Internal linking is the secret sauce of topic clusters.
Why linking matters for AI:
AI follows links to understand relationships. Your internal links are a map of your knowledge architecture.
The linking structure that works:
Pillar Page
├── Links to ALL cluster pages
├── Organized by section/category
└── Descriptive anchor text
Cluster Pages
├── Link back to pillar
├── Link to 2-3 related clusters
└── Contextual, natural placement
Anchor text matters:
Bad: “Click here to learn more”
Good: “Our guide to progressive overload training explains this technique”
AI reads anchor text to understand what the destination page is about.
Our testing:
Same cluster, different linking:
- Random anchor text: 21% AI citation rate
- Descriptive anchor text: 37% AI citation rate
The rule:
Every internal link should describe the destination clearly.