If you were starting SEO from scratch in 2025, where would you begin? Ahrefs lays out a practical, step-by-step learning roadmap that covers the fundamentals while accounting for the seismic shifts AI is causing in search. This video covers keyword research methodology that works in the age of semantic search, on-page optimization that still moves the needle, content strategy frameworks for building topical authority, and link building tactics that remain effective despite Google's evolving algorithms. The video is particularly valuable for its treatment of AI's impact on SEO --- how AI Overviews are changing click-through patterns, which query types are most affected by zero-click results, and how to adapt your content strategy for an environment where traditional blue links are no longer the default. Whether you're a marketer who needs SEO literacy to manage agencies effectively or someone planning to build organic traffic as a primary growth channel, this roadmap provides the structured learning path most people spend years piecing together on their own.