SEO starts with a good Keyword research. Optimization and Marketing starts from here.
Good keyword research leads to website content optimization which can generate leads for your business.
If the user's attention isn't caught within the first few seconds, all your research and SEO are useless. Good content and fast loading speed are crucial for your business.
Attracting users who are already searching for what your business has to offer is the best way to benefit your business.
SEO is meant to generate leads and sales for your business. Your website should be built for users and not web crawlers.