What is more important: content or technical optimization?

You need both, but technical optimization enables content to work. The best content in the world won't rank if Google can't crawl it, your site loads slowly, or the mobile experience is broken.

Technical SEO creates the environment where content can succeed. That said, once technical foundations are solid, content becomes your growth engine—it's what attracts links, satisfies search intent, and builds authority. I've seen technically perfect sites with weak content stagnate, and content-rich sites with technical problems struggle. They work together. If forced to choose, fix technical first because it unlocks everything else.