On ATT fiber residential in Chesterfield (St Louis) MO, I can ping the main family filter DNS server IPv4 but I am not able to ping or use the secondary server IPv4. Is this an ATT routing issue or a cleanbrowsing.org problem?
$ ping 22.214.171.124
PING 126.96.36.199 (188.8.131.52): 56 data bytes
64 bytes from 184.108.40.206: icmp_seq=0 ttl=52 time=128.812 ms
$ ping 220.127.116.11
PING 18.104.22.168 (22.214.171.124): 56 data bytes
— 126.96.36.199 ping statistics —
138 packets transmitted, 0 packets received, 100% packet loss