I have speedport smart 3 router with 1&1 versatel. When i let the nameserver get retrieved automatically from 1&1 it only uses versatel dns servers in Germany. When i enter fixed primary and secondary DNS IPs from the dns0.eu nameservers, however https://www.dnsleaktest.com/ shows that it uses google cloud servers in washington.
So i rather stick with the 1&1 DNS.
I have speedport smart 3 router with 1&1 versatel. When i let the nameserver get retrieved automatically from 1&1 it only uses versatel dns servers in Germany. When i enter fixed primary and secondary DNS IPs from the dns0.eu nameservers, however https://www.dnsleaktest.com/ shows that it uses google cloud servers in washington. So i rather stick with the 1&1 DNS.