Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a search engine’s unpaid results. This is often referred to as “organic” or “earned” results. Organic search results are listings on SERPs (search engine ranking pages) that appear because of their relevance to the search terms (doesn’t include any paid-for advertising).
SEO is earned by creating a website that offers high-quality, relevant information for both searchers and search engines, and by creating a website that provides users with the best experience possible. Building SEO doesn’t happen overnight, but the long-term investment is worth it.