most useful Webalizer conf commands:

The Hide, Group and Ignore and Include keywords allow you to change the way Sites, URLs, Referrers, User Agents and Usernames are manipulated.

The Ignore,Include keywords will cause The Webalizer to completely ignore records as if they didn't exist (and thus not counted in the main site totals).

The Hide keywords will prevent things from being displayed in the 'Top' tables, but will still be counted in the main totals.

The Group keywords allow grouping similar objects as if they were one. Grouped records are displayed in the 'Top' tables and can optionally be displayed in BOLD and/or shaded. Groups cannot be hidden, and are not counted in the main totals. The Group options do not, by default, hide all the items that it matches. If you want to hide the records that match (so just the grouping record is displayed), follow with an identical Hide* keyword with the same value. (see example below) In addition, Group* keywords may have an optional label which will be displayed instead of the keywords value. The label should be seperated from the value by at least one 'white-space' character, such as a space or tab.

The value can have either a leading or trailing '*' wildcard character. If no wildcard is found, a match can occur anywhere in the string. Given a string "", the values "your", "*" and "www.your*" will all match.

# Your own site should be hidden
#HideSite        *
#HideSite        localhost 
Your own site gives most referrals
This one hides non-referrers ("-" Direct requests)
#HideReferrer        Direct Request
# Usually you want to hide these
HideURL      *.gif
HideURL      *.GIF
HideURL      *.jpg
HideURL      *.JPG
HideURL      *.png
HideURL      *.PNG
HideURL      *.ra
Hiding agents is kind of futile
#HideAgent        RealPlayer
# You can also hide based on authenticated username
#HideUser        root
#HideUser        admin 
# HideAllSites allows forcing individual sites to be hidden in the report. This is particularly useful when used in conjunction with the "GroupDomain" feature, but could be useful in other situations as well, such as when you only want to display grouped sites (with the GroupSite keywords...).
The value for this keyword can be either 'yes' or 'no', with 'no' the default, allowing individual sites to be displayed.
#HideAllSites        no 

# Grouping options
#GroupURL        /cgi-bin/*        CGI Scripts
#GroupURL        /images/*        Images

#GroupSite        *
#GroupSite        *

#GroupReferrer        Yahoo!
#GroupReferrer     Excite
#GroupReferrer   InfoSeek
#GroupReferrer WebCrawler

#GroupUser      root            Admin users
#GroupUser      admin           Admin users
#GroupUser      wheel           Admin users
# The following is a great way to get an overall total for browsers, and not display all the detail records. (You should use MangleAgent to refine further...)

#GroupAgent       MSIE                Micro$oft Internet Exploder
#HideAgent        MSIE
#GroupAgent       Mozilla                Netscape
#HideAgent        Mozilla
#GroupAgent       Lynx*                Lynx
#HideAgent        Lynx* 
The GroupDomains keyword allows you to group individual hostnames into their respective domains. The value specifies the level of grouping to perform, and can be thought of as 'the number of dots' that will be displayed. For example, if a visiting host is named, a domain grouping of 1 will result in just "" being displayed, while a 2 will result in "".
The default value of zero disable this feature. Domains will only be grouped if they do not match any existing "GroupSite" records, which allows overriding this feature with your own if desired.
#GroupDomains        0 
The GroupShading allows grouped rows to be shaded in the report. Useful if you have lots of groups and individual records that intermingle in the report, and you want to diferentiate the group records a little more.
Value can be 'yes' or 'no', with 'yes' being the default.
#GroupShading        yes 
# GroupHighlight allows the group record to be displayed in BOLD.
Can be either 'yes' or 'no' with the default 'yes'.
#GroupHighlight      yes 
The Ignore keywords allow you to completely ignore log records based on hostname, URL, user agent, referrer or username. I hessitated in adding these, since the Webalizer was designed to generate _accurate_ statistics about a web servers performance. By choosing to ignore records, the accuracy of reports become skewed, negating why I wrote this program in the first place. However, due to popular demand, here they are. Use the same as the Hide* keywords, where the value can have a leading or trailing wildcard '*'. Use at your own risk ;)
#IgnoreURL      /test*
#IgnoreReferrer file:/*
#IgnoreAgent    RealPlayer
#IgnoreUser     root 
# The Include keywords allow you to force the inclusion of log records based on hostname, URL, user agent, referrer or username. They take precidence over the Ignore keywords. Note: Using Ignore/Include combinations to selectivly process parts of a web site is _extremely inefficent_!!! Avoid doing so if possible (ie: grep the records to a seperate file if you really want that kind of report).

# Example: Only show stats on Joe User's pages...

#IgnoreURL        *
#IncludeURL        ~joeuser* 
# Or based on an authenticated username
#IgnoreUser     *
#IncludeUser    someuser 

MangleAgents allows you to specify how much, if any, The Webalizer should mangle user agent names. This allows several levels of detail to be produced when reporting user agent statistics. There are six levels that can be specified, which define different levels of detail supression. Level 5 shows only the browser name (MSIE or Mozilla) and the major version number. Level 4 adds the minor version number (single decimal place). Level 3 displays the minor version to two decimal places. Level 2 will add any sub-level designation (such as Mozilla/3.01Gold or MSIE 3.0b). Level 1 will attempt to also add the system type if it is specified. The default Level 0 displays the full user agent field without modification and produces the greatest amount of detail. User agent names that can't be mangled will be left unmodified.
#MangleAgents    0 
The SearchEngine keywords allow specification of search engines and their query strings on the URL. These are used to locate and report what search strings are used to find your site. The first word is a substring to match in the referrer field that identifies the search engine, and the second is the URL variable used by that search engine to define it's search terms.
SearchEngine        p=
SearchEngine    q=
SearchEngine       q=
SearchEngine       q=
SearchEngine        query=
SearchEngine       MT=
SearchEngine          MT=
SearchEngine     qt=
SearchEngine        webcrawler       searchText=
SearchEngine        excite           search=
SearchEngine     search=
SearchEngine        query=
SearchEngine    query=
SearchEngine  qr=
For a full list see