I have a WordPress hosted on WPMUdev that lives under example.com, and trying to move this WordPress installation to sub.example.com and set my react app on example.com.

So I tried to move my website from example.com to sub.example.com so my WordPress can live in sub.example.com and my react app in example.com. WordPress is hosted on WPMU dev and React app on Vercel.

I've been able to set my React app on example.com in Vercel dashboard after setting up my DNS record accordingly ( DNS records are set up in my domain name provider ) but I'm struggling to set my WordPress on sub.example.com.

I've tried to set a CNAME records with sub.example.com and A record with IPv4 WPMU servers IP but this does not work. Domain name provider says I just need a CNAME record for subdomain but this also does not work. On domain panels in WPMUDEV I've added sub.example.com but it always fails on DNS Check. I also tried a few combinations of A/CNAME records but also fails. What am I missing?

  • When you say "fails on DNS Check," what does that mean? What checks is it performing? What is the full error message you get? Commented Sep 23, 2022 at 17:07
  • thanks for your reply. @StephenOstermiller under the DNS Status column I have a red cross and when I hover on it it just says " Wrong DNS.Please check our DNS docs and review your setup.It can take 24-48 hours for DNS to fully propagate in some cases." Also I don't know what checks it does, WPMU UI does not say, and you can't really do much
    – Francis
    Commented Sep 23, 2022 at 17:11
  • The weird parts is that when I access on my browser sub.example.com it does not work but somehow my React app which communicate with WordPress via Rest API do work with sub.example.com
    – Francis
    Commented Sep 23, 2022 at 17:16
  • Okay I made some progress, I've added a CNAME record with a URL provided by WPMU Dev (domain.tempurl.host) and now the DNS Check on WPMU Dashboard I successful and I'm able to set sub.example.com as my primary URL, but when I hit this URL in my browser it redirects me to example.com (react app ) instead of my WordPress
    – Francis
    Commented Sep 23, 2022 at 17:40
  • Did you update the WP_HOME and WP_SITEURL variables in your WordPress config? Commented Sep 23, 2022 at 17:47

1 Answer 1


turns out you were right, with the correct site_url and only the CNAME from WPMUDev it works, thanks for your help

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