Article · Wikipedia archive · Last revised Jun 18, 2026

Extended Log Format

Extended Log Format (ELF) is a standardized text file format that is used by web servers when generating log files. In comparison to the Common Log Format (CLF), ELF provides more information and flexibility.

Last revised
Jun 18, 2026
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Extended Log Format (ELF) is a standardized text file format that is used by web servers when generating log files. In comparison to the Common Log Format (CLF), ELF provides more information and flexibility.

Example

#Version: 1.0
#Date: 12-Jan-1996 00:00:00
#Fields: time cs-method cs-uri
00:34:23 GET /foo/bar.html
12:21:16 GET /foo/bar.html
12:45:52 GET /foo/bar.html
12:57:34 GET /foo/bar.html
See also

See also

Sources

Sources