 What is SEO?
The term SEO stands for Search Engine Optimization. It is the science and art which involves optimizing a website so that it gets crawled and indexed by search engines in the most effective manner possible.
Why SEO?
Search Engine Rankings mean Traffic which ultimately means business. Search Engines are the best source of free and reliable Traffic – getting visitors who are actually looking for what you are selling.
How Search Engines work?
Search engines run a series of sequential tasks to serve the relevant web-results to their searchers.
 Search engines send automated programs, called "bots" or “spiders” to crawl the servers on the WorldWideWeb to find documents and bring back to its index or database.
After building a Database it filters documents according to the search engine's rules (so as to remove spam, and un-important web-pages) and stores those which meet its quality criteria.
When a request for information comes into the search engine (hundreds of millions each day), it evaluates the sites in its index, assessing which are the most relevant to the requested information, based on area of expertise as evidenced by keywords in content of the web-page, theme of the website and link references from other websites.
How Does SEO Help?
Broadly speaking the role of SEO is to bridge the Gap between the Search Engines Working and the understanding of the Webmasters. Usually webmasters like to make flashy websites, using Java-Script etc, so as to make it attractive for their visitors, until they notice their website becoming invisible to the Search Engines or they have/get an urge to get that free traffic.
Over here the function of SEO starts, making the website compliant to Search Engine Standards, optimizing it and achieving its rankings.
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