R2 bucket with connected domain cannot be dns resolved

I’ve created a bucket and add a custom domain. The custom domain is listed as active. Despite that some hours after I still can’t resolve the custom domain itself, even on cloudflare dns servers (

If it isn’t even on cloudflare how can it be accessible? Also… as it isn’t, what may be wrong?


What’s the Custom Domain/exact url it happens on?

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$ nslookup r2.mydomain.com

** server can’t find r2.mydomain.com: NXDOMAIN