Free SEO ToolsDuplicate Content Checker

Free Duplicate Content Checker

Check a URL or text for duplication. Get an originality estimate and a list of possible sources that appear to reuse the content.

Try it on:
5 free runs left
100% free No sign-up needed Results in ~12s No credit card

YOU WILL SEE

1

An originality estimate (labelled)

2

Affected passages

3

Possible source URLs with confidence

4

Rewrite actions

GOOGLE PREVIEW · PART OF YOUR RESULT

Free Duplicate Content Checker | InRankSEO

https://inrankseo.com › tools › duplicate-content-checker

Check your pages for duplicate content and see exactly what matches. Free, live checks, no account needed.

Title: 42/60 chars ✓ · Description: 106/155 chars ✓. Each tool page on InRankSEO gets its own unique, keyword-targeted title and meta description so every tool ranks independently on Google.

CHECK 1 OF 4 · WHAT IS A DUPLICATE CONTENT CHECKER?

What is a duplicate content checker?

A duplicate content checker compares your content against what it can find across the web and estimates how original it is. Our checker takes a URL or pasted text, uses live web context to find possible matches, and returns an originality estimate plus a list of possible duplicate sources.

example.com · What is a duplicate content checker?
CheckStatus
What is a duplicate content checker?Checked

CHECK 2 OF 4 · UNDERSTANDING THE ORIGINALITY SCORE

Understanding the originality score

The score is a 0 to 100 estimate where 100 means the content appears fully original. A lower score suggests duplication or thin content. The score is a heuristic based on web context, not a definitive plagiarism verdict.

example.com · Understanding the originality score
CheckStatus
Understanding the originality scoreChecked

CHECK 3 OF 4 · WHAT THE DUPLICATE CONTENT CHECKER REPORTS

What the Duplicate Content Checker reports

  • An originality estimate (labelled as a heuristic).
  • Affected passages that may be duplicated.
  • Possible source URLs with a confidence indicator.
  • Recommended actions per source.
example.com · What the Duplicate Content Checker reports
CheckStatus
An originality estimate (labelled as a heuristic).Checked
Affected passages that may be duplicated.Checked
Possible source URLs with a confidence indicator.Checked
Recommended actions per source.Checked

CHECK 4 OF 4 · WHAT TO DO ABOUT DUPLICATES

What to do about duplicates

Rewrite thin or copied pages, add canonicals where a page intentionally duplicates another, and request removal or attribution for copies hosted elsewhere. For syndicated content, point a canonical to the original to keep your authority.

example.com · What to do about duplicates
CheckStatus
What to do about duplicatesChecked

WHY DUPLICATE CONTENT MATTERS

Duplicate Content is the part of ranking you fully control.

Real people search Google every day for exactly this. This section answers those searches directly.

What is a duplicate content checker?

A duplicate content checker compares your content against what it can find across the web and estimates how original it is. Our checker takes a URL or pasted text, uses live web context to find possible matches, and returns an originality estimate plus a list of possible duplicate sources.

It is useful before publishing, after a migration, or when you suspect your content has been copied.

Understanding the originality score

The score is a 0 to 100 estimate where 100 means the content appears fully original. A lower score suggests duplication or thin content. The score is a heuristic based on web context, not a definitive plagiarism verdict.

Use it as a signal: a low score means investigate the listed sources and decide whether to rewrite, canonicalise, or request removal.

What the Duplicate Content Checker reports

An originality estimate (labelled as a heuristic).

Affected passages that may be duplicated.

Possible source URLs with a confidence indicator.

Recommended actions per source.

What to do about duplicates

Rewrite thin or copied pages, add canonicals where a page intentionally duplicates another, and request removal or attribution for copies hosted elsewhere. For syndicated content, point a canonical to the original to keep your authority.

68%

of first pages pass title checks

41%

miss a canonical tag

27%

have thin content (<300 words)

9,412

audits run on InRankSEO

DATA FROM 9,412 REAL AUDITS

The most common duplicate content issues we find.

Aggregated and updated monthly from anonymous, real audit data.

Missing canonical tag41%
Meta description too short33%
Missing image alt text28%
Thin content (<300 words)27%
No structured data17%
62%avg pass rate
Pass 62% Warn 21% Fail 17%

FREQUENTLY ASKED QUESTIONS

People also ask about duplicate content

✓ FAQPage schema + HowTo schema + SoftwareApplication schema on every tool page