More public resolvers

README.md

@@ -192,7 +192,8 @@ python3-pycurl` will install everything you need.
 
 ## Public servers
 
-(Managed by non-profit organisations.)
+(Managed by non-profit organisations. I may trim this list in the
+future, to remove servers that do not validate with DNSSEC.)
 
 ### DoH
 
@@ -209,6 +210,10 @@ python3-pycurl` will install everything you need.
 * `https://doh.libredns.gr/dns-query`
   ([Documentation](https://libredns.gr/); Also,
   `https://doh.libredns.gr/ads` is a lying resolver, blocking ads and trackers)
+* `https://dns.switch.ch/` ([Documentation](https://www.switch.ch/security/info/public-dns/))
+* `https://nat64.tuxis.nl`
+  ([Documentation](https://www.tuxis.nl/blog/public-doh-dot-dns64-nat64-service-20191021/);
+  NAT64, and no IPv4 address)
 
 ### DoT
 
@@ -217,7 +222,12 @@ python3-pycurl` will install everything you need.
 * `dot.ffmuc.net` ([Documentation](https://ffmuc.net/wiki/doku.php?id=knb:dohdot_en)) 
 * `ns0.ldn-fai.net` ([Documentation in french](https://ldn-fai.net/serveur-dns-recursif-ouvert/))
 * `dot.libredns.gr` ([Documentation](https://libredns.gr/))
-
+* `dns.switch.ch` ([Documentation](https://www.switch.ch/security/info/public-dns/))
+* `nat64.tuxis.net`
+  ([Documentation](https://www.tuxis.nl/blog/public-doh-dot-dns64-nat64-service-20191021/);
+  NAT64, and no IPv4 address)
+* `anycast.censurfridns.dk` ([Documentation](https://blog.uncensoreddns.org/))
+  
 ## License 
 
 GPL. See LICENSE.