SEO for copywriters has two connected applications, and knowing which one you are solving prevents the strategy from becoming vague.
Meaning 1: SEO for your own copywriting website
This use of SEO is about helping prospective clients find pages that accurately describe the services you offer. A B2B buyer may search by specialty, deliverable, industry, or problem rather than by a generic writer label.
The work includes researching buyer language, aligning page titles and headings with the real purpose of each page, connecting useful supporting content to service pages, and earning legitimate citations or links when other sites have a reason to reference the work.
Meaning 2: SEO-informed writing for clients
This is the editorial skill of creating client content that reflects search intent without turning the copy into a keyword exercise. The copywriter still owns clarity, persuasion, voice, evidence, and structure; search research adds context about what the audience is trying to find.
These two uses overlap, but they are not interchangeable. One helps the copywriter's own practice become discoverable; the other helps client pages answer search demand more effectively.