domain=cache.nixos.org
> dig -t A cache.nixos.org
    
    ; <<>> DiG 9.20.18 <<>> -t A cache.nixos.org
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5070
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1
    
    ;; OPT PSEUDOSECTION:
    ; EDNS: version: 0, flags:; udp: 1232
    ;; QUESTION SECTION:
    ;cache.nixos.org.		IN	A
    
    ;; ANSWER SECTION:
    cache.nixos.org.	3011	IN	CNAME	dualstack.n.sni.global.fastly.net.
    dualstack.n.sni.global.fastly.net. 9 IN	A	151.101.193.91
    dualstack.n.sni.global.fastly.net. 9 IN	A	151.101.65.91
    dualstack.n.sni.global.fastly.net. 9 IN	A	151.101.1.91
    dualstack.n.sni.global.fastly.net. 9 IN	A	151.101.129.91
    
    ;; Query time: 4 msec
    ;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
    ;; WHEN: Fri Mar 13 02:28:33 +06 2026
    ;; MSG SIZE  rcvd: 155
    
Exit: 0


> ping -c1 cache.nixos.org
    PING cache.nixos.org (2a04:4e42:200::347) 56 data bytes
    64 bytes from 2a04:4e42:200::347: icmp_seq=1 ttl=55 time=7.86 ms
    
    --- cache.nixos.org ping statistics ---
    1 packets transmitted, 1 received, 0% packet loss, time 0ms
    rtt min/avg/max/mdev = 7.863/7.863/7.863/0.000 ms
Exit: 0


> ping -4 -c1 cache.nixos.org
    PING cache.nixos.org (151.101.65.91) 56(84) bytes of data.
    64 bytes from 151.101.65.91: icmp_seq=1 ttl=58 time=47.7 ms
    
    --- cache.nixos.org ping statistics ---
    1 packets transmitted, 1 received, 0% packet loss, time 0ms
    rtt min/avg/max/mdev = 47.726/47.726/47.726/0.000 ms
Exit: 0


> ping -6 -c1 cache.nixos.org
    PING cache.nixos.org (2a04:4e42:200::347) 56 data bytes
    64 bytes from 2a04:4e42:200::347: icmp_seq=1 ttl=55 time=7.77 ms
    
    --- cache.nixos.org ping statistics ---
    1 packets transmitted, 1 received, 0% packet loss, time 0ms
    rtt min/avg/max/mdev = 7.765/7.765/7.765/0.000 ms
Exit: 0


> mtr -c 20 -w -r cache.nixos.org