SEO is the process of boosting the website in the various activities like On-page and Off-page.SEO is the First step in Digital Marketing or Online Marketing process.
85% of online starts at a search engine. 85% of those clicks from the organic rankings
The First 10 Results Received 90% of all CTR ( click-through traffic ),
The Next 10 Results (Normally Listed on the Second Page of Results) Received 5%,
The Third Page - 3%, and
The Fifth Page - 1%. All other Pages of Results Received Less than 1%.