https://doh.pub/dns-query?name=baidu.com
https://dns.google/query?name=baidu.com
公共DNS：
223.5.5.5
8.8.8.8
119.29.29.29
180.76.76.76
参考：
https://help.aliyun.com/zh/dns/httpdns-dns-over-https-doh
https://sdns.360.net/dnsPublic.html#course
待完善
https://doh.baidu.com/dns-query?name=baidu.com
https://180.76.76.76/dns-query（百度公共 DNS 节点 IP）
https://dns.alidns.com/dns-query?name=baidu.com
https://223.5.5.5/dns-query
https://223.6.6.6/dns-query
https://doh.360.cn/dns-query?name=baidu.com