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Details:

Files
 represent the total number of hits (requests) that actually resulted
 in something being sent back to the user.  Not all hits will
 send data, such as 404-Not Found requests and requests for pages that
 are already in the browsers cache.

 Tip:
 By looking at the difference between hits and files, you can get a
 rough indication of repeat visitors, as the greater the difference
 between the two, the more people are requesting pages they already
 have cached (have viewed already).

 

 Sites
 is the number of unique IP addresses/hostnames that made requests
 to the server.  Care should be taken when using this metric for anything
 other than that.  Many users can appear to come from a single site, and
 they can also appear to come from many IP addresses so it should be used
 simply as a rough gauge as to the number of visitors to your server.

 

 Visits
 occur when some remote site makes a request for a page
 on your server for the first time.  As long as the same site keeps making
 requests within a given timeout period, they will all be considered part
 of the same Visit.  If the site makes a request to your server, and
 the length of time since the last request is greater than the specified
 timeout period (default is 30 minutes), a new Visit is
 started and counted, and the sequence repeats.  Since only pages
 will trigger a visit, remotes sites that link to graphic and other non-
 page URLs will not be counted in the visit totals, reducing the number
 of false visits.

 

 Pages
 are those URLs that would be considered the actual page being
 requested, and not all of the individual items that make it up (such as
 graphics and audio clips).  Some people call this metric page views
 or page impressions,  and defaults to any URL that has an extension
 of .htm, .html or .cgi.

 
 
 A KByte
 (KB) is 1024 bytes (1 Kilobyte).  Used to show the amount of data that
 was transfered between the server and the remote machine, based on the
 data found in the server log.



 
Common Definitions


 A Site is a remote machine that makes requests to your server,
 and is based on the remote machines IP Address/Hostname.

 

 URL - Uniform Resource Locator.  All requests made to a web server
 need to request something.  A URL is that something, and
 represents an object somewhere on your server, that is accessable to the
 remote user, or results in an error (ie: 404 - Not found).  URLs can be
 of any type (HTML, Audio, Graphics, etc...).

 

 Referrers are those URLs that lead a user to your site or caused
 the browser to request something from your server.  The vast majority
 of requests are made from your own URLs, since most HTML pages contain
 links to other objects such as graphics files.  If one of your HTML
 pages contains links to 10 graphic images, then each request for the
 HTML page will produce 10 more hits with the referrer specified as the
 URL of your own HTML page.

 

 Search Strings are obtained from examining the referrer string
 and looking for known patterns from various search engines.  The search
 engines and the patterns to look for can be specified by the user within
 a configuration file.  The default will catch most of the major ones.

 Note:
 Only available if that information is contained in the server logs.

 

 User Agents are a fancy name for browsers.  Netscape,
 Opera, Konqueror, etc.. are all User Agents, and each reports
 itself in a unique way to your server.  Keep in mind however, that
 many browsers allow the user to change it's reported name, so
 you might see some obvious fake names in the listing.

 Note:
 Only available if that information is contained in the server logs.

 

 Entry/Exit pages are those pages that were the first requested
 in a visit (Entry), and the last requested (Exit).
 These pages are calculated using the Visits logic above.  When
 a visit is first triggered, the requested page is counted as an Entry
 page, and whatever the last requested URL was, is counted as an Exit
 page.

 

 Countries are determined based on the top level domain of
 the requesting site.  This is somewhat questionable however, as there
 is no longer strong enforcement of domains as there was in the past.
 A .COM domain may reside in the US, or somewhere else.  An .IL domain
 may actually be in Isreal, however it may also be located in the US
 or elsewhere.  The most common domains seen are .COM (US Commercial),
 .NET (Network), .ORG (Non-profit Organization) and .EDU (Educational).
 A large percentage may also be shown as Unresolved/Unknown, as
 a fairly large percentage of dialup and other customer access points
 do not resolve to a name and are left as an IP address.

 

 Response Codes are defined as part of the HTTP/1.1 protocol
 (RFC 2068;
 See Chapter 10).  These codes are generated by the web server and indicate
 the completion status of each request made to it.