SEO stands for Search Engine Optimization and is the process of optimizing a website or web page to increase its visibility in the organic search results of a search engine. SEO involves making changes to the content, HTML and associated coding of a website to make it more attractive to a search engine and to make it easier for the search engine to understand what the website is about and how it should be indexed. SEO also involves optimizing the content of a website to make it more relevant to the search engine and to the user. This includes optimizing the titles, meta descriptions, keywords, image alt tags, and other elements of the page to make it more relevant to the search engine and to the user. Additionally, SEO involves building backlinks to the website from other websites, using techniques such as blog commenting, guest blogging, and directory submission.