I deployed three independent directory sites to Vercel last month and tried to add Google AdSense to all three. Every application got rejected. The rejection email cited "site not yet ready" — vague enough that I assumed it was a content quality issue. After three rounds of revising the sites and re-applying, I figured out it wasn't about content at all. It was about the URL. AdSense will not approve a *.vercel.app site. Not because of programmatic content, not because of site age, not because of low traffic. Because the domain is not yours. How AdSense decides what counts as your site Google's AdSense terms require the applicant to "own or have control of" the site they want to monetize. When you deploy to Vercel, your URL is your-project.vercel.app — a subdomain of vercel.app , which is owned and controlled by Vercel. From the AdSense automated review perspective, you are asking permission to display ads on a domain that legally belongs to someone else.…