Yoast SEO
Conflict between W3TC and Yoast SEO (6 posts)

  1. Boris
    Posted 3 years ago #

    I've used Yoast SEO with W3 Total Cache on numerous websites, and have never had any problems. However, I am working on a new website and upgraded the Yoast plugin to the latest version ( and when I now activate W3TC, Minify doesn't work. The error message in the source code says: DONOTMINIFY constant is defined

    After initial troubleshooting was fruitless, I googled and came across others: LINK and LINK, which led me to the Yoast SEO. And sure enough, when I disable Yoast, Minify works again. I've deleted the latest Yoast version and used version 1.2.8 instead, Minify works fine.

    Has Yoast responded to these issues already? I haven't been able to find a reaction or a fix other than the workaround above.

    I'm using the latest WP (3.5) and W3TC ( versions.


  2. Frederick Townes
    Posted 3 years ago #

    @yoast would have to comment on this issue.

  3. Gautam Thapar
    Posted 3 years ago #

    facing the same problem!!

    Minify not working and cdn not working when using w3tc / wp super cache with wordpress seo. As soon as I deactivate wordpress seo everything works.

    WordPress SEO version 1.4.9
    W3TC version

  4. sheng92
    Posted 3 years ago #

    Same thing happens with Quick Cache. Downgrading back to 1.4.7 (http://downloads.wordpress.org/plugin/wordpress-seo.1.4.7.zip) until this issue is resolved works for me.

  5. Gautam Thapar
    Posted 3 years ago #

    I downgraded too. Yup, 1.4.7 is working fine at the moment.

  6. Gautam Thapar
    Posted 3 years ago #

    The latest version 1.4.10 is working good, bug fixed! :)

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