Bandwidth
Amount of traffic transmitted from the site.

Cached Request
A request that was cached on a client. If a browser has a cached copy of the requested file, it sends special request to a server so it sends the file only if it hasn't been modified. Otherwise the browser uses the cached copy of the file, and the request is logged on the server as the cached one.

Entry Page
First page visited by a user on the site.

Exit Page
Last page visited by a user on the site.

Failed Request
A request which caused an error.

Hit
A request for any file (page, image, etc).

Host
A computer connected to Internet. User hosts are shown in the reports as IP addresses or domain names.

Incomplete Request
A request in response to which the server sent only a part of a file. Many download managers download files using several threads each of which downloads a part of the file, so it is logged as several incomplete requests. Incomplete requests may also occur if the files (pages, images) are too large and/or users have problems with getting them from the site.

Page View
A request for a page file.

Spider (Robot)
A program which automatically gets information from sites. Spiders gather information for search engines, extract emails, check links, etc.

Total Unique IPs
A number of different user IP addresses or domain names.

Visitor
The program determines number of visitors by the IP addresses. If a request from an IP address came after some time (timeout) since the last request from this IP, it is considered to belong to a different visitor. The timeout is set to 30 minutes by default.