On-page SEO (also known as on-site SEO) is the practice of optimizing individual web pages in order to rank higher and earn more relevant traffic in search engines. This includes optimizing HTML elements like title tags, meta descriptions, the content, internal links, and more to make it easy for search engines to understand your website.

Offpage optimization refers to all the measures that can be taken outside of the actual website in order to improve its position in search rankings. Off page optimisation is a long term and time consuming process. It includes acquiring backlinks to your webpage from the authority sites, social media and etc. This will work in the background to improve the search engine rankings.