Keyword Cluster Builder

plugin: seo updated: 2026-01-20

Keyword Cluster Builder

When to Use

• Expanding seed keywords to comprehensive lists (50-100+)
• Grouping keywords by topic for pillar content strategy
• Mapping keywords to funnel stages
• Identifying content gaps in keyword coverage

Expansion Techniques

Question Modifiers

• What is {keyword}
• How to {keyword}
• Why {keyword}
• When to {keyword}
• Where to {keyword}

Comparative Modifiers

• {keyword} vs {competitor}
• {keyword} alternatives
• best {keyword}
• {keyword} comparison

Intent Modifiers

• {keyword} guide
• {keyword} tutorial
• {keyword} examples
• {keyword} template
• buy {keyword}
• {keyword} pricing

Audience Modifiers

• {keyword} for beginners
• {keyword} for {industry}
• {keyword} for small business
• {keyword} for enterprise

Clustering Algorithm

1. Extract Seed Topics: Identify main themes from expanded list
2. Group by Semantic Similarity: Keywords with overlapping meaning
3. Map Intent: Assign I/C/T/N to each cluster
4. Identify Pillar: Highest-volume, broadest term = pillar
5. Map Supporting: Lower-volume terms support pillar

Cluster Structure

PILLAR: "content marketing" (highest volume)
+-- CLUSTER: "content marketing strategy" (commercial)
|   +-- content marketing plan template
|   +-- content marketing framework
|   +-- how to create content marketing strategy
+-- CLUSTER: "content marketing examples" (informational)
|   +-- B2B content marketing examples
|   +-- content marketing case studies
|   +-- content marketing success stories
+-- CLUSTER: "content marketing tools" (commercial)
    +-- best content marketing tools
    +-- content marketing software
    +-- content marketing platforms

Intent Classification Rules

Output Format

When generating keyword clusters, use this format:

## Keyword Cluster Report

**Seed Keyword**: {seed}
**Total Keywords**: {count}
**Clusters**: {cluster_count}

### Cluster 1: {cluster_name}
**Intent**: {intent}
**Funnel Stage**: {stage}
**Keywords**:
1. {keyword1} - {estimated_volume}
2. {keyword2} - {estimated_volume}
...

### Cluster 2: {cluster_name}
...