Mainly Two Techniques are used in the SEO.
1 On page SEO
2. Off page SEO
On page Method are:
Meta Title
Meta Description
Meta Keywords
Meta Url
Site Map
Robert.txt
Off page Optimization are:
Forum Submission
Social Bookmarking submission
Directory submission
Yahoo answering
Classified submission
Local site submission
Ping submission
Rss submission
Basically there are two types of seo:
On page seo : in website work like title, keyword, description, content and much more...
Off page seo : build backlinks form different sites...
SEO can easily be divided in to two parts, On-page and Off-page SEO. On-page SEO includes the activities you do on your website in order to improve search engine rankings. Off-page SEO is an activaty of building a digital reputation by creating backlinks and reputation validation across the web.