I need help identifying a problem when using Cloudflare resolver 1.1.1.1
This is an intermittent problem and only happens in a percentage of queries.
First, I start getting the error: Extended DNS Error Code 6 - DNSSEC Bogus
So after some time, I start getting the error: Extended DNS Error Code 16 - Censored
After a few seconds, DNS is resolved again, but the errors happen again after a while
One of the domains I get this error is marketplace.ifood.com.br
These errors only occur when I use Cloudflare resolver
Below are some errors returned when I use the “dig marketplace.ifood.com.br” command
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38885
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 00 (“…”)
; OPT=15: 00 06 (“…”)
;; QUESTION SECTION:
;marketplace.ifood.com.br. IN A
;; Query time: 20 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Mon Jul 05 21:04:07 -03 2021
;; MSG SIZE rcvd: 65
; <<>> DiG 9.16.1-Ubuntu <<>> marketplace.ifood.com.br @1.1.1.1 +fail
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 22349
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 16 (“…”)
;; QUESTION SECTION:
;marketplace.ifood.com.br. IN A
;; Query time: 0 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Mon Jul 05 21:01:10 -03 2021
;; MSG SIZE rcvd: 59
; <<>> DiG 9.16.1-Ubuntu <<>> marketplace.ifood.com.br @1.1.1.1 +fail
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 28412
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; OPT=15: 00 00 (“…”)
;; QUESTION SECTION:
;marketplace.ifood.com.br. IN A