I frequently get mini failures with quad9 and my DNS client is too dumb to retry with another server (or quad9 returns a valid but bogus response that prevents my client from hoping to the next server) so I had to ditch quad9.
Quad9 also has worse latency but I could live with it, I just can't live with web pages failing to load several times per day(especially hacker News that has their DNS TTL set to 1 second)
It doesn't happen with my ISP's servers nor with CloudFlare or google or even good ol' L3.
Quad9 also has worse latency but I could live with it, I just can't live with web pages failing to load several times per day(especially hacker News that has their DNS TTL set to 1 second)
It doesn't happen with my ISP's servers nor with CloudFlare or google or even good ol' L3.