Pro SERP Cluster
Pro SERP Cluster is a free web tool that groups keywords according to overlap in actual Google search results.
What Pro SERP Cluster is
Pro SERP Cluster is a free web tool that groups keywords according to overlap in actual Google search results. It uses SERP data to show which keywords share search intent, helping identify terms competing for the same rankings and opportunities to consolidate content. The tool also 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 supports up to 500 keywords. Users can set a target region, language and overlap threshold to adjust the clustering. Retrieving Google SERPs requires a Serper.dev API key, which is stored locally for the session only. Results can be exported as CSV, and CSV import and export are included in the free plan. The product is aimed at professional SEOs planning content, building topic authority or addressing keyword cannibalization.
Good
- Free plan supports up to 500 keywords per run.
- Uses Google SERP overlap for clustering.
- Region, language and overlap threshold are configurable.
- Results can be exported as CSV.
Watch out
- Requires a Serper.dev API key to retrieve SERPs.
- Runs are limited to 500 keywords.
Who it suits
It is aimed at professional SEOs planning content, building topic authority or addressing cannibalization. It may suit people who want to group keywords using search-result overlap and export clusters as CSV.
Verdict
Pro SERP Cluster offers keyword grouping based on Google result overlap, with controls for region, language and clustering strictness. Users need a Serper.dev key to retrieve results, and each run is capped at 500 keywords.
Plans and prices
From Pro SERP Cluster's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | up to 500 keywords per clustering run · CSV import/export |
The facts
Each one read from Pro SERP Cluster's own pages, with the date it was checked.
What it does
- API integration
- Users connect a Serper.dev API key to retrieve Google SERPs.checked 30 Sep 2026
- API key storage
- The Serper.dev API key is stored locally for the session only.checked 30 Sep 2026
- Audience
- The product is built for professional SEOs planning content, building topic authority, or fixing cannibalization.checked 30 Sep 2026
- Cannibalization
- It identifies keywords competing for the same rankings so content can be consolidated.checked 30 Sep 2026
- Configuration
- Users can select a target region, language, and overlap threshold for clustering strictness.checked 30 Sep 2026
- Data source
- The tool uses real Google SERP data rather than NLP or embedding approximations.checked 30 Sep 2026
- Export
- Cluster results can be exported as a CSV file.checked 30 Sep 2026
- Input limit
- A clustering run supports up to 500 keywords.checked 30 Sep 2026
- Purpose
- Pro SERP Cluster groups keywords using overlap among actual Google search results.checked 30 Sep 2026
- Search intent
- SERP overlap is used to reveal shared search intent between keywords.checked 30 Sep 2026
- Topic clusters
- It groups keywords into topic clusters for hub-and-spoke content, topical-authority building, and site-architecture planning.checked 30 Sep 2026
Money
- Content planning
- It supports blog post optimization, pillar-page creation, and content-gap analysis.checked 30 Sep 2026
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