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ContentGecko Keyword Clustering

API—OSS—FREEyesDOCS5/5
CK5.9#7 of 27
outWeb—Windows—Mac—Linux—Android—iOS

Ranked in Keyword Clustering Tools ·Free plan· paid from €19.90/mo

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About

ContentGecko Keyword Clustering groups keywords by similarity in Google search results, giving SEO and content planners a way to organize related terms. For each keyword, it fetches Google’s top 10 results and forms clusters using URLs shared across those results. Analysis adapts to the selected country and language, and users can set a minimum overlap; a higher threshold produces tighter clusters. Users can provide a domain to check its organic rank in the report and export clusters as CSV. The free version handles up to 200 keywords per operation. The paid plan costs 19.90 EUR per month and handles up to 20,000 keywords in one operation, with 50,000 keyword credits per month. Paid features include a premium algorithm, labels for search intent, page type, and marketing funnel, clustering history, and dedicated support. The tool focuses on SERP similarity, not search volume, which requires a separate keyword research tool. ContentGecko says it was built in Tallinn, Estonia.

Who it is for

It suits SEO and content teams organizing keyword research, building content clusters, and planning around SERP similarity. Users needing search volume data will need a separate keyword research tool.

What is good

  • Uses Google’s top 10 results per keyword.
  • Localizes analysis by country and language.
  • Can check a domain’s organic rank.
  • Exports clusters as CSV.
  • Paid plan supports up to 20,000 keywords per operation.

What to know first

  • Free version handles up to 200 keywords per operation.
  • Search volume requires a separate tool.
  • Paid plan costs 19.90 EUR per month.

Verdict

ContentGecko clusters keywords based on shared Google result URLs, with localization, overlap controls, and CSV export. The free version has a 200-keyword operation limit; paid features add larger operations, labels, history, and support.

Compared on keyword clustering tools

Free plan
Yescontentgecko.io
Clustering method
serpcontentgecko.io
Keyword limit
20,000 keywordscontentgecko.io
SERP analysis
Yescontentgecko.io
Batch upload
Yescontentgecko.io
Export formats
CSVcontentgecko.io

Facts

Purpose
The free SERP based tool groups keywords according to similarity among Google search results.contentgecko.io · 30 Sept 2026
Localization
SERP analysis adapts to the selected country and language.contentgecko.io · 30 Sept 2026
Overlap setting
Users can set minimum SERP overlap; higher values create tighter clusters.contentgecko.io · 30 Sept 2026
Domain ranking
Users can optionally provide their domain to check its organic rank in the report.contentgecko.io · 30 Sept 2026
Export
Clusters can be exported as CSV for use with other SEO and content planning tools.contentgecko.io · 30 Sept 2026
Search volume
The tool focuses on SERP similarity and says search volume data requires a separate keyword research tool.contentgecko.io · 30 Sept 2026
Processing limit
The free version clusters up to 200 keywords at once, while the paid version handles up to 20,000 in one operation.contentgecko.io · 30 Sept 2026
Paid features
Paid features include search intent, page type and marketing funnel labels for each cluster, plus clustering history.contentgecko.io · 30 Sept 2026
Support
Free users receive general website support chat and paid subscribers receive dedicated clustering support.contentgecko.io · 30 Sept 2026
Who it is for
The page describes use cases including organizing keyword research, creating content clusters, improving SEO strategy and avoiding keyword cannibalization.contentgecko.io · 30 Sept 2026
Privacy and security
The privacy policy says ContentGecko OÜ uses technical and organizational security measures, while noting that online transmission and storage cannot be guaranteed fully secure.contentgecko.io · 30 Sept 2026
Company location
ContentGecko says it was built in Tallinn, Estonia.contentgecko.io · 30 Sept 2026

Company

Headquarters
Tallinn, Estoniacontentgecko.io · 28 Sept 2026

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Where it ranks on Inferse

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