[{"data":1,"prerenderedAt":201},["ShallowReactive",2],{"blog-post-canonical-tags-guide-en":3},{"id":4,"title":5,"body":6,"description":183,"extension":184,"meta":185,"navigation":196,"path":197,"seo":198,"stem":199,"__hash__":200},"blog\u002Fblog\u002Fen\u002Fcanonical-tags-guide.md","Canonical Tags: How to Avoid Duplicate Content Problems",{"type":7,"value":8,"toc":174},"minimark",[9,13,23,28,31,76,79,83,105,109,112,116,124,128,135,141,147,151,158,161,170],[10,11,5],"h1",{"id":12},"canonical-tags-how-to-avoid-duplicate-content-problems",[14,15,16,17,22],"p",{},"Duplicate content confuses search engines. When the same content exists at multiple URLs, Google must guess which version to rank. A canonical tag tells Google: \"This is the primary version. Consolidate all signals here.\" Use our ",[18,19,21],"a",{"href":20},"\u002Ftools\u002Fcanonical-tag-generator","Canonical Tag Generator"," to create correct canonical links.",[24,25,27],"h2",{"id":26},"what-is-a-canonical-tag","What Is a Canonical Tag?",[14,29,30],{},"A canonical tag is a link element in the HTML head:",[32,33,38],"pre",{"className":34,"code":35,"language":36,"meta":37,"style":37},"language-html shiki shiki-themes github-light github-dark","\u003Clink rel=\"canonical\" href=\"https:\u002F\u002Fexample.com\u002Foriginal-page\" \u002F>\n","html","",[39,40,41],"code",{"__ignoreMap":37},[42,43,46,50,54,58,61,65,68,70,73],"span",{"class":44,"line":45},"line",1,[42,47,49],{"class":48},"sVt8B","\u003C",[42,51,53],{"class":52},"s9eBZ","link",[42,55,57],{"class":56},"sScJk"," rel",[42,59,60],{"class":48},"=",[42,62,64],{"class":63},"sZZnC","\"canonical\"",[42,66,67],{"class":56}," href",[42,69,60],{"class":48},[42,71,72],{"class":63},"\"https:\u002F\u002Fexample.com\u002Foriginal-page\"",[42,74,75],{"class":48}," \u002F>\n",[14,77,78],{},"It consolidates ranking signals and prevents duplicate content issues without redirecting users.",[24,80,82],{"id":81},"when-to-use-canonical-tags","When to Use Canonical Tags",[84,85,86,90,93,96,99,102],"ul",{},[87,88,89],"li",{},"Product pages with multiple URL variants (sort, filter, color)",[87,91,92],{},"Pages accessible via both HTTP and HTTPS",[87,94,95],{},"Pages with and without trailing slashes",[87,97,98],{},"Syndicated content published on other sites",[87,100,101],{},"AMP page versions pointing to the standard page",[87,103,104],{},"Print-friendly or PDF versions of pages",[24,106,108],{"id":107},"canonical-vs-301-redirect","Canonical vs 301 Redirect",[14,110,111],{},"Canonical is a soft signal. Search engines may ignore it. A 301 redirect is a hard directive. Use 301s when the old URL should never be accessed. Use canonical when both URLs need to remain accessible but one is preferred.",[24,113,115],{"id":114},"canonical-and-hreflang","Canonical and Hreflang",[14,117,118,119,123],{},"Canonical and hreflang must agree. If your canonical points to the English page but your hreflang says the page is Chinese, you have a conflict. Use our ",[18,120,122],{"href":121},"\u002Ftools\u002Fcanonical-hreflang-conflict-checker","Canonical + Hreflang Conflict Checker"," to detect these issues.",[24,125,127],{"id":126},"common-mistakes","Common Mistakes",[14,129,130,134],{},[131,132,133],"strong",{},"Self-referencing canonical",": Always include a canonical tag on the canonical page itself.",[14,136,137,140],{},[131,138,139],{},"Canonical chains",": Page A canonicals to B, B canonicals to C. Always point directly to the final canonical URL.",[14,142,143,146],{},[131,144,145],{},"Canonicalizing to a redirect",": The canonical target should return a 200 status, not a redirect.",[24,148,150],{"id":149},"key-takeaways","Key Takeaways",[14,152,153,154,157],{},"Use canonical tags to consolidate duplicate pages. Always include self-referencing canonicals. Avoid canonical chains. Check hreflang compatibility with our ",[18,155,156],{"href":121},"Conflict Checker",".",[159,160],"hr",{},[14,162,163],{},[164,165,166,167,157],"em",{},"Generate canonical tags with our ",[18,168,169],{"href":20},"free Canonical Generator",[171,172,173],"style",{},"html pre.shiki code .sVt8B, html code.shiki .sVt8B{--shiki-default:#24292E;--shiki-dark:#E1E4E8}html pre.shiki code .s9eBZ, html code.shiki .s9eBZ{--shiki-default:#22863A;--shiki-dark:#85E89D}html pre.shiki code .sScJk, html code.shiki .sScJk{--shiki-default:#6F42C1;--shiki-dark:#B392F0}html pre.shiki code .sZZnC, html code.shiki .sZZnC{--shiki-default:#032F62;--shiki-dark:#9ECBFF}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":37,"searchDepth":175,"depth":175,"links":176},2,[177,178,179,180,181,182],{"id":26,"depth":175,"text":27},{"id":81,"depth":175,"text":82},{"id":107,"depth":175,"text":108},{"id":114,"depth":175,"text":115},{"id":126,"depth":175,"text":127},{"id":149,"depth":175,"text":150},"A practical guide to canonical tags. Learn when to use them, how to set them correctly, and how to check for canonical-hreflang conflicts.","md",{"date":186,"category":187,"tags":188,"relatedTools":192,"image":195},"2026-04-28","technical-seo",[189,190,191],"canonical","duplicate content","rel=canonical",[193,194],"canonical-tag-generator","canonical-hreflang-conflict-checker","\u002Fsite-icon.png",true,"\u002Fblog\u002Fen\u002Fcanonical-tags-guide",{"title":5,"description":183},"blog\u002Fen\u002Fcanonical-tags-guide","4m4CSIl5EEtbeY8z5IP3JDKmrnsc58BITG6kopmFfVw",1780480145328]