DNS-Server

IPv4:

Cloudflare DNS 1	1.1.1.1
Cloudflare DNS 2	1.0.0.1

Google DNS 1	8.8.8.8
Google DNS 2	8.8.4.4

Quad9 DNS 1	9.9.9.9
Quad9 DNS 2	149.112.112.112

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IPv6:

Cloudflare DNS 1	2606:4700:4700::1111
Cloudflare DNS 2	2606:4700:4700::1001

Google DNS 1	2001:4860:4860::8888
Google DNS 2	2001:4860:4860::8844

Quad9 DNS 1	2620:fe::9
Quad9 DNS 2	2620:fe::fe