Search engine optimization(
SEO) is the process of improving the volume or quality of traffic to a web site from
search enginesvia "natural" ("organic" or "algorithmic")
searchresults. Typically, the earlier a site appears in the
searchresults list, the more visitors it will receive from the search engine.
SEOmay target different kinds of search, including image search, local search, and industry-specific vertical
As an Internet marketing strategy,
SEOconsiders how search engines work and what people search for. Optimizing a website primarily involves editing its content and HTML coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines.
The acronym "
SEO" can also refer to "
search engine optimizers," a term adopted by an industry of consultants who carry out optimization projects on behalf of clients, and by employees who perform
SEOservices in-house. Search engine optimizers may offer
SEOas a stand-alone service or as a part of a broader marketing campaign. Because effective
SEOmay require changes to the
source codeof a site,
SEOtactics may be incorporated into web site development and design. The term "
search enginefriendly" may be used to describe web site designs, menus, content management systems and shopping carts that are easy to optimize.
Another class of techniques, known as black hat
Spamdexing, use methods such as link farms and keyword stuffing that degrade both the relevance of search results and the user-experience of
Search engineslook for sites that employ these techniques in order to remove them from their indices.
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