DNS Servere
Cloudflare Public DNS
Cloudflare Public DNS med malware blokering
Cloudflare Public DNS med malware og adult blokering
Google Public DNS
OpenDNS
1.1.1.1 & 1.0.0.1
1.1.1.2 & 1.0.0.2
1.1.1.3 & 1.0.0.3
8.8.8.8 & 8.8.4.4
208.67.222.222 & 208.67.220.220
The Anti Abuse Project
DMARC/SPF/DKIM Check