De-Listing

Temporarily or permanently becoming de-indexed from a directory or search engine. De-indexing may be due to any of the following: Pages on new websites (or sites with limited link authority relative...

DNS

Domain Name Server or Domain Name System. A naming scheme mechanism used to help resolve a domain name / host name to a specific TCP/IP Address.

DMOZ

The Open Directory Project is the largest human edited directory of websites. DMOZ is owned by AOL, and is primarily ran by volunteer editors. See also: DMOZ.org Submitting a Site to the...

Dayparting

Dayparting is a feature in AdWords that allows publishers to run their campaigns -- during peak times -- when their audience may be the most receptive to take action...

Description

Directories and search engines provide a short description near each listing which aims to add context to the title. High quality directories typically prefer the description describes what the site...

Dead Link

A link which is no longer functional. Most large high quality websites have at least a few dead links in them, but the ratio of good links to dead links...

Dynamic Programming Languages

View image | gettyimages.com Dynamic programming language is a term used in computer science to describe a class of high-level programming languages which, at runtime, execute many common programming behaviors...

Dedicated Server

Server which is limited to serving one website or a small collection of websites owned by a single person.   Dedicated servers tend to be more reliable than shared (or virtual)...

Directory

A categorized catalog of websites, typically manually organized by topical editorial experts. Some directories cater to specific niche topics, while others are more comprehensive in nature. Major search engines likely...

Deep Link

A link which points to an internal page within a website. When links grow naturally typically most high quality websites have many links pointing at interior pages. When you...

Doorway Pages

Pages designed to rank for highly targeted search queries, typically designed to redirect searchers to a page with other advertisements. Some webmasters cloak thousands of doorway pages on trusted domains,...

Demographics

Statistical data or characteristics which define segments of a population. Some internet marketing platforms, such as AdCenter and AdWords, allow you to target ads at websites or searchers who fit...

Digg

Social news site where users vote on which stories get the most exposure and become the most popular. See also: Digg.com

Deep Link Ratio

The ratio of links pointing to internal pages to overall links pointing at a website. A high deep link ratio is typically a sign of a legitimate natural link profile.

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