Topic Cluster

Definition

A topic cluster is an SEO content strategy in which a central “pillar content” topic is supported by multiple interlinked subpages (“cluster content”). This structure signals thematic relevance to search engines and improves internal linking.

Examples of Measures

• Central pillar page on the topic Digital Marketing
• Linked blog articles on subtopics such as SEO, SEA, and social media
• Systematic internal links between pillar and cluster content

Benefits

• Improved SEO visibility through topical authority
• Structured user guidance
• Higher rankings for main and secondary keywords

Key Components

• Pillar page as the central foundation
• Cluster pages covering specific subtopics
• Clean internal linking structure

Priorities

• Clear keyword strategy
• Consistent internal linking
• High-quality, relevant content

Trends

• AI-powered content cluster analysis
• Automated content gap identification
• Voice search–optimized topic clusters