What is SEO?

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SEO : Search Engine Optimization.

SEO is all about the optimizing a website for search engines.

SEO is a subset of search engine marketing.

SEO most of the techniques that are used to promote sites in search engines.

For SEO it is essential that you understand how search engines work.

SEO is a technique for:

  • developing and designing a website to rank well in search engine results.
  • to improve the quality & volume of traffic of a website from search engine.
  • what visitors search for & understanding about the how algoriths work.

SEO Activities to deliver search results.

Crawling – Crawling is the Process of fetching all the web pages linked to a website.
This task is performed by crawler or a spider .

Indexing – Indexing is the Process of creating index for all the web pages fetched
and keeping them into a database from where it can later be retrieved.the process of indexing is identifying the words and expressions that describe the page and assigning the page to particular keywords.

Processing – When search request comes, the search engine processes the request ,and
it compares the search string in the request with the indexed pages in the database.

Calculating Relevancy – It is like that more than one page contains the search string,
so the SE :(‘Search engine’) starts calculating the relevancy of each of the pages in its index to the search string.

Retrieving Results – Retrieving Results is the last step in SE :(‘Search engine’) activities for retrieving the best matched results.it is basically nothing more than displaying them in the browser.

Search engines such as Yahoo and Google, often update their relevancy algorithm many times per month.
When you see changes in your rankings it is due to an algorithmic shift .

Mostly the basic principle of operation In all search engines is same, the Little differences is between their relevancy algorithms lead to major changes in results relevancy.


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