{"id":11989,"date":"2010-03-31T19:00:37","date_gmt":"2010-03-31T13:30:37","guid":{"rendered":"https:\/\/www.quickonlinetips.com\/archives\/?p=11989"},"modified":"2026-10-12T15:35:33","modified_gmt":"2026-10-12T10:05:33","slug":"bad-duplicate-content","status":"publish","type":"post","link":"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/","title":{"rendered":"Why Is Duplicate Content Bad for SEO? How to Fix It (2026)"},"content":{"rendered":"<p>&#8220;Google hates duplicate content&#8221; is one of the oldest SEO beliefs. In 2010 guest author Chris Ruminski explained why duplicates can push pages out of search results, and suggested blocking duplicate pages with robots.txt. Part of that advice has aged badly. Here&#8217;s what <strong>duplicate content<\/strong> really means for SEO in 2026 and the right way to handle it.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-64637\" src=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo-1024x538.webp\" alt=\"Duplicate content and SEO\" width=\"1024\" height=\"538\" srcset=\"https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo-1024x538.webp 1024w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo-300x158.webp 300w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo-150x79.webp 150w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo-768x403.webp 768w, https:\/\/www.quickonlinetips.com\/archives\/wp-content\/uploads\/duplicate-content-seo.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><strong>Quick answer:<\/strong> Duplicate content is identical or very similar content at more than one URL. Google usually doesn&#8217;t penalise it; it picks one version to show and filters out the rest, which can mean the wrong page ranks or ranking signals are split. Fix duplicates with 301 redirects, rel=&#8221;canonical&#8221; tags or by merging pages. Don&#8217;t block duplicates in robots.txt, because Google then can&#8217;t see which page is the original. Scraped or spun copies made to manipulate rankings are a spam issue.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6ae7dacb34bbf\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #1a202c;color:#1a202c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #1a202c;color:#1a202c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6ae7dacb34bbf\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#Why_duplicate_content_is_a_problem\" >Why duplicate content is a problem<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#Common_causes_of_duplicate_content\" >Common causes of duplicate content<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#How_to_fix_duplicate_content\" >How to fix duplicate content<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#Why_not_robotstxt\" >Why not robots.txt?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#When_someone_copies_your_content\" >When someone copies your content<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#FAQ\" >FAQ<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#Is_there_a_duplicate_content_penalty\" >Is there a duplicate content penalty?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#Can_I_republish_my_posts_on_Medium_or_LinkedIn\" >Can I republish my posts on Medium or LinkedIn?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.quickonlinetips.com\/archives\/2010\/03\/bad-duplicate-content\/#How_much_similar_content_is_too_much\" >How much similar content is too much?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_duplicate_content_is_a_problem\"><\/span>Why duplicate content is a problem<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>The wrong URL ranks<\/strong>: Google may show a tracking-parameter URL or a print version instead of your main page.<\/li>\n<li><strong>Split signals<\/strong>: links and engagement are spread across copies.<\/li>\n<li><strong>Wasted crawling<\/strong>: on large sites, bots spend time on duplicates instead of new content.<\/li>\n<li><strong>Scrapers outranking you<\/strong>: occasionally a copied version ranks above the original.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Common_causes_of_duplicate_content\"><\/span>Common causes of duplicate content<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>http and https, or www and non-www versions both working.<\/li>\n<li>URL parameters (sorting, tracking, session IDs).<\/li>\n<li>Printer-friendly pages and AMP versions.<\/li>\n<li>Category, tag and archive pages showing full posts.<\/li>\n<li>Several of your own posts covering the same topic, which leads to <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2011\/02\/cannibalizing-your-own-keywords\/\">keyword cannibalization<\/a>.<\/li>\n<li>Syndicated or scraped copies on other sites.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"How_to_fix_duplicate_content\"><\/span>How to fix duplicate content<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li><strong>301 redirects<\/strong>: send duplicate URLs to the main version.<\/li>\n<li><strong>Canonical tags<\/strong>: tell Google which URL is preferred; see <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2009\/04\/seo-wordpress-plugin-drops-google-pagerank\/\">canonical URLs in WordPress<\/a>.<\/li>\n<li><strong>Merge similar posts<\/strong> into one stronger article.<\/li>\n<li><strong>Noindex<\/strong> thin archive pages if they add little value.<\/li>\n<li><strong>Use excerpts<\/strong> on archive pages instead of full posts.<\/li>\n<li><strong>Ask syndication partners<\/strong> to add a canonical link to your original.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Why_not_robotstxt\"><\/span>Why not robots.txt?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The 2010 advice to block duplicates in robots.txt can backfire: Google can&#8217;t crawl blocked pages, so it can&#8217;t see canonical tags or redirects, and it may still index the URL without content.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"When_someone_copies_your_content\"><\/span>When someone copies your content<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Most scrapers don&#8217;t outrank originals, but if one does, you can file a DMCA request with Google. Our tips to <a href=\"https:\/\/www.quickonlinetips.com\/archives\/2013\/03\/stop-rss-feed-scraping-content-theft\/\">stop RSS feed scraping<\/a> also help.<\/p>\n<p><em>Originally written by guest author Chris Ruminski of 2makemoneyontheweb.com. Updated for 2026 by QuickOnlineTips.<\/em><\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Is_there_a_duplicate_content_penalty\"><\/span>Is there a duplicate content penalty?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Not for ordinary duplicates. Google filters them. Deliberate copying to manipulate rankings is treated as spam.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_I_republish_my_posts_on_Medium_or_LinkedIn\"><\/span>Can I republish my posts on Medium or LinkedIn?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Yes, ideally with a canonical link or a note pointing to the original, and after Google has indexed your version.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_much_similar_content_is_too_much\"><\/span>How much similar content is too much?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>There&#8217;s no fixed percentage. Make each page offer something unique and useful.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Google hates duplicate content&#8221; is one of the oldest SEO beliefs. In 2010 guest author Chris Ruminski explained why duplicates&#8230;<\/p>\n","protected":false},"author":4,"featured_media":64637,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[6,41],"tags":[44],"class_list":["post-11989","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogging","category-search-engine-optimization","tag-guest-posts"],"_links":{"self":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/11989","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/comments?post=11989"}],"version-history":[{"count":1,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/11989\/revisions"}],"predecessor-version":[{"id":64638,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/posts\/11989\/revisions\/64638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media\/64637"}],"wp:attachment":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media?parent=11989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/categories?post=11989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/tags?post=11989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}