NCSA Common Log Format (CLF) %h %l %u %t "%r" %s %b
NCSA Combined
%h %l %u %t "%r" %s %b "%{Referer}i" "%{User-Agent}i"
Shared NCSA CLF
%{Host}i %h %l %u %t "%r" %s %b
Shared NCSA Combined
%{Host}i %h %l %u %t "%r" %s %b "%{Referer}i" "%{User-Agent}i"
Netscape NSAPI Extended
%h %l %u %t "%r" %s %b\n"%{Referer}i" "%{User-Agent}i"
Zeus Extended Logging Format
%T|%h|%M %U|%{Content-Type}o|%s|%u|%b|%{Cookie}i|%{Referer}i|%{User-Agent}i