Everything you need to compete
SERP-Based Clustering
Group keywords by actual SERP overlap, not semantic guesses. When two keywords share ranking URLs, they belong in the same cluster.
AI Intent Detection
Automatically classify every cluster by search intent — informational, commercial, transactional, or navigational — so you know what type of content to create.
Bulk Keyword Processing
Upload or paste hundreds of keywords at once. Our engine clusters them in seconds, saving hours of manual spreadsheet work.
Volume & Difficulty Aggregation
See combined search volume and average difficulty for each cluster — instantly identify your highest-opportunity topic groups.
Content Strategy Mapping
Turn clusters into a content plan. Each cluster becomes a potential page with suggested content type, pillar/cluster hierarchy, and priority ranking.
Export & Integration
Export clusters as CSV or send them directly to the Brief Generator to create data-backed SEO content briefs for each topic group.
How Clustering Works
From a messy keyword list to a structured content strategy in three steps.
Import Your Keywords
Paste a list, upload a CSV, or pull keywords from your existing SERP analyses. Add up to 500 keywords per batch.
Analyze SERP Overlap
We fetch live Google results for each keyword and compare which URLs rank across multiple queries. Keywords sharing 3+ ranking URLs are grouped together.
Review & Refine Clusters
Explore your clusters with aggregated volume, intent labels, and content opportunity scores. Merge, split, or rename clusters to match your strategy.
Clustering Intelligence
Go beyond keyword lists — understand how Google groups topics and build your content strategy around real data.
Clusters Built on Real SERP Data
5
clusters
40
keywords
354,300
total volume
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Keyword Clustering FAQ
What is keyword clustering?
Keyword clustering is the process of grouping related keywords that can be targeted by a single page. Instead of creating separate pages for "best project management tools" and "top pm software," clustering reveals they belong together — because Google ranks the same URLs for both.
How does SERP-based clustering differ from semantic clustering?
Semantic clustering groups keywords by how similar they sound or look. SERP-based clustering groups them by real ranking overlap — checking whether Google actually serves the same results for two keywords. This is more accurate because it reflects Google's understanding of search intent, not just literal word similarity.
How many keywords can I cluster at once?
You can cluster up to 500 keywords per batch on the Pro plan, and up to 2,000 on the Agency plan. Each keyword triggers a real-time SERP lookup, so batch sizes are tiered to ensure data quality and speed.
What intent types are detected?
Serplight classifies every cluster into four intent categories: Informational (learning), Commercial (comparing), Transactional (buying), and Navigational (brand-seeking). Intent is determined by analyzing SERP features, result types, and page content across the cluster.
Can I connect clusters to the Brief Generator?
Yes. Once you've finalized your clusters, you can send any cluster directly to the Brief Generator. It will use the primary keyword and all supporting keywords from the cluster to generate a comprehensive, data-backed content brief.
How is SERP overlap calculated?
For each pair of keywords, we compare the top 10 organic results. If 3 or more URLs appear in both result sets, the keywords are grouped into the same cluster. You can adjust the overlap threshold to make clusters tighter or broader.