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#Duplicate content

Duplicate content means the same or very similar text is available at more than one URL. It is usually caused by technical issues such as URL parameters, www and non-www versions or printer-friendly pages. Search engines then have to guess which version to show, which splits signals between them. It is rarely a penalty, but it often wastes visibility. Articles under this tag explain how duplicates appear and how canonical tags, redirects and cleaner URLs fix them.

Alternate Page With Proper Canonical Tag: What It Means2026/10/06 · 8分で読めます

Alternate Page With Proper Canonical Tag: What It Means

Search Console lists pages as Alternate page with proper canonical tag. Learn what the status means, when it is normal and when it reveals…

URL Parameters and SEO: Filters, Tracking and Crawl Waste2026/10/01 · 8分で読めます

URL Parameters and SEO: Filters, Tracking and Crawl Waste

URL parameters from filters, sorting and tracking tags create endless duplicate URLs. Learn which ones to index, canonicalise or block, with clear examples.

WWW or Non-WWW, Slash or No Slash: Pick One URL Version2026/09/30 · 8分で読めます

WWW or Non-WWW, Slash or No Slash: Pick One URL Version

WWW or not, trailing slash or not: search engines treat each variant as a separate URL. Learn how to pick one version, redirect the…

Category and Tag Pages in SEO: Index, Improve or Noindex?2026/09/29 · 7分で読めます

Category and Tag Pages in SEO: Index, Improve or Noindex?

Blog category and tag pages can be strong topic hubs or piles of thin duplicates. Learn when to index them, how to improve them…

Location Pages for SEO: How to Rank in Every Area You Serve2026/09/29 · 7分で読めます

Location Pages for SEO: How to Rank in Every Area You Serve

How to build location pages that rank: what each page needs, how to avoid doorway pages and thin copies, and how to link them…

Thin Content: What It Is and How to Fix It on Your Website2026/09/28 · 7分で読めます

Thin Content: What It Is and How to Fix It on Your Website

What search engines consider thin content, the page types that usually fall into it, and how to decide whether to expand, merge, noindex or…

Keyword Cannibalization: When Your Own Pages Compete2026/09/23 · 8分で読めます

Keyword Cannibalization: When Your Own Pages Compete

What keyword cannibalization is, how to tell real competition between your pages from harmless overlap, and how to fix it by merging, refocusing or…

Hreflang Explained: SEO Basics for Multilingual Websites2026/08/31 · 8分で読めます

Hreflang Explained: SEO Basics for Multilingual Websites

How hreflang tells search engines which language or regional version of a page to show, how to set it up correctly and the mistakes…

Duplicate Content in SEO: Common Causes and How to Fix Them2026/08/19 · 8分で読めます

Duplicate Content in SEO: Common Causes and How to Fix Them

What duplicate content really means for SEO, why it is rarely a penalty, the technical causes behind most duplicates and how to fix each…

Canonical Tags Explained: How to Handle Duplicate URLs2026/08/12 · 8分で読めます

Canonical Tags Explained: How to Handle Duplicate URLs

What a canonical tag is, when to use one, how it differs from redirects and noindex, and how to fix the canonical mistakes that…

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