SEO and SEM Glossary: Terms and Abbreviations for Alphabet "D"

Dayparting

A paid placement bidding technique that allows you to set your bids based on same of day, so that your bids are higher at the times of highest conversion.

Description Tag

The HTML element that contains a synopsis of the page. Search engines sometimes match search queries to page descriptions, so improving the description seems like a good way to begin to optimize your page.

Destination Page

According to the bow-tie theory of Web pages, a page linked from the core but does not itself link back into the core. Destination pages are typically high quality pages, but they might be part of corporate Web sites that tend to link internally more than externally.

Developer

A specialist who develops software, web developers develops programs or html to display web pages in your visitor’s web browser.

Directory

A list of hundreds or thousands of subjects (such as fly fishing or needlepoint) along with links to web sites about those subjects. Yahoo! Directory is the most famous example, but most directories are lightly used in comparison to text search technology.

Directory Listing

One of many hypertext links about a particular subject. Site owners submit a page to request that it be listed in the directory, and say that they have a “directory listing” when their submission is accepted. Yahoo! Directory and Open Directory are the most famous examples of Web Directories.

Disconnected page

According to the bow-tie theory of Web pages, a page not direct connected to the core. Disconnected pages might links to or from origination and destination pages, or the might be linked only to other disconnected pages.

Disintermediation

A web savvy term for “cutting out the middleman”. Disintermediation was much discussed during the Internet boom, but has not been as sweeping as the hype would lead you to believe.

Doorway pages

also known as a gateway page or entry page, a spam technique by which a page is designed solely to achieve high search engine rankings, with no value to visitors to your site. Unlike search landing pages, a doorway page is usually kept as hidden as possible from visitors who navigate through the site.

Dynamic page

Web page whose HTML is generated by a software program at the moment the page is displayed. Dynamic pages are necessary when a page contains content that must change based on the visitor, such as an order status screen. A software program must retrieve the order status for the visitor from a database and build the HTML that shows the correct information on the screen. Dynamic pages often pose difficulties for search marketing that static pages do not.