I’ve been using Cloudflare for my main DNS for some time. After recent upgrade of Firefox enabled DoH, I have one site that is intermittently failing to resolve through the browser. I’ll get a Server not Found, click retry, and 75% of the time it will work from there. I’ve disabled DoH in my browser and that seems to have taken care of it - wanted to report the issue and provide what info I could.
I have no idea if this would be related, but in case it’s relevant to the DoH queries - I had an issue when I first started using Cloudflare DNS with this same site not being found at all: Previous Ticket
dig www.funfile.org 883 @1.1.1.1
; <<>> DiG 9.11.14-RedHat-9.11.14-2.fc31 <<>> www.funfile.org 883 @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28241
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;www.funfile.org. IN A
;; ANSWER SECTION:
www.funfile.org. 1450 IN CNAME www.geo.funfile.org.
www.geo.funfile.org. 495 IN A 167.114.66.114
;; Query time: 6 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 14 00:19:39 PDT 2020
;; MSG SIZE rcvd: 82
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 55343
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;883. IN A
;; AUTHORITY SECTION:
. 7995 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020031400 1800 900 604800 86400
;; Query time: 7 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 14 00:19:39 PDT 2020
;; MSG SIZE rcvd: 107
dig www.funfile.org 883 @1.0.0.1
; <<>> DiG 9.11.14-RedHat-9.11.14-2.fc31 <<>> www.funfile.org 883 @1.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12250
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;www.funfile.org. IN A
;; ANSWER SECTION:
www.funfile.org. 1439 IN CNAME www.geo.funfile.org.
www.geo.funfile.org. 484 IN A 167.114.66.114
;; Query time: 6 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 14 00:19:50 PDT 2020
;; MSG SIZE rcvd: 82
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 45286
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;883. IN A
;; AUTHORITY SECTION:
. 6041 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020031400 1800 900 604800 86400
;; Query time: 5 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Sat Mar 14 00:19:50 PDT 2020
;; MSG SIZE rcvd: 107
dig www.funfile.org 883 @8.8.8.8
; <<>> DiG 9.11.14-RedHat-9.11.14-2.fc31 <<>> www.funfile.org 883 @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34810
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;www.funfile.org. IN A
;; ANSWER SECTION:
www.funfile.org. 1427 IN CNAME www.geo.funfile.org.
www.geo.funfile.org. 472 IN A 167.114.66.114
;; Query time: 8 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 14 00:20:02 PDT 2020
;; MSG SIZE rcvd: 82
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 59323
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;883. IN A
;; AUTHORITY SECTION:
. 86393 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2020031400 1800 900 604800 86400
;; Query time: 6 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sat Mar 14 00:20:02 PDT 2020
;; MSG SIZE rcvd: 107
dig +short CHAOS TXT id.server @1.1.1.1
“LAX”
dig +short CHAOS TXT id.server @1.0.0.1
“LAX”
curl -H ‘accept: application/dns-json’ ‘https://cloudflare-dns.com/dns-query?name=www.funfile.org&type=AAAA’
{“Status”: 0,“TC”: false,“RD”: true, “RA”: true, “AD”: true,“CD”: false,“Question”:[{“name”: “cloudflare.com.”, “type”: 28}],“Answer”:[{“name”: “cloudflare.com.”, “type”: 28, “TTL”: 165, “data”: “2606:4700::6811:af55”},{“name”: “cloudflare.com.”, “type”: 28, “TTL”: 165, “data”: “2606:4700::6811:b055”}]}{“Status”: 0,“TC”: false,“RD”: true, “RA”: true, “AD”: true,“CD”: false,“Question”:[{“name”: “www.funfile.org.”, “type”: 28}],“Answer”:[{“name”: “www.funfile.org.”, “type”: 5, “TTL”: 1302, “data”: “www.geo.funfile.org.”},{“name”: “www.geo.funfile.org.”, “type”: 5, “TTL”: 347, “data”: “pool.funfile.org.”}],“Authority”:[{“name”: “funfile.org.”, “type”: 6, “TTL”: 7200, “data”: “ns1.funfile.org. postmaster.funfile.org. 2020031204 10800 3600 604800 7200”}]}