The error message that is commonly displayed when a Web browser cannot locate a Web page or script. The link to a Web page (URL) is static like a telephone number in a telephone book. A Website can use software to search each link that it references for validity, but there is no program that can automatically find the new address for the missing link

An Active Server Pages is a web server extension by Microsoft that enable database connectivity and creation of dynamic content. They allow pages in HyperText Markup Language (HTML) with scripts to be processed on a server before being sent to a user. Where as standard HTML pages are sent to the user without any server-side processing.

A name that points to another name. Aliases are used to make the original name easier to remember or to protect the site's identity. They work much in the same way as with a person’s name; (AKA) also known as.

Anonymous FTP allows a user to retrieve documents, files, programs, and other archived data from anywhere on the Internet without having to establish a user id and password If you have this enabled on your site it means that anyone can upload or download to and from your site.

Apache is an open-source (source code is freely available and can be shared) HTTP Web server software. It is currently the most popular web server on the Net. It is usually run on UNIX operating system versions like Linux or BSD, but it can also be run on Windows. Apache's major competitor is Microsoft's IIS.

An applet is a small program that can be sent along with a web page to a user. Java applets can perform interactive animations, immediate calculations, or other simple tasks without having to send a user request back to the server.

Audio Streaming is the process of providing audio clips and content on a web site.

The total amount of data that can be sent through a network connection in a certain time, usually measured in bits per second (bps), megabits per second (Mbps), or gigabits per second (Gbps). The bandwidth provides for a faster loading time for your web site.

Any software program that lets you “surf” the Internet and view web pages. Popular browsers in use today include Netscape Navigator, Microsoft Internet Explorer, Opera and Mozilla Firefox.

The process in which the web site tries to determine what kind of web browser the user is using. This is done to suit the website to the particular capabilities of the browser.

A set of rules that describe how a Web Server communicates with another piece of software on the same machine, and how the other piece of software (the "CGI program") talks to the web server. When the user fills out a form on a Web page and sends it to the server, it usually needs to be processed by an application program. The Web server typically passes the form information to a small application program that processes the data. This method or convention for passing data back and forth between the server and the application is called the common gateway interface (CGI).

The most common name of a directory on a web server in which CGI Programs are stored. The “bin” part of the name is a short-hand version of the word “binary”. Most programs found in cgi-bin directories are text files.

This term is used to describe the ratio of clicks to impressions on an advertisement, usually a banner ad. If a banner has been shown 100 times and 3 people click on it, it will have a 3% click through ratio.

A browser-based web site management tool. Typically allows users to manage basic tasks such as adding email users, protecting certain directories, adding databases, setting up ftp accounts etc.

A small text file that certain web sites attach to a user's hard drive while the user is browsing the Web site. A Cookie can contain information such as user ID, user preferences, archive shopping cart information, etc. Although cookies can contain Personally Identifiable Information contrary to common belief they are not viruses.