LazySEM
🔍 Similarity, Gaps & Clusters

Stop cannibalization. Find gaps. Build clusters.

Protect your visibility by catching overlaps, missed topics, and messy clusters, before Google does.

Check for Similar Pages
✓ Duplicate/similar pages: overlap score + merge/redirect/differentiate plan ✓ Competitor gaps: topics SERP competitors target and you don't ✓ Topic clusters: flagged with every page listed

Paste sitemap or path · Analyze 500+ URLs at once · Multi-language

How LazySEM spots overlaps, gaps & clusters

Three quick scans. Zero spreadsheets. One clear action plan.

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1. Find similar pages

We flag duplicate or overlapping URLs using real content and score each match by risk level.

  • Get merge, redirect, or differentiate suggestions instantly.
Run Similarity Scan →
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2. Uncover competitor gaps

See what topics your SERP competitors cover that you don't.

  • Turn missed topics into your next briefs.
Find Gaps →
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3. Map your site's clusters

We auto-detect topic clusters and list every page inside, so you can plan hubs and links with confidence.

  • No manual grouping or crawling needed.
See Clusters →

Stop content conflicts before they hurt your rankings

Protect your visibility by catching overlaps, missed topics, and messy clusters, before Google does.

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Find topic overlaps

Automatically flag duplicate or conflicting pages so you can consolidate with confidence. No more mixed signals to Google.

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Get smart similarity scores

See overlap scores and instant merge or delete suggestions. Know what to fix, and why.

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Compare posts or URL sets

Scan pages, sections, or full sites in seconds. Perfect for audits and pruning.

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Clean up your content strategy

Streamline your structure for better rankings and crawl efficiency. A faster, clearer, more focused site.

How it works

Find and fix cannibalization in three simple steps, powered by AI semantic analysis.

📥 Paste or upload URLs

Import your sitemap, or upload a CSV. We'll handle the rest.

🧠 AI analyzes content similarity

Beyond keywords: we scan your content and intent to detect real topic overlap.

✅ Get clear fix suggestions

See which pages compete and exactly what to do: merge, delete, or keep.

What audit-runners say

We found dozens of duplicate blog posts competing for the same keyword. After cleaning them up, organic traffic jumped 22% in a month.”
D
Daniel R.
Content Strategist, SaaS
The clustering tool is a lifesaver. It flagged topic groups we didn't even know were overlapping. Now our site structure actually makes sense.”
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Elena M.
SEO Lead, E-commerce Brand
Ran the similarity check on 300 URLs, took less than five minutes. I used to spend hours finding content cannibalization by hand.”
C
Chris P.
Freelance SEO
The content gap comparison helped us spot missing topics vs competitors and rewrite smarter. LazySEM does what three tools used to.”
J
Jodie K.
Head of Content, Marketing Agency

Frequently asked questions

Everything you need to know about our similarity checker.

What does this tool compare?
It checks your pages for semantic overlap, analyzing on-page content to detect duplicates, content clusters, or competing topics.
What's considered a “similar” page?
Pages whose content and intent overlap enough to compete for the same queries. Each match gets an overlap score and a risk level, with a merge, redirect, or differentiate suggestion.
Can I compare pages in bulk?
Yes! You can analyze entire sites, sections, or uploaded CSV lists. LazySEM automatically compares all URLs and highlights risky overlaps.
Does it work for multilingual sites?
Absolutely. The tool supports 50+ languages, so you can catch duplicate or conflicting pages across all language versions.
Who is this for?
For SEOs, content teams, and agencies who want to spot keyword cannibalization, fix content conflicts, and organize site clusters fast.

Stack these tools together

Automate your SEO maintenance, from fixing duplicate content to publishing optimized articles.

🔍

Similarity Checker

Find duplicate or overlapping pages instantly. Fix keyword cannibalization before it hurts your rankings.

→ Run Content Analysis
📈

URL Monitoring

Get real-time alerts when your pages change or drop from SERPs.

→ Start Monitoring URLs
✏️

AI Article Generator

Build briefs from live SERP data, then auto-generate full drafts you can refine with tone, brand, and input.

→ Create Brief & Draft

Clean up your content. Protect your rankings.

Fast, accurate, and built for modern SEO audits.

Start Similarity Scan Free

No credit card required. Analyze up to 50 URLs for free.