1.1.1.1 can't resolve www.zegjijhetmaar.nl


#1

Some domains can’t be resolved with 1.1.1.1, google dns works fine.

$ dig www.zegjijhetmaar.nl @1.1.1.1

; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.zegjijhetmaar.nl @1.1.1.1
;; global options: +cmd
;; connection timed out; no servers could be reached

$ dig www.zegjijhetmaar.nl @1.0.0.1

; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.zegjijhetmaar.nl @1.0.0.1
;; global options: +cmd
;; connection timed out; no servers could be reached

$ dig www.zegjijhetmaar.nl @8.8.8.8

; <<>> DiG 9.10.3-P4-Ubuntu <<>> www.zegjijhetmaar.nl @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 9767
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.zegjijhetmaar.nl.		IN	A

;; ANSWER SECTION:
www.zegjijhetmaar.nl.	28	IN	CNAME	www.dlb.zegjijhetmaar.nl.
www.dlb.zegjijhetmaar.nl. 29	IN	A	84.241.186.177

;; Query time: 21 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Wed May 02 17:01:13 CEST 2018
;; MSG SIZE  rcvd: 87

$ dig +short CHAOS TXT id.server @1.1.1.1
"ams01"

$ dig +short CHAOS TXT id.server @1.0.0.1
"ams01"

#2

Hmmmm… It appears to resolve for me both against my local POP (DFW) and when I test against the AMS01 POP as well.

So it appears that the nameservers for dlb.zegjijhetmaar.nl are ns1.topicuszorg.nl and ns0.topicuszorg.nl. When we get ns01 at the NS to try it has an IPv6 address which is incorrect/isn’t listening which causes the lookup to fail.

I’ll log a ticket internally to see if we can ignore the IPv6 address for this zone and/or contact the zone owner and ask them to fix their DNS.


#3

Thanks for the reply, I’ve contacted the support desk for the website and it seems they fixed the DNS, as I can resolve it now just fine using Cloudflare.


#4

Thanks for the update, my team also made a manual change for the zone so if they add the broken address back for some reason it should continue to work.