DNS_PROBE_FINISHED_NXDOMAIN for a long subdomain

[philippe15]

Hi,

Cloudflare DNS does not work with my subdomain:
development.everyday-inspirational-quotes.com

but works with domain:

everyday-inspirational-quotes.com

the A record were setup as follows:

dig command does respond with an answer

;; ANSWER SECTION:
development.everyday-inspirational-quotes.com. 300 IN A 172.67.174.228
development.everyday-inspirational-quotes.com. 300 IN A 104.21.40.35

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)

[i40west]

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).

[philippe15]

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

https://www.ssllabs.com/ssltest/analyze.html?d=development.everyday-inspirational-quotes.com

Still getting the same DNS_PROBE_FINISHED_NXDOMAIN error though

[i40west]

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.

[epic.network]

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

[philippe15]

Omg it finally worked, thank you so much !!