  {"id":1327,"date":"2009-01-24T23:17:20","date_gmt":"2009-01-25T05:17:20","guid":{"rendered":"http:\/\/www.masonworld.com\/?p=1327"},"modified":"2026-04-03T08:06:53","modified_gmt":"2026-04-03T13:06:53","slug":"a-duplicate-content-experiment","status":"publish","type":"post","link":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/","title":{"rendered":"What a Duplicate Content Experiment Taught Me About Google and SEO"},"content":{"rendered":"<p>In 2009, I ran an experiment to test whether Google actually penalizes duplicate content. The SEO community was full of debate about it, and I wanted to see for myself. What I learned is still relevant to how content and SEO work today, though the details have changed dramatically.<\/p>\n<h2>The Experiment<\/h2>\n<p>I created a niche site targeting keywords with decent AdSense payouts. I did keyword research, picked a domain, and identified six target keywords. Then, instead of writing original content, I went to EzineArticles.com and found one good article for each keyword. I posted each article on a new WordPress blog with only minor modifications: a new introductory paragraph and keyword-optimized title tags.<\/p>\n<p>To promote the site, I built backlinks through a blog network, registered with a link exchange service, and submitted to social bookmarking sites. Then I waited to see what would happen.<\/p>\n<p>My hypothesis was that Google could not reliably distinguish between legitimately syndicated content and scraped duplicate content, and that the site would rank for its target keywords based on the strength of its backlinks rather than the originality of its content.<\/p>\n<h2>What Actually Happened<\/h2>\n<p>In 2009, this kind of approach could work, at least for a while. Sites built on syndicated content with aggressive link building could rank and generate ad revenue. But Google was already working on solving this problem, and the solutions came in waves.<\/p>\n<p>The Panda update in 2011 specifically targeted thin and low-quality content, including sites built primarily on duplicate or scraped material. The Penguin update in 2012 went after manipulative link building practices. Together, these updates demolished the business model my experiment was testing.<\/p>\n<h2>What This Means for Content in 2026<\/h2>\n<p>Google is dramatically better at understanding content in 2026 than it was in 2009. The search engine can identify the original source of content, understand semantic meaning rather than just matching keywords, and evaluate whether a page adds genuine value for the user.<\/p>\n<p>Duplicate content does not trigger a &#8220;penalty&#8221; in the traditional sense. Google does not punish you for having syndicated content. What it does is choose which version of duplicated content to show in search results, and it almost always chooses the original source or the most authoritative version. If your site is the copy, you simply will not rank.<\/p>\n<p>The practical implication is straightforward. If you want organic search traffic, you need to create original content that offers something the existing results do not. That might mean a unique perspective, original data, better organization, more current information, or deeper expertise. Simply republishing what already exists will not earn you rankings no matter how many backlinks you build.<\/p>\n<h2>Legitimate Content Syndication Still Works<\/h2>\n<p>There are legitimate reasons to syndicate content in 2026. Republishing your blog post on Medium or LinkedIn with a canonical tag pointing back to the original is fine. Syndicating your content through a partnership with another publication can expand your reach. Guest posting with original content on other sites builds authority and backlinks.<\/p>\n<p>The key distinction is intent and value. Are you creating something useful for readers, or are you trying to trick a search engine? Google has gotten remarkably good at telling the difference.<\/p>\n<h2>The Bottom Line<\/h2>\n<p>My 2009 experiment tested whether you could build a profitable site on other people's content. The short answer in 2026 is no. Invest your time in creating original, valuable content and you will build something that grows over time. Try to shortcut the process with duplicate content and you will build something that Google ignores.<\/p>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BlogPosting\",\n  \"name\": \"What a Duplicate Content Experiment Taught Me About Google and SEO\",\n  \"headline\": \"What a Duplicate Content Experiment Taught Me About Google and SEO\",\n  \"url\": \"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/\",\n  \"datePublished\": \"2009-01-24T23:17:20\",\n  \"dateModified\": \"2026-04-03\",\n  \"description\": \"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.\",\n  \"author\": {\n    \"@type\": \"Person\",\n    \"name\": \"Mark Mason\",\n    \"url\": \"https:\/\/www.latenightim.com\/about\/\",\n    \"jobTitle\": \"Host, Late Night Internet Marketing Podcast\",\n    \"description\": \"Mark Mason helps part-time entrepreneurs build internet businesses one night at a time. Podcasting since 2009.\",\n    \"sameAs\": [\n      \"https:\/\/podcasts.apple.com\/us\/podcast\/late-night-internet-marketing-mark-mason-affiliate\/id323964382\",\n      \"https:\/\/www.facebook.com\/latenightim\",\n      \"https:\/\/twitter.com\/markmason\"\n    ]\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Late Night Internet Marketing\",\n    \"url\": \"https:\/\/www.latenightim.com\/\"\n  }\n}\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In 2009, I ran an experiment to test whether Google actually penalizes duplicate content. The SEO community was full of debate about it, and I wanted to see for myself. What I learned is still relevant to how content and SEO work today, though the details have changed dramatically. The Experiment I created a niche [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"duplicate content experiment","_yoast_wpseo_title":"What a Duplicate Content Experiment Taught Me About SEO | LNIM","_yoast_wpseo_metadesc":"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[23],"tags":[],"class_list":["post-1327","post","type-post","status-publish","format-standard","hentry","category-internet-marketing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What a Duplicate Content Experiment Taught Me About SEO | LNIM<\/title>\n<meta name=\"description\" content=\"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What a Duplicate Content Experiment Taught Me About SEO | LNIM\" \/>\n<meta property=\"og:description\" content=\"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/\" \/>\n<meta property=\"og:site_name\" content=\"Late Night Internet Marketing Podcast with Mark Mason\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/masonworld\" \/>\n<meta property=\"article:published_time\" content=\"2009-01-25T05:17:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-03T13:06:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.latenightim.com\/wp-content\/uploads\/2016\/06\/latenightlogo.png\" \/>\n\t<meta property=\"og:image:width\" content=\"434\" \/>\n\t<meta property=\"og:image:height\" content=\"208\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Mark Mason\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@masonworld\" \/>\n<meta name=\"twitter:site\" content=\"@masonworld\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Mason\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/\"},\"author\":{\"name\":\"Mark Mason\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#\\\/schema\\\/person\\\/9372eea62aeac9834382c69e9ed9fd90\"},\"headline\":\"What a Duplicate Content Experiment Taught Me About Google and SEO\",\"datePublished\":\"2009-01-25T05:17:20+00:00\",\"dateModified\":\"2026-04-03T13:06:53+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/\"},\"wordCount\":591,\"commentCount\":18,\"publisher\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#organization\"},\"articleSection\":[\"Internet Marketing\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/\",\"url\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/\",\"name\":\"What a Duplicate Content Experiment Taught Me About SEO | LNIM\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#website\"},\"datePublished\":\"2009-01-25T05:17:20+00:00\",\"dateModified\":\"2026-04-03T13:06:53+00:00\",\"description\":\"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/a-duplicate-content-experiment\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.latenightim.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What a Duplicate Content Experiment Taught Me About Google and SEO\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#website\",\"url\":\"https:\\\/\\\/www.latenightim.com\\\/\",\"name\":\"Late Night Internet Marketing Podcast with Mark Mason\",\"description\":\"Building Internet Businesses With Affiliate Marketing One Night At A Time\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.latenightim.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#organization\",\"name\":\"Late Night Internet Marketing Podcast with Mark Mason\",\"url\":\"https:\\\/\\\/www.latenightim.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.latenightim.com\\\/wp-content\\\/uploads\\\/2019\\\/03\\\/IM-Podcast-700sq.jpg\",\"contentUrl\":\"https:\\\/\\\/www.latenightim.com\\\/wp-content\\\/uploads\\\/2019\\\/03\\\/IM-Podcast-700sq.jpg\",\"width\":700,\"height\":700,\"caption\":\"Late Night Internet Marketing Podcast with Mark Mason\"},\"image\":{\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/masonworld\",\"https:\\\/\\\/x.com\\\/masonworld\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.latenightim.com\\\/#\\\/schema\\\/person\\\/9372eea62aeac9834382c69e9ed9fd90\",\"name\":\"Mark Mason\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g\",\"caption\":\"Mark Mason\"},\"sameAs\":[\"http:\\\/\\\/www.latenightim.com\",\"https:\\\/\\\/x.com\\\/masonworld\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What a Duplicate Content Experiment Taught Me About SEO | LNIM","description":"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/","og_locale":"en_US","og_type":"article","og_title":"What a Duplicate Content Experiment Taught Me About SEO | LNIM","og_description":"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.","og_url":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/","og_site_name":"Late Night Internet Marketing Podcast with Mark Mason","article_publisher":"https:\/\/www.facebook.com\/masonworld","article_published_time":"2009-01-25T05:17:20+00:00","article_modified_time":"2026-04-03T13:06:53+00:00","og_image":[{"width":434,"height":208,"url":"https:\/\/www.latenightim.com\/wp-content\/uploads\/2016\/06\/latenightlogo.png","type":"image\/png"}],"author":"Mark Mason","twitter_card":"summary_large_image","twitter_creator":"@masonworld","twitter_site":"@masonworld","twitter_misc":{"Written by":"Mark Mason","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/#article","isPartOf":{"@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/"},"author":{"name":"Mark Mason","@id":"https:\/\/www.latenightim.com\/#\/schema\/person\/9372eea62aeac9834382c69e9ed9fd90"},"headline":"What a Duplicate Content Experiment Taught Me About Google and SEO","datePublished":"2009-01-25T05:17:20+00:00","dateModified":"2026-04-03T13:06:53+00:00","mainEntityOfPage":{"@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/"},"wordCount":591,"commentCount":18,"publisher":{"@id":"https:\/\/www.latenightim.com\/#organization"},"articleSection":["Internet Marketing"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/","url":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/","name":"What a Duplicate Content Experiment Taught Me About SEO | LNIM","isPartOf":{"@id":"https:\/\/www.latenightim.com\/#website"},"datePublished":"2009-01-25T05:17:20+00:00","dateModified":"2026-04-03T13:06:53+00:00","description":"Mark Mason shares results from a 2009 duplicate content SEO experiment and explains what has changed about content originality and Google rankings in 2026.","breadcrumb":{"@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.latenightim.com\/a-duplicate-content-experiment\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.latenightim.com\/"},{"@type":"ListItem","position":2,"name":"What a Duplicate Content Experiment Taught Me About Google and SEO"}]},{"@type":"WebSite","@id":"https:\/\/www.latenightim.com\/#website","url":"https:\/\/www.latenightim.com\/","name":"Late Night Internet Marketing Podcast with Mark Mason","description":"Building Internet Businesses With Affiliate Marketing One Night At A Time","publisher":{"@id":"https:\/\/www.latenightim.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.latenightim.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.latenightim.com\/#organization","name":"Late Night Internet Marketing Podcast with Mark Mason","url":"https:\/\/www.latenightim.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.latenightim.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.latenightim.com\/wp-content\/uploads\/2019\/03\/IM-Podcast-700sq.jpg","contentUrl":"https:\/\/www.latenightim.com\/wp-content\/uploads\/2019\/03\/IM-Podcast-700sq.jpg","width":700,"height":700,"caption":"Late Night Internet Marketing Podcast with Mark Mason"},"image":{"@id":"https:\/\/www.latenightim.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/masonworld","https:\/\/x.com\/masonworld"]},{"@type":"Person","@id":"https:\/\/www.latenightim.com\/#\/schema\/person\/9372eea62aeac9834382c69e9ed9fd90","name":"Mark Mason","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/6b800c425c86cd473783904b834b3d5ac57ba0fe956ffc196a60e026d7269008?s=96&d=mm&r=g","caption":"Mark Mason"},"sameAs":["http:\/\/www.latenightim.com","https:\/\/x.com\/masonworld"]}]}},"_links":{"self":[{"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/posts\/1327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/comments?post=1327"}],"version-history":[{"count":1,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/posts\/1327\/revisions"}],"predecessor-version":[{"id":33022,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/posts\/1327\/revisions\/33022"}],"wp:attachment":[{"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/media?parent=1327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/categories?post=1327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.latenightim.com\/wp-json\/wp\/v2\/tags?post=1327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}