accessed from the internal site or from the external Web page, that is, viewing the access source, from the search engine or from a third-party page.