Comment by cleanbrowsing

Pushed a shell script to compare all of them from your location:

https://github.com/cleanbrowsing/dnsperftest

  $ sh ./dnstest.sh |sort -k 22 -n
               test1   test2   test3   test4   test5   test6   test7   test8   test9   test10  Average 
  cloudflare     1 ms    1 ms    1 ms    4 ms    1 ms    1 ms    1 ms    1 ms    1 ms    1 ms      1.30
  norton         2 ms    2 ms    2 ms    2 ms    2 ms    2 ms    2 ms    2 ms    2 ms    2 ms      2.00
  neustar        2 ms    2 ms    2 ms    2 ms    1 ms    2 ms    2 ms    2 ms    2 ms    22 ms     3.90
  cleanbrowsing  11 ms   23 ms   11 ms   11 ms   11 ms   11 ms   11 ms   13 ms   12 ms   11 ms     12.50
  google         4 ms    4 ms    3 ms    21 ms   21 ms   61 ms   3 ms    21 ms   21 ms   22 ms     18.10
  opendns        2 ms    2 ms    2 ms    39 ms   2 ms    75 ms   2 ms    21 ms   39 ms   13 ms     19.70
  comodo         22 ms   23 ms   22 ms   22 ms   22 ms   22 ms   22 ms   22 ms   22 ms   23 ms     22.20
  quad9          10 ms   37 ms   10 ms   10 ms   10 ms   145 ms  10 ms   10 ms   10 ms   20 ms     27.20
  yandex         177 ms  216 ms  178 ms  182 ms  186 ms  177 ms  183 ms  174 ms  186 ms  222 ms    188.10
  adguard        199 ms  210 ms  200 ms  201 ms  202 ms  202 ms  199 ms  200 ms  198 ms  201 ms    201.20