Definition

A topic cluster is an SEO content architecture where a central pillar page links to and from multiple related subtopic pages — collectively covering a subject area comprehensively.

Detailed Explanation

        [Cluster: ROAS Calculator]
               ↗     ↖
[Cluster: CPA] → [PILLAR: Marketing Metrics] ← [Cluster: Google Ads Glossary]
               ↘     ↙
        [Cluster: GA4 Reference]

Google interprets interconnected depth as topical authority. Clusters also capture long-tail traffic that a single pillar cannot rank for alone.

Nepal Context

Build Nepal-specific clusters (pricing, benchmarks, careers) linked to global methodology clusters (metrics, glossaries). Cross-link “Nepal Context” sections in dictionary entries to local cluster pages for unique E-E-A-T.

Practical Examples

  1. Map 1 pillar + 10–30 clusters before writing — spreadsheet with keywords and intent.
  2. Publish pillar first, then clusters weekly — each strengthens the hub.
  3. Update pillar quarterly with links to new clusters and refreshed data tables.

Key Takeaways

  • Clusters beat isolated posts for authority and rankings.
  • Plan architecture before production.
  • Interlink aggressively but contextually.

Common Mistakes

  1. Random posts without cluster plan — no compounding authority.
  2. Orphan cluster pages — no links to/from pillar.
  3. Same keyword on pillar and cluster — intent overlap causes cannibalization.