I've been running some DNS tests every minute today to look at performance. Unsurprisingly the Vodafone DNS servers are fastest for me on a FibreX (cable) connection. I used the DNS servers listed here for the test. Here are the results from the test which resolves 10 domain names from each provider every minute over 8 hours:
DNS Provider - Address - Average (ms)
- VFPrimary2 - 203.109.191.1 - 11
- VFSecondary2 - 203.118.191.1 - 14
- VFPrimary1 - 203.109.129.67 - 24
- VFSecondary1 - 203.109.129.68 - 28
- cloudflare - 1.1.1.1 - 45
- cleanbrowsing - 185.228.168.168 - 55
- adguard - 176.103.130.132 - 56
- quad9 - 9.9.9.9 - 65
- opendns - 208.67.222.123 - 78
- google - 8.8.8.8 - 129
(edited for better layout...)