nic.cz https://odvr.nic.cz/dns-query DOH test
193.17.47.1
185.43.135.1
2001:148f:ffff::1
2001:148f:fffe::1
cloudflare https://cloudflare-dns.com/dns-query DOH test
1.1.1.1
1.0.0.1
2606:4700:4700::1111
2606:4700:4700::1001
google https://dns.google/dns-query DOH test
8.8.8.8
8.8.4.4
2001:4860:4860::8888
2001:4860:4860::8844