Hey, first time here so I hope I get everything right.
Summary: using 1.1.1.1 / 1.0.0.1 as DNS provider returns incorrect A records for a variety of flixwhatever domains (e.g. flixbus.de, flixtrain.com), which all should resolve to Akamai as flixbus.edgekey.net
Using Google 8.8.8.8 returns a working A record.
Purging the cache entries via the Purge Cache tool has no positive effect.
Connected via the TXL server (Berlin, Germany).
Connection Info
https://cloudflare-dns.com/help/#eyJpc0NmIjoiWWVzIiwiaXNEb3QiOiJObyIsImlzRG9oIjoiTm8iLCJyZXNvbHZlcklwLTEuMS4xLjEiOiJZZXMiLCJyZXNvbHZlcklwLTEuMC4wLjEiOiJZZXMiLCJyZXNvbHZlcklwLTI2MDY6NDcwMDo0NzAwOjoxMTExIjoiWWVzIiwicmVzb2x2ZXJJcC0yNjA2OjQ3MDA6NDcwMDo6MTAwMSI6IlllcyIsImRhdGFjZW50ZXJMb2NhdGlvbiI6IlRYTCIsImlzV2FycCI6Ik5vIiwiaXNwTmFtZSI6IkNsb3VkZmxhcmUiLCJpc3BBc24iOiIxMzMzNSJ9
DIG output:
matt in ~ dig www.flixtrain.de @1.1.1.1
; <<>> DiG 9.10.6 <<>> www.flixtrain.de @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21317
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;www.flixtrain.de. IN A
;; ANSWER SECTION:
www.flixtrain.de. 60 IN CNAME flixbus.edgekey.net.
flixbus.edgekey.net. 21600 IN CNAME e34529.b.akamaiedge.net.
e34529.b.akamaiedge.net. 20 IN A 184.25.239.9
e34529.b.akamaiedge.net. 20 IN A 184.25.239.34
;; Query time: 52 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Mon Jul 26 10:46:35 CEST 2021
;; MSG SIZE rcvd: 144
matt in ~ dig www.flixtrain.de @1.0.0.1
; <<>> DiG 9.10.6 <<>> www.flixtrain.de @1.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59027
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;www.flixtrain.de. IN A
;; ANSWER SECTION:
www.flixtrain.de. 53 IN CNAME flixbus.edgekey.net.
flixbus.edgekey.net. 21593 IN CNAME e34529.b.akamaiedge.net.
e34529.b.akamaiedge.net. 13 IN A 184.25.239.9
e34529.b.akamaiedge.net. 13 IN A 184.25.239.34
;; Query time: 141 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Mon Jul 26 10:46:42 CEST 2021
;; MSG SIZE rcvd: 144
matt in ~ dig www.flixtrain.de @8.8.8.8
; <<>> DiG 9.10.6 <<>> www.flixtrain.de @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 52368
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.flixtrain.de. IN A
;; ANSWER SECTION:
www.flixtrain.de. 42 IN CNAME flixbus.edgekey.net.
flixbus.edgekey.net. 20771 IN CNAME e34529.b.akamaiedge.net.
e34529.b.akamaiedge.net. 19 IN A 2.21.133.224
e34529.b.akamaiedge.net. 19 IN A 2.21.133.243
;; Query time: 66 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Mon Jul 26 10:46:48 CEST 2021
;; MSG SIZE rcvd: 144
matt in ~ dig +short CHAOS TXT id.server @1.1.1.1
"TXL"
matt in ~ dig +short CHAOS TXT id.server @1.0.0.1
"TXL"
DNSViz is here: www.flixtrain.de | DNSViz
I would have thought this might correct itself over time, but after two days it’s still the same.
I don’t know if someone takes a deeper look into these reports… in the meantime I have to stick with 8.8.8.8 or my ISPs crappy resolver.