@mikerspencer @metin
I just tested it, and I didn't like the ping compared to quad9.
joindns4.eu = 400 - 700 ms
Quad9.net = 100 - 200 ms
I use Quad9 because it has servers spread across Europe, does not store logs, and is transparent.
Quad9 locations: https://quad9.net/service/locations/
The ping was tested with: https://dnscheck.tools/