Cross-linking: The interlinking of several websites owned by one party in order to artificially boost their search engine rankings. Major search engines deprecate the value of links from the same IP or IP range. Therefore it is only valuable if the sites have relevant content (Do it for the user, and not for Google).
CSV
CSV aka comma-separated value file format that uses commas (,) to separate data fields. Commonly used by affiliate programs for data feeds, and by shopping engines (like Froogle) to update merchant and product information.
Custom Error Page
Custom Error Page – Default pages display when a website encounters errors, such as a 404 (web page not found) error. A custom error page preserves the look and feel of the site and provides helpful information to the site visitor.
Dedicated Server
Dedicated Server – a server that hosts only one website. These are recommended for high traffic (example: Google.com) or high bandwidth sites (those that rely on multimedia presentations).
Deepcrawled
Deepcrawled: Referred to when a search engine spider indexes web pages that lie several layers deep within the structure of a website. Some websites have difficulty getting search engines to crawl deeply into a site. Using sitemaps, deep backlinks, having a good internal linking structure, and regular updates improve chances of deepcrawling by major search […]
Deep Linking
Deep Linking- Linking to a page of content within a website that bypasses the home page, or the submitting of specific URLs to search engines that lie several layers within the site infrastructure. This improves visibility of pages to search engines that may otherwise require several clicks to reach from the home page.
De-listing
De-listing – Removal of a link for violation of rules, inaction, or poor performance. Search engines de-list websites that violate their terms. Ad servers like Google Adwords de-list advertisements which do not achieve set clickthrough rates.
Description Meta Tag
Description Meta Tag: A short paragraph that describes the content of a web page. Search engines may use this within their search result pages (SERPs), or may create their own by pulling content. Contents of this tag do not affect your search rankings (except for a small weight given on Yahoo), so use important keyword […]
DHTML
DHTML – An extension of HTML that uses CSS and Javascript to enable small animations and dynamic menus. Especially useful for SEOs who want searchable menus and do not wish to place all their eggs in one basket by using only Javascript.
Directory
Directory – A list of websites categorized and edited by humans instead of crawlers. Gives users relevant content, but does not allow for search queries. Yahoo and dmoz.org are examples.
