Page View - The opportunity for a page to appear in a browser window as a direct result of a visitor's interaction with a website. The term "page" is used to represent the visitor's view of a website through the browser window. A page request does not guarantee that a visitor actually viewed the requested page. It only measures the opportunity for that page to have been delivered to the visitor. A page request will be valid even if the resource or information requested does not load to completion or otherwise become fully available to the requesting visitor. Pages may contain text, images, media objects or other online elements. However, only one page is counted per request. A request that is followed by an interstitial page (a page that appears in a separate browser window while a web page is loading), will only count as one page request. Cached pages (pages held in processor memory) are not counted in page-hit calculations, so as to have a system of measurement that replicates web log file data.

Path - A Path is defined as a series of clicks resulting in distinct pageviews. A Path cannot contain non-pages, such as image files. Each step in a path will have a name, such as "index.html".

Platform - A platform is a specific computer hardware and software operating system combination that represents a specific user's configuration and method of accessing the Internet. Common platforms include Windows NT/x86 (Microsoft Windows NT on a standard Intel-type PC), Mac PPC (Macintosh with Power PC processor), Red Hat Linux 6.1 x86 (Linux on a standard Intel-type PC).

Point-in-time services - Point-in-time services occur when customers are directed to your website to perform a well-defined task at a specific, often event-driven, time. Examples include payment for utility bills, product registrations, technical support, and customer satisfaction surveys.

Port - A port is a distinct location on the web server at which point two-way communications can take place. Every type of network communication uses a specific port, including http, ftp, email, etc. Ports allow multiple protocols of communication to exist simultaneously on the same computer. The standard port for web traffic is 80, while the secure (encrypted) port is usually 443.

Protocol - An established method of exchanging data over the Internet.

Query Token - A Query Token is a special character in a GET-type URL that differentiates the main URL from the specific query. For example, in this URL: http://Capitalsal.com/clientlogin.php?q=1981, the query token is the question mark.

Referral Errors - A Referral Error occurs whenever someone clicks on a link that points to your site but that contains a reference to a non-existent page or file. This action usually results in a "404 Not Found"-type error.

Referrals - A referral occurs when any hyperlink is clicked on that takes a web surfer to any page or file in another website; it could be text, an image, or any other type of link. When a web surfer arrives at your site from another site, the server records the referral information in the hit log for every file requested by that surfer. If a search engine was used to obtain the link, the search engine name and any keywords used are recorded as well.

Referrer - The URL of an HTML page that refers visitors to a site.

Returning Sessions - Returning Sessions represents the number of times unique visitors returned to your website during a specified time period.

Returning Visitors - The number of visitors who have been to your site prior to this report period and have come back. Returning visitors are determined by the cookie. Returning visitors are counted as unique returning visitors, that is, they are counted only once for the report period.

Reverse DNS - Name resolution software that looks up an IP address to obtain a domain name. It performs the opposite function of the DNS server, which turns names into IP addresses.

Robot - A robot is a program that runs automatically without human intervention. Typically, a robot is endowed with basic logic so that it can react to different situations it may encounter. One common type of robot is a content-indexing spider, or webcrawler.