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Pro SERP Cluster
What it is
Pro SERP Cluster is a free web tool for grouping keywords according to overlap in actual Google search results. It uses SERP data to identify terms that share search intent, helping professional SEOs spot keywords competing for the same rankings and consider consolidating content. The tool supports blog post optimization, pillar-page creation, content-gap analysis, and topic clusters for hub-and-spoke planning, topical authority, and site architecture. Each clustering run can include up to 500 keywords. Users can set a target region and language, then adjust an overlap threshold to control clustering strictness. The tool requires a Serper.dev API key to retrieve Google results; the key is kept locally for the session only. Users can import and export CSV files, and results can be exported as CSV. The product is aimed at professional SEOs planning content, building topic authority, or addressing keyword cannibalization.
For and against
For
- Groups terms using actual Google SERP overlap
- Supports up to 500 keywords per run
- Offers region, language, and overlap settings
- Exports cluster results as CSV
- Free plan includes CSV import and export
Against
- Requires a Serper.dev API key for Google SERPs
- Each clustering run is limited to 500 keywords
The verdict
Pro SERP Cluster offers a focused way to organize keywords by shared Google search results, with settings for market and clustering strictness. Its Serper.dev API key requirement and 500-keyword run cap are worth considering before use.
Who it suits
Pro SERP Cluster suits professional SEOs planning content, building topic authority, or finding keywords that compete for the same rankings. It can also support teams organizing pillar pages, topic clusters, or content-gap work.
Plans and prices
Free
up to 500 keywords per clustering run · CSV import/export
Read 30 Sep 2026 · proserpcluster.com
On the record
- API integration
- Users connect a Serper.dev API key to retrieve Google SERPs.proserpcluster.com · read 30 Sep 2026
- API key storage
- The Serper.dev API key is stored locally for the session only.proserpcluster.com · read 30 Sep 2026
- Audience
- The product is built for professional SEOs planning content, building topic authority, or fixing cannibalization.proserpcluster.com · read 30 Sep 2026
- Cannibalization
- It identifies keywords competing for the same rankings so content can be consolidated.proserpcluster.com · read 30 Sep 2026
- Configuration
- Users can select a target region, language, and overlap threshold for clustering strictness.proserpcluster.com · read 30 Sep 2026
- Content planning
- It supports blog post optimization, pillar-page creation, and content-gap analysis.proserpcluster.com · read 30 Sep 2026
- Data source
- The tool uses real Google SERP data rather than NLP or embedding approximations.proserpcluster.com · read 30 Sep 2026
- Export
- Cluster results can be exported as a CSV file.proserpcluster.com · read 30 Sep 2026
- Input limit
- A clustering run supports up to 500 keywords.proserpcluster.com · read 30 Sep 2026
- Purpose
- Pro SERP Cluster groups keywords using overlap among actual Google search results.proserpcluster.com · read 30 Sep 2026
- Search intent
- SERP overlap is used to reveal shared search intent between keywords.proserpcluster.com · read 30 Sep 2026
- Topic clusters
- It groups keywords into topic clusters for hub-and-spoke content, topical-authority building, and site-architecture planning.proserpcluster.com · read 30 Sep 2026
