What SEO actually asks of design

The standing assumption is that search wants text and design wants images, and somebody has to lose. That framing has been out of date for a while.

The overlap is larger than the conflict

Fast pages, clear heading structure, readable line lengths, descriptive links, images that load at the size they are displayed — every one of those is both a ranking input and a straightforwardly better reading experience. Most of what search asks for is what a careful designer would do anyway.

The genuine tension is narrower than people think, and it is mostly about volume of copy above the fold and how much of the page is a single unlabelled image.

Where designers actually lose rankings

• Headings chosen by size rather than by structure, so the outline reads h1, h3, h3, h2.
• Body copy set below 14px, which pushes readers away regardless of what the crawler thinks.
• Link text that says "learn more" six times on one page.
• Hero images shipped at 4000px because nobody checked.

None of those are aesthetic decisions. They are defaults nobody revisited.

Treat the outline as a design surface

Write the heading structure of a page before laying it out. If the outline reads sensibly on its own, the page usually works for both audiences. If it does not, that is a content problem wearing a design costume, and no amount of art direction will resolve it.