A- On page optimization- It includes optimizing different segments of a website. This directly affects the search engine rankings. Hence, it is also known as on-site SEO. It has to maintain the relevancy of websites to improve its ranking. They include keyword optimization, title tag optimization, meta tag, internal link optimization, image optimization, etc.
Off page optimization- Off page SEO depends on another pages to increase your site’s ranking. It involves third party help to increase online visibility. It helps in obtaining fresh links. Link building increases the traffic to your website and help in ranking high. The process includes social bookmarking, social media marketing, link-building, etc.