- Dead link
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A link to a web page that does not exist on a web server. -
- Deep linking
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Linking to content that is two or more directories deep within a web site. Can also be linking directly to individual web pages within a site, rather than to the home page. -
- Destination page
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The web page a visitor is taken to after clicking a search engine listing or advertisement. Also known as a landing page . -
- Directory
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Web site that focuses on listing web pages or sites by specific categories, using human editors to manually place web sites or web pages into the categories. Commonly called a "human-based" search engine. -
- Directory enhancement
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The process of selecting the most appropriate category (or categories) in a directory and writing a keyword-rich description that accurately describes the content of a web site or web page. -
- DNS
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Abbreviation for Domain Name System. The DNS translates URL text addresses (such as companyname.com ) into a numeric Internet address (such as 201.214.12.6). -
- DNS lookup
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The process of converting a unique IP address (of a site visitor) to its domain name. Often used in site statistics software to analyze server log files. -
- Domain name
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Generally, a text address that corresponds to one or more numeric IP addresses. An exclusive name that identifies a web site, such as companyname.com . -
- Doorway domain
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A web site that consists mostly or solely of doorway pages. A doorway domain's only purpose is to rank well on the search engines and to ultimately redirect traffic to a different site. -
- Doorway pages
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Web pages created specifically for obtaining top search engine positions and not to benefit end users. Computer-generated doorway pages are usually created to rank high on specific search engines and are often cloaked. -
- Download
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The process of retrieving information from a main source to a peripheral device. Browsers download web pages from a server. -
- Dynamic HTML
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An HTML extension that enables web pages to react to the end users' input, such as displaying a web page based on the type of browser or computer end users are using to view the page. HTML and CSS rely on JavaScript to make web pages interactive. -
- Dynamic IP
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An IP address that changes every time a user connects to the Internet. -
- Dynamic URLs
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The URL of a dynamic web page. Dynamic URLs typically contain characters such as ?, =, %, +, cgi, or cgi-bin. -
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