My browser and other sources DNS_PROBE_FINISHED_NXDOMAIN for my domain

[burakbozyigit]

Hey there,

I have a website hosted on GitHub pages and has a simple MX record.
I’ve noticed that whenever I’d like to reach the page, it returns DNS_PROBE_FINISHED_NXDOMAIN on my laptop and also isup.me shows that my site is down.

I can also wasn’t able to query my NS records outside of Cloudflare NS. All records seems to intact in the dashboard but still doesn’t work and I don’t know where to look.

dig ns domain.com @8.8.8.8

; <<>> DiG 9.10.6 <<>> ns domain.com @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21511
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;domain.com.		IN	NS

;; Query time: 53 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Mar 25 15:23:52 EET 2024
;; MSG SIZE  rcvd: 72

Thank you for your help

[Laudian]

What is your domain?

[burakbozyigit]

Hey @Laudian

Thank you for the answer.
My domain is ertobametal.com
After spending some time diagnosing and creating this ticket I’ve also enabled DNSSEC in the progress and briefly it worked. It now says ERR_SSL_VERSION_OR_CIPHER_MISMATCH.

[Laudian]

Is Universal SSL enabled for your account when you look here?
https://dash.cloudflare.com/?to=/:account/:zone/ssl-tls/edtge-certificates

If yes, what status do your Edge Certificates have?

[burakbozyigit]

Universal SSL is enabled and Cloudflare managed Let’s Encrypt edge certs are there.
However it says Pending Validation with "Cloudflare will validate the certificate on your behalf. No action is required.` banner.

*.ertobametal.com, ertobametal.com Universal Pending Validation(TXT) (Managed)

[Laudian]

Please try turning it off, then wait 2-3 minutes before turning it on again.

[burakbozyigit]

I’ve disabled then enabled Universal SSL and my certs are now issued and site working as expected. Thank you so much for you patient support.