What Is On-Page SEO?

On-page SEO covers everything that lives directly on a page and falls fully under a site owner's control, title tags, header structure, body content, image alt text, and internal links to other pages on the same site.

It sits apart from off-page SEO, which covers external signals like backlinks, and technical SEO, which covers site infrastructure rather than the visible content itself.

Good on-page SEO means writing content that genuinely answers what someone searched for, structured clearly enough for both a human reader and a search crawler to follow easily.

Writing content built to that standard, automatically, is what LLM optimization software does for every page.