Search engine optimization (SEO) is a process of optimizing a website to increase visibility in a search engine’s unpaid results. SEO involves improving the website’s content, structure, and coding to ensure that search engines can easily find and index the website. This helps the website to rank higher in search engine results, thereby increasing its visibility to potential customers. SEO also includes optimizing the website for other search engine factors, such as backlinks, keyword density, and user engagement. SEO is a crucial part of any online marketing campaign, and it can be used to improve the visibility of a business website in organic search results.