Keyword Clustering.

Keyword clustering groups semantically related keywords that share the same search intent and can realistically be targeted by a single URL. Rather than creating separate pages for 'content marketing strategy', 'content strategy for SEO', and 'how to build a content marketing strategy'—all of which Google treats as the same intent—clustering groups them under one comprehensive page that can rank for all.

How to Cluster Keywords

Clustering methods range from manual (grouping by intent and topic inspection) to AI-powered (using embedding similarity to automatically group related terms). The most reliable approach analyses which keywords produce overlapping SERPs—if 8 of the top 10 results are the same for two keywords, they likely belong in the same cluster.

Clustering in Content Planning

Building content calendars around keyword clusters ensures efficiency: each piece of content captures a larger slice of organic traffic, reduces internal keyword cannibalisation, and signals topical depth to search engines. Clusters also naturally inform topic cluster architecture—clusters of clusters map to pillar and cluster content structures.