Seo can be a technique where your site can be shown higher in a listing of SE results. It indicates designing a website to ensure that it ranks higher in search engines when someone searches for a specific phrase that is related to this site. A site will have more traffic if it appears earlier in the search engine rankings and and this is what search the engine do.
SEO targets different kinds of search including image search, local search, industry specific vertical search and video search which provides a web site web presence. As a strategy of online marketing SEO considers how search engines work and what people look for. Optimizing a site involves editing the written text and HTML to be able to improve the relevance to specific keywords and also for removing barriers to particular activities of SEO.
SEO also refers to “online search engine optimizers”, this is a term adopted by a marketplace of consultants who perform optimization projects for clients and by employees who organic search engine optimisation. They have SEO like a stand-alone service or as a part of broader advertising campaign. It is because effective SEO may sometimes require changes to HTML source code of the site, SEO tactics may be needed to become integrated into site development and design. You will find a class of optimszation such as black hat and spamdexing which make use of methods like link farms, keyword stuffing and article spinning that degrade the relevance of search results and user experience with the engine. These searches for those sites that use these technologies and removes them from the indices.
SEO came into use probably in 1997 when marketers found the need for having their sites in higher ranks and visible in SEO results. Starting with this year webmasters made efforts to rank well in SE, some even manipulated ranks in SE by stuffing pages with irrelevant keywords. Earlier ones had their algorithms adjusted in such a manner that in order to avoid webmasters from manipulating ranks.