SEO copywriting is writing for the questions people type into a search box. The writer first works out what your future customers actually search for, then builds the page so that it settles that need completely: it answers the question, removes the doubts and points to the next step.
Ordinary marketing copy starts from the product: what we sell and what we are proud of. SEO copy starts from the query: what the person wants to know, and in what order. You can see the difference in the first paragraph. Marketing copy opens with “Company X offers.” Search-driven copy opens with a direct answer to the query.
The fundamentals have barely moved in twenty years: one intent per page, the query in the headline, a clear structure of subheadings, useful content. What has changed is how pages are judged. Search engines now understand synonyms and context, so “keyword density” stopped mattering, while completeness of the answer and trust in the author matter a lot more.
A word on semantic copywriting, sometimes called LSI copywriting. It means a text in which the related vocabulary of the topic turns up naturally next to the main query. On a page about sofas that is “frame,” “filling,” “sleeper mechanism” and “sleeping area dimensions.” We never paste such words in from a list. They appear on their own when the author knows the subject.