My guess is that this has been discussed but I couldn't find it. Probably my search term "dns server" wasn't specific enough. Via Google I can find articles saying do not use your ISP (Comcast in my case) DNS servers and articles that say just the opposite. I have been using primarily Google's servers (184.108.40.206) and occasionally OpenDNS or Comcast. I can't really any difference in performance. Almost all the major ones claim they don't use whatever data they collect for marketing purposes. I've run a couple DNS performance benchmark and the results are close enough to confirm why I can't tell any difference. So I'm curious about the collective wisdom here. As long as I stick with one of the major DNS providers (Comcast, Google, OpenDNS, Cloudfare), does it really matter whose DNS servers I use?