Cloudflare Public DNS Resolver service may be down

Porlam

Cloudflare Public DNS Resolver(1.1.1.1) sometime returns SERVFAIL error.

; <<>> DiG 9.18.12-0ubuntu0.22.04.3-Ubuntu <<>> google.com @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 28423
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; EDE: 10 (RRSIGs Missing): (failed to verify DS com.)
;; QUESTION SECTION:
;google.com.                    IN      A

;; Query time: 15 msec
;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
;; WHEN: Wed Oct 04 17:55:42 JST 2023
;; MSG SIZE  rcvd: 69

allnetstore

Check again

MattBGP

Had the same issue today

MattBGP

Apparently https://www.cloudflarestatus.com/incidents/j3h00yhjyw6p

gdhnoc

Its always a batter idea to use both Cloudflare and Google DNS together.

emgh

Public DNS is meant to be distributed

No reason to rely soley on 1.1.1.1 if you need 100 % avaliability

I often pair Cloudflare with Quad9

tentor

@gdhnoc said: Its always a batter idea to use both Cloudflare and Google DNS together.

I think the best idea is to have local caching recursor. If latency matters, just use it as forwarder to Cloudflare, Google, Quad9 etc and cache the responses.