sdns servers recommend

server_names = ["dct-nl","dct-ru","deffer-dns.au","dns.b33.network-dnscrypt","dns.ryan-palmer","dns.sb","dnscrypt.pl","dnscrypt.pl-guardian","dnscrypt.uk-ipv4","fluffycat-fr-01","fluffycat-fr-02","libredns","libredns-noads","plan9dns-fl","plan9dns-mx","plan9dns-nj","sby-limotelu","scaleway-ams","scaleway-fr","sfw.scaleway-fr","techsaviours.org-dnscrypt","v.dnscrypt.uk-ipv4"]

DoH(One of the ways to combat DNS pollution)

https://coe01.dnscry.pt/dns-query

https://cvt01.dnscry.pt/dns-query

https://dns.aa.net.uk/dns-query

https://dns.artikel10.org/dns-query

https://dns.blokada.org/dns-query

https://dns.brahma.world/dns-query

https://dns.digitale-gesellschaft.ch/dns-query

https://dns.njal.la/dns-query

https://dnspub.restena.lu/dns-query

https://doh.applied-privacy.net/query

https://doh.lacontrevoie.fr/dns-query

https://eu1.dns.lavate.ch/dns-query

https://fra01.dnscry.pt/dns-query

https://geg01.dnscry.pt/dns-query

https://ibuki.cgnat.net/dns-query

https://lax01.dnscry.pt/dns-query

https://lon01.dnscry.pt/dns-query

https://mia01.dnscry.pt/dns-query

https://ns1.qquack.org/dns-query

https://ns.data.haus/dns-query

https://ord01.dnscry.pt/dns-query

https://phx01.dnscry.pt/dns-query

https://rdu01.dnscry.pt/dns-query

https://slc01.dnscry.pt/dns-query

https://sof01.dnscry.pt/dns-query

https://sto01.dnscry.pt/dns-query

https://tll01.dnscry.pt/dns-query

https://tpa01.dnscry.pt/dns-query

https://trf01.dnscry.pt/dns-query

https://waw02.dnscry.pt/dns-query

https://yarp.lefolgoc.net/dns-query