Should a newsletter's SEO content live on a subdomain or the root domain?

This comes up every time someone sets up automated articles for a local newsletter. My answer doesn't change: root domain, under a clean slug path.

Three lessons from my own sites

1. Your newsletter platform caps you. One newsletter I work with gets around 8,000 site visitors a month on Beehiiv, and Beehiiv's built-in SEO and GEO limits are the ceiling. A properly built standalone site would do much better.
2. Automated content dies quietly. I found automated SEO article pipelines on three of my sites had been dead for about a month. Daily articles configured, nothing publishing, nobody noticed. Now someone checks every three to five days.
3. Go wide on the domain, not the domain count. One root domain per state with city pages under it beats a pile of city domains. I bought the city domains first. Don't.

What about AI search?

Same rules, higher stakes. ChatGPT and Google's AI answers pull from pages that are clear, structured, and easy to verify. I still think a well-built "best X for Y" page shows up in ChatGPT answers even as Google gets stricter about listicles. One domain, clear pages, the same facts everywhere: that's how you get cited instead of skipped.