DNS_PROBE_FINISHED_NXDOMAIN for a long subdomain


Cloudflare DNS does not work with my subdomain:

but works with domain:


the A record were setup as follows:

dig command does respond with an answer

development.everyday-inspirational-quotes.com. 300 IN A
development.everyday-inspirational-quotes.com. 300 IN A

but whatsmydns.net lookup fails

and obviously navigating to the site using url fails with the DNS_PROBE_FINISHED_NXDOMAIN

I have configured my domain registrar to point only to Cloudflare name servers but no luck so far.

could it be that the subdomain is too long for Cloudflare ? (it did previously work on digitalocean dns until I switched)

development.everyday-inspirational-quotes.com on HTTP is redirecting to www.development.everyday-inspirational-quotes.com, which doesn’t exist.

On HTTPS it’s returning a 521 error, which means the origin server is unreachable (perhaps not answering on port 443).

1 Like

Hi, thanks for reply

Fixed the https on my server but this wasn`t the issue

I am using Let`s Encrypt for ssl and it does not complain


Still getting the same DNS_PROBE_FINISHED_NXDOMAIN error though

As I said, your server is redirecting to www.development.everyday-inspirational-quotes.com, with the www prefix, and that doesn’t exist. That’s the failed lookup.


It is worth noting that even if that name did exist, it would encounter a subdomain too deep issue with Universal SSL.

Omg it finally worked, thank you so much !!

1 Like

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.