Search engine optimization What is it and How does it work

Search engine optimization What is it and How does it work

This is an explanation of what search engine optimization is and how it works

Search engine optimization (SEO) is the process of improving the volume or quality of traffic to a web site from search engines via “natural” or un-paid (“organic” or “algorithmic”) search results as opposed to search engine marketing (SEM) which deals with paid inclusion. Typically, the earlier (or higher) a site appears in the search results list, the more visitors it will receive from the search engine. As an Internet marketing strategy, SEO considers how search engines work and what people search for. Optimizing a website primarily involves editing its content and HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines.
The term “search engine” is often used generically to describe both crawler-based search engines and human-powered directories. These two types of search engines gather their listings in radically different ways.
Crawler-Based Search Engines
Crawler-based search engines, such as Google, create their listings automatically. They “crawl” or “spider” the web, then people search through what they have found. If you change your web pages, crawler-based search engines eventually find these changes, and that can affect how you are listed. Page titles, body copy and other elements all play a role.
Human-Powered Directories
A human-powered directory, such as the Open Directory, depends on humans for its listings. You submit a short description to the directory for your entire site, or editors write one for sites they review. A search looks for matches only in the descriptions submitted. Changing your web pages has no effect on your listing. Things that are useful for improving a listing with a search engine have nothing to do with improving a listing in a directory. The only exception is that a good site, with good content<img src="http://www.articlesfactory.com/pic/x.gif" alt="Health Fitness Articles" border="0", might be more likely to get reviewed for free than a poor site.
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Search Engine Optimization, Search Engine, Engine Optimization, Search Engines

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