Technical SEO is to optimizing a website’s technical elements to improve visibility and performance in search engine rankings. It focuses on factors like site speed, site architecture, URL structure, crawl ability, indexability, and mobile responsiveness. Technical SEO ensures that search engines can effectively crawl, index, and understand your website's content. With the best practices of technical SEO, you can enhance your website's visibility in search engine results, increase organic traffic, and improve user experience.