Definitions: D
- What is a Database?
- A database is a collection of data that is organized so that its contents can be easily accessed, managed, and updated.
- What is Decryption?
- Decryption is the process of interpreting data which is sent in a hard to read form (encrypted).
- What is a Dedicated Server?
- A dedicated server is a computer that include a Web server, related software, and connection to the Internet, housed in a Web hosting company's premises, that can be rented exclusively for your own use.
- What is Deep Linking?
- Deep linking is linking to a page other than the site's home page.
- What is Delisting?
- Delisting is the removal of pages from a search engine's index.
- What are Demographics?
- Demographics are the characteristics of a population or audience, such as gender, age group, occupation, income, race, preferences, etc.
- What is a Description Tag?
- A description tag is a HTML meta tag used to provide a description of a Web page for search engine listings.
- What is DHTML?
- DHTML (dynamic HTML) is an advanced version of HTML that contains more features, such as animation.
- What is a Dial-up Connection?
- A dial-up connection is a method of connecting to an Internet service provider using a telephone connection in a system of many lines shared by many users. A dial-up connection can be started manually or automatically by a computer's modem or other device.
- What is a Digital Certificate/Signature?
- A digital certificate or signature is an electronic 'credit card' that establishes your credentials when doing business or other transactions on the Web.
- What is a Discussion Forum?
- A discussion forum is a Web site where people meet for open discussion on various topics.
- What is Dmoz?
- Dmoz (also known as the Open Directory Project) is the largest human-edited Web directory with over 4.7 million web sites, reviewed by a global community of over 89,000 volunteer editors. The Open Directory was founded in the spirit of the Open Source movement, and is the only major directory that is 100% free. There is not, nor will there ever be, a cost to submit a site to the directory, and/or to use the directory's data. The Open Directory data is made available for free to anyone who agrees to comply with its free use license.
- What is DNS?
- DNS (Domain Name Server) is a machine which translates Internet domain names, such as www.google.com, to an IP (Internet Protocol) address, such as 216.239.51.100 (a Google IP address).
- What is Dogpile?
- Dogpile is a metasearch engine that searches four search engines at a time and lists the results from each engine on each page.
- What is a Domain?
- A domain is the name with which domain name server records are associated that describe subdomains or hosts.
- What is a Domain Name?
- A domain name is a meaningful and easy-to-remember name for an Internet IP (Internet Protocol) address, such as 216.239.51.100 (a Google IP address).
- What is a Doorway Page?
- A doorway page (also known as a bridge, entry, gateway, and information page) is an informational page created for the sole purpose of ranking high in search engines for a particular keyword phrase, or specific search engine.
- What is Double Opt-in/Optin?
- Double opt-in or optin is email that a recipient has previously requested by subscribing at a Web site or via email, and then confirming the request.
- What is Download?
- Download is copying a file from a remote computer down to your local computer.
- What is DSL?
- DSL (Digital Subscriber Line) is a technology that transmits high-bandwidth information over ordinary copper telephone lines. Individual connections will typically provide 512 Kbps to 1.544 Mbps downstream and 128 Kbps upstream transfer rates. A DSL line can carry both data and voice signals and the data part of the line is continuously connected.
- What is Dynamic Ad Rotation?
- Dynamic ad rotation is the delivery of ads on a rotating, random basis so that visitors are exposed to different ads in different pages of a site.
- What are Dynamically Generated Pages?
- Dynamically generated pages are the database driven Web pages created 'on the fly' (in real-time) depending on the user's interest or request.
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