These three are separate layers of a complete SEO strategy. On-page SEO covers everything on the page itself — content, titles, meta data, headings, internal links, and schema. Off-page SEO covers signals that come from outside your website — backlinks from other sites, brand mentions, and domain authority signals. Technical SEO deals with how your website is built and crawled — site speed, mobile-friendliness, indexation, XML sitemaps, and robots.txt. All three work together, but on-page SEO is the foundation. If your pages are not optimised for the right keywords and structured clearly for Google, no amount of backlinks or technical fixes will consistently move your rankings.