# 'Duplicate pages without canonical' error

**URL:** <https://community.hubspot.com/t/duplicate-pages-without-canonical-error/84860>\
**Category:** Blog, Website & Page Publishing\
**Tags:** enterprise\
**Created:** [July 7, 2023, 1:13am UTC](https://community.hubspot.com/t/duplicate-pages-without-canonical-error/84860 "2023-07-07T01:13:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JCodrington](https://avatars.discourse-cdn.com/v4/letter/j/898d66/32.png) [@JCodrington](https://community.hubspot.com/u/JCodrington)\
**Post date:** [July 7, 2023, 1:13am UTC](https://community.hubspot.com/t/duplicate-pages-without-canonical-error/84860/1 "2023-07-07T01:13:25Z")

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Hi,

I am getting an errors in Ahrefs for ‘Duplicate pages without canonical’ - with pages like _news-articles/tag/news/page/8_ and author pages showing up.

Could someone explain how to fix this?

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<div class="post-metadata">

**Author:** ![karstenkoehler](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/karstenkoehler/32/68554_2.png) [@karstenkoehler](https://community.hubspot.com/u/karstenkoehler)\
**Post date:** [July 7, 2023, 6:21am UTC](https://community.hubspot.com/t/duplicate-pages-without-canonical-error/84860/2 "2023-07-07T06:21:21Z")

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Hi @JCodrington,

HubSpot has a step-by-step instruction in the knowledgebase here: [Set canonical URLs for duplicate content](https://knowledge.hubspot.com/seo/set-canonical-urls-for-duplicate-content)

Best regards!

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<div class="post-metadata">

**Author:** ![JCodrington](https://avatars.discourse-cdn.com/v4/letter/j/898d66/32.png) [@JCodrington](https://community.hubspot.com/u/JCodrington)\
**Post date:** [July 9, 2023, 10:31pm UTC](https://community.hubspot.com/t/duplicate-pages-without-canonical-error/84860/3 "2023-07-09T22:31:45Z")

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Thanks for your reply @karstenkoehler - however I have done all that! I mean that just the author, tag and subsequential blog listing pages are showing up in Ahrefs as ‘Duplicate pages without canonical’ - see attached image of examples… Unless I put something into the robots txt file (which I’m not sure is a good idea) then is there anything I can do for this? Or do I simply just ignore it 😅

 ![JCodrington_1-1688941833489.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/f/9/f9071169e40941edd04ff0a6a245680586ff243c.png)