Extended Log Format
Extended Log Format is a standardized text file format that is used by web servers when generating log files. In comparison to the Common Log Format, ELF provides more information and flexibility.
Example
00:34:23 GET /foo/bar.html
- Version: 1.0
- Date: 12-Jan-1996 00:00:00
- Fields: time cs-method cs-uri
12:21:16 GET /foo/bar.html
12:45:52 GET /foo/bar.html
12:57:34 GET /foo/bar.html