Glossary

We'll find here some useful definitions to be able to understand your stats reports. If you need more help, contact me !
Access - Page view

Count HTML pages only
This is far more accurate than the hits as it's so easy to add 'pixel' images into your HTML file to increase hits (many HTML editors use 'pixel' images to build complex layout)
Requests - Hits

Count all file requests
Just to give an idea about your stats. The ration Hits/Access give you the number of files loaded by the user when viewing one page.
Visitor

Unique IP address
Most stats package use 'visitors' to count the number of different IP addresses. I don't want to use this because this number is not very accurate. Is a spider a visitor ? Different visitors can use the same IP if they use a proxy or share the same internet connexion ... and on the other side, the same user can visit your site many times if he use dynamic IP. So many visitors --> one IP and same visitor --> different IP !
Session is more accurate and can make the difference but it's a little bit more hard to compute !
Hosts - Site

IP address
This number can give you a rough estimation of your visitors. But don't forget this is not very accurate due to proxy or ISP works. Local hosts are machines inside your domain name, external hosts come from outside. It allows you to get stats also within your domain.
Traffic

The bandwith used
It could be a very useful data to count the number of Mb people are downloading from your site. Detect the files which take most of your bandwith.
Proxy

Check requested from a proxy
When people use a proxy, most requests come from this proxy which check if the file requested is uptodate. If yes, the proxy send the file to the user and no request is made from your website (except about asking if the page is still uptodate). If not, another request is made to get the file requested and this request is counted as a hits. So this number is the proxy requests about data check.
Not found

Request for a missing file
This is the number of requests for a file which have been deleted or misspelled from your website. try to get this number as low as possible. Check the error stats and the bad links section to rectify.
Forbidden

Request for a protected file
Some area of your site may be protected against unsollicited people. When your server answer 'you are not allowed to get this file', this number is increased.
Scripts

Requests about CGI
If you are using some dynamic pages on your site, you may use CGI. When URL is based on a POST method, script arguments could be splited and some stats can be computed.
Internal

Single level directory
Only statistics for a specific directory is printed. If you want to count also sub-directories, you should use the 'Tree' section.
Tree

Multi level directories
Statistics including all sub-directories are counted. if you have a root directory for each language (/uk/, /fr/...), you could easily see which language is used the most.
Session

Visitors number
There is no session on Internet but it can computed with some basic rules. People don't stay too long on the same page to read it (30 minutes is the limit) and robot don't scan your website during the whole day. Then session can be extracted from the data. This is not the number of hosts but it should be close (many people can get the same IP over time (ISP) or the same IP can be shared by many people (proxy))
Robot

Web spider
Some site like Altavista, Inktomi, Google use their own robot to scan the web to feed their database search engine. The first request from a robot is for a file called 'robot.txt' which give the rules (permission) to access your website. If no file is found, the robot assume it can scan everything. So when this file is requested, the session is assumed to be a robot one. People which use tools to download a whole website use also robot session.