Semantic cocoon

Cocoon · Thematic silo · Topic cluster

A semantic cocoon is the organization of a set of pages around a pillar page, linked by thematic internal linking. It covers more sub-queries than a single page on a broad subject. The term is a French SEO structuring concept, close to the Anglo-Saxon topic cluster.

Standalone definition · 46 words

Category: Technical SEO · Published on October 16, 2026 · Updated on October 17, 2026 · By Aslane Samai, SEO & GEO consultant

How do you structure a cocoon?

A pillar page covers the subject in depth, satellite pages detail each subtopic or intent, and internal links run from the pillar to the satellites, from the satellites back to the pillar, and between related satellites. Anchors describe the subject of the linked page.

Why does the cocoon serve GEO?

Query fan-out generates sub-queries on a single subject. A cocoon provides a page or passage for each angle, with linking that clarifies the relationships between topics. It is a structural answer to multi-query logic.

What mistakes should you avoid?

Satellites that cannibalize each other, pages with no link to the pillar, a shallow pillar or a cocoon closed on itself with no links to the rest of the site. Links between cocoons must be justified by meaning, not systematic.

Frequently asked questions

Semantic cocoon or topic cluster?

Both aim for the same pillar-and-satellites structure. The term cocoon is mostly used in France.

How many pages per cocoon?

As many as there are distinct subtopics to cover, determined by real queries and sub-queries.

Does a cocoon work without link building?

It structures internal architecture, but does not replace external authority.

Related terms

Further reading