Duplicate Content Checker (Your Website)

What is internal duplicate content?

Duplicate content means two or more pages with the same or very similar text. Inside one website it usually happens by accident: location pages that only swap the city name, product pages with the same manufacturer description, printer-friendly versions, or the same page reachable at several URLs.

Google does not punish normal duplication, but it does have to choose one version to show. If many of your pages look alike, Google may index only a few of them, split ranking signals between them or show the wrong one. Google explains this in its guide to consolidating duplicate URLs.

What this duplicate content checker does

This tool compares pages from your own website:

• Body text similarity for every pair of pages. Menus, headers, footers and sidebars are removed first so only the main content is compared.
• Duplicate title tags
• Duplicate meta descriptions
• Duplicate H1 headings

Similarity is measured by how many 5-word phrases two pages share. Above 50% usually means the pages are near-duplicates. Between 25% and 50% is worth a look.

How to use it

1. Paste 2 to 10 URLs from your site, one per line. Similar pages, such as city or service pages, are the best candidates.
2. Click Find duplicate content.
3. Review the tag checks, then the similarity table sorted from most to least similar.

How to fix duplicate content

• Rewrite near-duplicate pages so each has unique, useful information. For location pages, add local details, team photos, reviews and directions.
• Merge pages that target the same topic and 301 redirect the old URL to the merged page. Test it with the Redirect Checker.
• Add a canonical tag pointing to the main version when duplicates must stay, like filtered product lists.
• Write unique titles and descriptions for every page with our Meta Tag Generator.

Want to compare two pieces of text directly, such as a draft and a competitor article? Use the Text Similarity Checker.

Prevent duplicates from the start

When you create several similar pages, plan a unique angle for each one before writing. For city pages, collect local facts, photos, reviews and project examples from each area. For products, write your own description instead of copying the manufacturer's. Then check new drafts against existing pages with the Text Similarity Checker before publishing, and give every page its own title using the SERP Preview Tool.

Common causes of duplicate content

Most duplicate content is created by accident, not by copying:

• URL variations: http and https, www and non-www, with and without a trailing slash.
• Tracking parameters: ?utm_source=... or ?ref=... creating new URLs for the same page.
• Filter and sort options on shop category pages.
• Printer-friendly or AMP versions.
• Location pages where only the city name changes, for example "Plumber in Lahore" and "Plumber in Karachi" with identical text.
• Product variants with the same description for every colour or size.
• Tag and category archives in blogs that show the same posts.

Duplicate content and Google

Google does not punish a site just for having some duplicate pages. Instead, it groups the duplicates and picks one version to show. The problem is that it may pick a version you did not want, and links and signals get split between the copies. Google's guide on canonicalization explains how this works and how to tell Google your preferred URL.

Deliberately copying content from other sites to manipulate rankings is a different matter, and that can lead to action under Google's spam policies.

Choosing the right fix

Making similar pages unique

If you serve several cities or sell similar products, you can keep the pages but make each one genuinely different. Add local details such as areas served, local landmarks, customer reviews from that city, local photos and specific prices. For products, describe what is special about each variant and add real photos. After rewriting, compare two pages with the Text Similarity Checker to see how much changed. Then confirm each page has its own title and description with the Meta Tag Checker and redirect any retired URLs, checking them with the Redirect Checker.

Example: city pages that are too similar

An agency has pages for "Web Design in Lahore", "Web Design in Karachi" and "Web Design in Islamabad". The checker shows 85 percent shared text between them. The fix is to keep one strong general page and give each city page genuinely local content: projects completed in that city, client testimonials from local businesses, the local office address or service area, and city-specific pricing or turnaround times. After rewriting, the shared text drops well below half and each page has a real reason to exist.

Last updated: October 25, 2026