The process of maximizing the number of visitors to a particular website by ensuring that the site appears high on the list of results returned by the search engine

SEO is a free method of getting traffic from the natural sources to increase the page rank.

SEO is a technique it is stand by Search Engine Optimization. This technique is used for getting ranking in search engines. Now a days website owner use this technique for getting business for their website.
There are two type of technique are used.
First is called On page
Second is Called Off Page

Thank You,

SEO is a free method of getting traffic from the natural sources to increase the page rank.

Search engine is a technique to increased website rank in search engines like google,yahoo,bing

Search engine optimization is a digital marketing technique that enhance visibility of the website.

Search engine optimization is the way by which you can get online business through google organic search engines ranking.

Re: What is Search engine optimization
 

SEO - that phrase said the most important purpose of this job. It is how to boost traffic of your website, how to improve reliability of your web, how to make your web to appears on first page of Google search results,... There are a lot of indexes to show effectiveness of SEO, such as: CTR, PR, PA,... You can use check SEO tools to analyze them. One of the best tools is Google Analytics. Besides SEO also has a lot of other issues, for example: SEO offpage, SEO onpage, ethical SEO,...

Search engine optimization (SEO) is a technique to promote your website, product and services.

SEO is short for Search Engine Optimization, and there is nothing really mystical about it. You might have heard a lot about SEO and how it works, but basically what it is is a measurable, repeatable process that is used to send signals to search engines that your pages are worth showing in Google's index.

SEO is search engine optimization. SEO is used to increase the popularity of your site in a search engine. It has 2 techniques are on page and off page. On page refers to the structure of the website and off page refers to increasing the ranking of the website.