SEO refers to search engine optimization. When u contains any question in google then enter search button you get a list of web results .Users normally visit top list of website. It's because of powerful web marketing that's called search engine optimization.
SEO helps your site rank is higher than millions or billions of other sites in response to a query. It is an internet marketing strategy.
Directory and search engine submission.
Appropriate web site linking from other sites.
Meta tag and html design.
Well written web site content.
Well-structured web page design.
Meta tag optimization.
Try for top ten rankings.
Search engine submission.
Keywords based optimization strategy.
Make your landing pages search engine friendly.
Make your secondary pages search engine friendly.
Try for indented listing.