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Duplicate Content Checker

Paste two URLs or two blocks of text and see how similar they are — with a plain-English verdict on whether Google will treat them as duplicates.

Text A

0 words

Text B

0 words

Paste content into both boxes to see a similarity score.

How this works

We break both texts into overlapping 5-word phrases and measure how many they share (Jaccard similarity). It's the same shingling approach crawlers use to spot near-duplicates. It's a heuristic, not Google's verdict — always confirm impact in Search Console's Pages report.

What to do next

Read the duplicate content guide → how to find, fix, and stop losing rankings to duplicate URLs.
Canonical tags vs 301 redirects vs noindex → pick the right fix so you don't send conflicting signals.