What is On-Page SEO? On-page optimization is the process of optimizing a website to achieve high search engine rankings for specific keywords. It usually deals with various aspects of on-page SEO such as content on the site, HTML coding, URLs, title, and descriptions. This kind of optimization technique focuses on the most important parts of a site such as the title, H-tags, Meta tags, and images. A site’s on-page optimization has two sides, the on-site SEO and off-site SEO.