Topic Cluster Generator — Group Keywords by Cluster
Topic Cluster Generator
A topic cluster generator groups a flat keyword list into related clusters by shared terms and phrasing, then labels each cluster with a name and identifies the broadest, highest-volume keyword in it as the likely pillar page, with the remaining narrower keywords proposed as supporting pages that link back to it. This turns an unstructured list into a site structure that concentrates topical authority instead of spreading it across disconnected pages.
Paste a keyword list and get it grouped into topic clusters with a suggested pillar page and supporting articles for each group. Free, no signup.
Paste your keyword list
One keyword per line, exported from your keyword research tool or Search Console. No volume or difficulty data is required, though including it improves pillar selection.
Review the generated clusters
The tool groups keywords that share significant words or phrasing into named clusters — for example everything containing "email marketing" becomes one cluster distinct from "social media marketing".
Build pillar and supporting pages from the output
Within each cluster, the broadest keyword is marked as the pillar candidate. Build one comprehensive page for it, then one focused page per supporting keyword, all internally linked back to the pillar.
Frequently asked questions
What is a topic cluster in SEO?
A topic cluster is a group of pages built around one broad pillar page and several narrower supporting pages, all interlinked. It signals to search engines that a site covers a topic in depth, which tends to improve rankings for the whole group rather than any single page.
How many supporting pages does a pillar page need?
There is no fixed number, but most effective clusters have between four and ten supporting pages covering distinct subtopics or long-tail variants. Fewer than three rarely demonstrates enough depth; beyond ten, consider splitting into two pillar topics.
How is a topic cluster different from a content silo?
Both group related content, but a silo restricts linking within its own section, while a cluster explicitly links supporting pages up to a central pillar and the pillar back down to each supporting page, creating a hub-and-spoke structure rather than an isolated section.
Can I build topic clusters from Search Console data?
Yes. Export the query list from Search Console's Performance report, paste it into a clustering tool, and use impression volume to spot which clusters already have visibility but need a proper pillar page to consolidate scattered ranking pages.