SEO is the process of optimizing a website for Google search with the goal of earning higher web traffic levels and improving the visibility of the site. The practice of SEO includes on-page optimization (such as title tags and meta descriptions) as well as off-page optimization (such as link building and content creation).
When done correctly, SEO can help a website rank higher in search engine results pages (SERPs), which in turn can lead to increased web traffic levels and improved visibility for the site. However, it is important to note that SEO is not a guarantee of success, and there is no guarantee that a website will rank higher simply by implementing SEO techniques.