1.1.1.1 nslookup SERVFAIL with developer.apple.com and other subdomains

Many times since yesterday I have problems accessing Apple Music or other apple.com subdomains using 1.1.1.1 or 1.0.0.1 DNS servers

nslookup developer.apple.com
;; Got SERVFAIL reply from 1.1.1.1, trying next server
;; Got SERVFAIL reply from 1.0.0.1, trying next server
;; connection timed out; no servers could be reached

nslookup js-cdn.music.apple.com
;; Got SERVFAIL reply from 1.1.1.1, trying next server
;; Got SERVFAIL reply from 1.0.0.1, trying next server
;; connection timed out; no servers could be reached

Using DNS from my provider (Orange in France) I have no problems :

nslookup developer.apple.com
Server: 10.0.0.1
Address: 10.0.0.1#53
Non-authoritative answer:
developer.apple.com canonical name = developer-cdn.apple.com.akadns.net.
developer-cdn.apple.com.akadns.net canonical name = world-gen.g.aaplimg.com.
Name: world-gen.g.aaplimg.com
Address: 17.253.113.202
Name: world-gen.g.aaplimg.com
Address: 17.253.109.201

nslookup js-cdn.music.apple.com
Server: 10.0.0.1
Address: 10.0.0.1#53
Non-authoritative answer:
js-cdn.music.apple.com canonical name = js-cdn-music-lb.itunes-apple.com.akadns.net.
js-cdn-music-lb.itunes-apple.com.akadns.net canonical name = authorize.music.apple.com.edgekey.net.
authorize.music.apple.com.edgekey.net canonical name = e8143.dscb.akamaiedge.net.
Name: e8143.dscb.akamaiedge.net
Address: 104.84.71.237

When DNS 1.1.1.1 works, it sometimes returns a different address than the one from my provider DNS :

nslookup amp-api.music.apple.com
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
amp-api.music.apple.com canonical name = amp-api-music-lb.itunes-apple.com.akadns.net.
amp-api-music-lb.itunes-apple.com.akadns.net canonical name = amp-api.music.apple.com.edgekey.net.
amp-api.music.apple.com.edgekey.net canonical name = e3925.dscg.akamaiedge.net.
Name: e3925.dscg.akamaiedge.net
Address: 23.57.81.97

nslookup amp-api.music.apple.com
Server: 10.0.0.1
Address: 10.0.0.1#53
Non-authoritative answer:
amp-api.music.apple.com canonical name = amp-api-music-lb.itunes-apple.com.akadns.net.
amp-api-music-lb.itunes-apple.com.akadns.net canonical name = amp-api.music.apple.com.edgekey.net.
amp-api.music.apple.com.edgekey.net canonical name = e3925.dscg.akamaiedge.net.
Name: e3925.dscg.akamaiedge.net
Address: 92.123.117.141

I am having a similar problem but with different websites. It seems something is broken in Cloudflare’s public DNS servers for the past few days and possibly weeks.

Hi, can you go to https://1.1.1.1/help and post results here? Is it still not resolving for you?

@addverma can you share with which websites are you having problems with?

It is now resolving without any problem. I would be happy to know what was causing the problem last week.

https://1.1.1.1/help#eyJpc0NmIjoiWWVzIiwiaXNEb3QiOiJObyIsImlzRG9oIjoiTm8iLCJyZXNvbHZlcklwLTEuMS4xLjEiOiJZZXMiLCJyZXNvbHZlcklwLTEuMC4wLjEiOiJZZXMiLCJyZXNvbHZlcklwLTI2MDY6NDcwMDo0NzAwOjoxMTExIjoiTm8iLCJyZXNvbHZlcklwLTI2MDY6NDcwMDo0NzAwOjoxMDAxIjoiTm8iLCJkYXRhY2VudGVyTG9jYXRpb24iOiJDREciLCJpc1dhcnAiOiJObyIsImlzcE5hbWUiOiJDbG91ZGZsYXJlIiwiaXNwQXNuIjoiMTMzMzUifQ==