Google's leaked documents confirmed it. They use a secret metric called siteAuthority to determine who to trust. The sites dominating search in 2025 and beyond aren't chasing keywords. They're owning entire topics. 7-step framework for building topical authority: 1. Define your core topic domain Pick a niche you can actually dominate. "Email marketing" is too broad. "Email marketing for SaaS companies" works. Most people fail here by going too wide. 2. Uncover your entire topic…