SEO means search engine optimization. SEO helps in getting higher rank in SERP (search engine result pages). SEO is an online technique which help you to bring your website on top of search engine result pages for focused keyword.
keyword is a word or phrase which user type in serach engine to find out something this word or phrase is known as keyword.
SEO is of three types :
- White Hat SEO
- Black Hat SEO
- Grey Hat SEO