Cannot reach raw.githubusercontent.com

I am using Cloudflare as my home resolver. My ISP is Rogers in Toronto, Canada. I am having problems to access raw.githubusercontent.com from my home. The site is up - as tested from many international test sites.

Without a VPN, I see the following
Johans-MacBook-Pro:~ vcollerji$ ping raw.githubusercontent.com
ping: cannot resolve raw.githubusercontent.com: Unknown host

By engaging my VPN, it is reachable and
Johans-MacBook-Pro:~ vcollerji$ ping raw.githubusercontent.com
PING github.map.fastly.net (151.101.124.133): 56 data bytes
64 bytes from 151.101.124.133: icmp_seq=0 ttl=61 time=28.736 ms
64 bytes from 151.101.124.133: icmp_seq=1 ttl=61 time=32.536 ms
64 bytes from 151.101.124.133: icmp_seq=2 ttl=61 time=29.622 ms
64 bytes from 151.101.124.133: icmp_seq=3 ttl=61 time=32.090 ms
64 bytes from 151.101.124.133: icmp_seq=4 ttl=61 time=34.764 ms
64 bytes from 151.101.124.133: icmp_seq=5 ttl=61 time=27.288 ms
^C
github.map.fastly.net ping statistics —
6 packets transmitted, 6 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 27.288/30.839/34.764/2.529 ms

Google DNS can resolve this site:
Johans-MacBook-Pro:~ vcollerji$ nslookup raw.githubusercontent.com 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
raw.githubusercontent.com canonical name = github.map.fastly.net.
Name: github.map.fastly.net
Address: 151.101.124.133

But not Cloudflare:
:Johans-MacBook-Pro:~ vcollerji$ nslookup raw.githubusercontent.com 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53

Non-authoritative answer:
Name: github.map.fastly.net
Address: 151.101.64.133
Name: github.map.fastly.net
Address: 151.101.192.133
Name: github.map.fastly.net
Address: 151.101.128.133
Name: github.map.fastly.net
Address: 151.101.0.133

Any insights?

What does this return?

nslookup -class=chaos -type=txt id.server 1.1.1.1
nslookup -type=cname raw.githubusercontent.com 1.1.1.1
nslookup github.map.fastly.net 1.1.1.1

Though, the output you posted actually seem to have returned the addresses

If that is YYZ you should contact support. There appears to be currently some issue with the DNS service in that particular datacentre.

Sandro, thanks for your help. Here are the requested outputs:
Johans-MacBook-Pro:~ vcollerji$ nslookup -class=chaos -type=txt id.server 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53

Non-authoritative answer:
id.server text = “YYZ”

Authoritative answers can be found from:

Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ nslookup -type=cname raw.githubusercontent.com 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53

Non-authoritative answer:
raw.githubusercontent.com canonical name = github.map.fastly.net.

Authoritative answers can be found from:
fastly.net
origin = ns1.fastly.net
mail addr = hostmaster.fastly.com
serial = 2017052201
refresh = 3600
retry = 600
expire = 604800
minimum = 30

Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ nslookup github.map.fastly.net 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53

Non-authoritative answer:
Name: github.map.fastly.net
Address: 151.101.0.133
Name: github.map.fastly.net
Address: 151.101.64.133
Name: github.map.fastly.net
Address: 151.101.128.133
Name: github.map.fastly.net
Address: 151.101.192.133

Thanks. I will try to do that.

I am too stupid to create a support ticket, therefore I am continuing to post here. Every effort to open a ticket asks about my own Cloudflare domain and then takes me to the management screen of that.

Here is my connection information:

Debug Information

Connected to 1.1.1.1 No
Using DNS over HTTPS (DoH) No
Using DNS over TLS (DoT) No
Using DNS over WARP No
AS Name Cloudflare
AS Number 13335
Cloudflare Data Center YYZ

Connectivity to Resolver IP Addresses

1.1.1.1 Yes
1.0.0.1 Yes
2606:4700:4700::1111 Yes
2606:4700:4700::1001 Yes

Here is the other information Cloudflare requests to open a ticket:

Johans-MacBook-Pro:~ vcollerji$ dig raw.githubusercontent.com 770 @1.1.1.1

; <<>> DiG 9.10.6 <<>> raw.githubusercontent.com 770 @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 32805
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;raw.githubusercontent.com. IN A

;; ANSWER SECTION:
raw.githubusercontent.com. 27 IN CNAME github.map.fastly.net.
github.map.fastly.net. 27 IN A 151.101.0.133
github.map.fastly.net. 27 IN A 151.101.64.133
github.map.fastly.net. 27 IN A 151.101.128.133
github.map.fastly.net. 27 IN A 151.101.192.133

;; Query time: 59 msec
;; SERVER: 2606:4700:4700::1111#53(2606:4700:4700::1111)
;; WHEN: Thu Dec 12 20:49:11 EST 2019
;; MSG SIZE rcvd: 178

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 37715
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;770. IN A

;; AUTHORITY SECTION:
. 86400 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019121202 1800 900 604800 86400

;; Query time: 86 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Thu Dec 12 20:49:11 EST 2019
;; MSG SIZE rcvd: 107

Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ dig raw.githubusercontent.com 770 @1.0.0.1

; <<>> DiG 9.10.6 <<>> raw.githubusercontent.com 770 @1.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53555
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;raw.githubusercontent.com. IN A

;; ANSWER SECTION:
raw.githubusercontent.com. 3 IN CNAME github.map.fastly.net.
github.map.fastly.net. 3 IN A 151.101.0.133
github.map.fastly.net. 3 IN A 151.101.64.133
github.map.fastly.net. 3 IN A 151.101.128.133
github.map.fastly.net. 3 IN A 151.101.192.133

;; Query time: 48 msec
;; SERVER: 2606:4700:4700::1111#53(2606:4700:4700::1111)
;; WHEN: Thu Dec 12 20:49:38 EST 2019
;; MSG SIZE rcvd: 178

;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 22518
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;770. IN A

;; AUTHORITY SECTION:
. 86373 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019121202 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Thu Dec 12 20:49:38 EST 2019
;; MSG SIZE rcvd: 107

Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ dig +short CHAOS TXT id.server @1.1.1.1
“YYZ”
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ dig +short CHAOS TXT id.server @1.0.0.1
“YYZ”
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ dig @ns3.Cloudflare.com whoami.Cloudflare.com 41 txt +short
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ dig @ns3.Cloudflare.com whoami.Cloudflare.com 41 txt +short
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 64 hops max, 52 byte packets
1 192.168.99.1 (192.168.99.1) 3.648 ms 2.067 ms 10.431 ms
2 * * *
3 8083-dgw01.mtnk.rmgt.net.rogers.com (67.231.222.33) 10.445 ms 12.098 ms 12.031 ms
4 0-4-0-9-cgw01.mtnk.asr9k.rmgt.net.rogers.com (209.148.233.189) 12.462 ms
3021-cgw01.mtnk.asr9k.rmgt.net.rogers.com (209.148.232.49) 18.665 ms 13.346 ms
5 209.148.235.42 (209.148.235.42) 19.806 ms
209.148.230.2 (209.148.230.2) 15.770 ms
209.148.235.42 (209.148.235.42) 47.615 ms
6 * * *
7 one.one.one.one (1.1.1.1) 18.822 ms 13.887 ms 16.418 ms
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$ traceroute 1.0.0.1
traceroute to 1.0.0.1 (1.0.0.1), 64 hops max, 52 byte packets
1 192.168.99.1 (192.168.99.1) 3.135 ms 3.419 ms 2.080 ms
2 * * *
3 8083-dgw01.mtnk.rmgt.net.rogers.com (67.231.222.33) 15.269 ms 13.652 ms 8.538 ms
4 0-4-0-9-cgw01.mtnk.asr9k.rmgt.net.rogers.com (209.148.233.189) 10.215 ms
3021-cgw01.mtnk.asr9k.rmgt.net.rogers.com (209.148.232.49) 9.840 ms 10.875 ms
5 209.148.230.2 (209.148.230.2) 11.960 ms 13.889 ms
209.148.235.42 (209.148.235.42) 14.852 ms
6 * * *
7 one.one.one.one (1.0.0.1) 12.912 ms 16.170 ms 23.256 ms
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$
Johans-MacBook-Pro:~ vcollerji$

Apologies for your inconvenience. This should be fixed now. Are you still seeing this problem?

1 Like

Alright, so yes, “YYZ” again :slight_smile:

You actually can resolve raw.githubusercontent.com but there might be issues with the hostname it is pointing to. However in your particular case your lookup would suggest even github.map.fastly.net works, as you do get IP addresses. So raw.githubusercontent.com should overall work.

As for a support ticket, the support system is not really designed for the DNS service but rather only for their core service. Dropping them an email at [email protected] should work.

@irtefa, this particular lookup should actually even work, but it still seems as YYZ has had some issues for a while. Then, there is also that other thread :slight_smile:

irtefa, it works! Thank you very much!

1 Like

Sandro

Thank you so much for your help and advice! You are a star and I really appreciate you having on my side.

All the best!

1 Like