This document is a companion to the article 1.1.1.1: Fast, but not so accurate (yet).
"A" response records for Google, and network connectivity and latency to the answers, from Comcast in Memphis, TN. Tests conducted 2018-04-04.
Querying the A record for google.com, 1.1.1.1 gives the poorest answer, a
server more than twice as distant as those returned by other resolvers. The most
optimal results were returned by Comcast and Level3.
1.1.1.1 resolved google.com to 172.217.12.174 (lga25s62-in-f14.1e100.net) in New York, 17 hops, ping average 50.8 ms.
[parse@word ~]$ dig +short A google.com @1.1.1.1
172.217.12.174
[parse@word ~]$ mtr -c 100 172.217.12.174
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 0.9 1.4 0.8 15.4 1.8
2. 96.120.15.nnn 0.0% 100 9.7 12.5 9.7 31.9 3.9
3. Te5-1-ur01.bartlett.tn.malt.comc 0.0% 100 10.4 12.0 9.8 22.4 2.5
4. 68.86.242.157 0.0% 100 10.6 12.7 9.9 33.4 3.7
5. be-92-ar02.dannythomas.tn.malt.c 0.0% 100 12.4 12.7 10.8 23.1 1.8
6. be-22258-cr02.dallas.tx.ibone.co 0.0% 100 23.2 23.5 20.2 42.3 3.0
7. be-12495-pe03.1950stemmons.tx.ib 0.0% 100 33.4 23.4 20.0 68.2 7.0
8. 66.208.228.66 0.0% 100 22.4 22.7 19.6 47.8 4.3
9. 108.170.240.209 0.0% 100 24.5 22.8 19.7 43.8 3.7
10. 108.170.228.81 0.0% 100 21.9 24.2 20.0 62.2 7.6
11. 209.85.250.47 0.0% 100 28.0 28.6 26.0 44.9 3.2
12. 209.85.249.18 0.0% 100 45.4 44.3 40.5 75.6 6.0
13. 216.239.58.255 0.0% 100 51.7 52.4 49.2 79.3 5.1
14. 108.170.227.150 0.0% 100 49.2 51.3 48.6 71.2 3.8
15. ???
16. 108.170.226.201 0.0% 100 50.0 51.3 48.9 62.5 3.3
17. lga25s62-in-f14.1e100.net 0.0% 100 49.8 50.8 46.7 78.9 5.2
4.2.2.4 resolved google.com to 216.58.194.110 (dfw06s48-in-f14.1e100.net) in Dallas, 15 hops with visible load balancing, ping average 21.5 ms.
[parse@word ~]$ dig +short A google.com @4.2.2.4
216.58.194.110
[parse@word ~]$ mtr -c 100 216.58.194.110
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.2 1.9 0.7 27.8 3.2
2. 96.120.15.nnn 0.0% 100 10.4 11.7 9.1 35.5 3.1
3. 68.85.55.249 0.0% 100 9.8 12.6 9.1 40.0 5.5
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 12.4 13.5 10.8 29.3 3.8
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 23.1 23.8 20.0 50.6 4.4
6. be-12441-pe01.1950stemmons.tx.ibo 0.0% 100 21.9 23.0 19.9 45.9 4.4
7. 75.149.231.222 0.0% 100 21.8 21.9 19.9 39.6 2.7
8. ???
9. 209.85.242.180 0.0% 100 48.0 26.6 19.7 77.7 9.5
209.85.242.182
10. 108.170.240.209 0.0% 100 20.9 22.5 20.2 35.5 2.9
108.170.240.146
11. 108.170.228.81 0.0% 100 21.3 23.1 20.3 45.5 4.4
216.239.59.168
12. 108.170.228.90 0.0% 100 21.1 24.1 19.7 51.7 6.1
216.239.63.206
13. 108.170.252.129 0.0% 100 20.9 22.4 19.6 50.9 4.1
14. 108.170.230.113 0.0% 100 22.5 23.3 19.9 52.0 5.0
15. dfw06s48-in-f110.1e100.net 0.0% 100 21.3 21.5 19.0 38.1 2.9
8.8.8.8 resolved google.com to 172.217.6.174 (dfw25s17-in-f174.1e100.net) in Dallas, 12 hops, ping average 21.6 ms.
[parse@word ~]$ dig +short A google.com @8.8.8.8
172.217.6.174
[parse@word ~]$ mtr -c 100 172.217.6.174
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 3.5 1.5 0.8 26.2 2.5
2. 96.120.15.nnn 0.0% 100 11.2 12.3 9.7 41.5 4.5
3. Te5-4-ur01.bartlett.tn.malt.comc 0.0% 100 10.5 12.7 9.7 40.7 4.7
4. 68.86.242.157 0.0% 100 10.8 12.4 9.2 31.2 3.9
5. be-92-ar02.dannythomas.tn.malt.c 0.0% 100 13.4 13.6 10.7 41.3 4.7
6. be-22258-cr02.dallas.tx.ibone.co 0.0% 100 24.4 24.0 20.5 51.2 5.0
7. be-12441-pe01.1950stemmons.tx.ib 0.0% 100 22.8 22.4 19.6 44.0 3.7
8. 75.149.231.222 0.0% 100 19.8 22.9 19.7 47.5 4.9
9. ???
10. 209.85.242.54 0.0% 100 20.8 22.3 19.8 47.0 3.9
11. 216.239.35.161 1.0% 100 22.2 21.7 19.7 33.1 1.5
12. dfw25s17-in-f14.1e100.net 0.0% 100 21.3 21.6 18.9 50.0 4.6
9.9.9.9 resolved google.com to 172.217.164.46 (atl14s91-in-f14.1e100.net) in Atlanta, 15 hops, ping average 31.8 ms.
[parse@word ~]$ dig +short A google.com @9.9.9.9
172.217.164.46
[parse@word ~]$ mtr -c 100 172.217.164.46
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.2 1.6 0.9 16.6 2.2
2. 96.120.15.nnn 0.0% 100 11.5 13.2 9.7 41.2 6.2
3. Te5-4-ur01.bartlett.tn.malt.comca 0.0% 100 10.8 12.8 9.3 40.9 5.0
4. 68.86.242.157 0.0% 100 12.3 12.2 9.4 40.6 3.9
5. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 12.7 13.0 10.4 25.1 2.2
6. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 25.2 23.6 20.6 45.3 3.1
7. be-12495-pe03.1950stemmons.tx.ibo 0.0% 100 20.7 22.4 20.2 36.5 3.1
8. 66.208.228.66 0.0% 100 23.6 22.6 19.4 46.8 4.1
9. 108.170.252.162 0.0% 100 23.5 23.7 19.7 53.7 5.7
10. 108.170.228.91 0.0% 100 23.9 23.0 20.5 48.1 4.5
11. 209.85.243.161 0.0% 100 32.3 34.1 30.6 53.7 4.3
12. 64.233.175.250 0.0% 100 32.7 34.9 30.1 62.8 6.0
13. 108.170.249.129 0.0% 100 33.0 33.2 30.1 68.6 5.0
14. 209.85.250.179 0.0% 100 34.4 33.8 31.4 53.3 3.6
15. atl14s91-in-f14.1e100.net 0.0% 100 30.8 31.8 29.6 45.1 2.6
75.75.75.75 (Comcast's DNS) resolved google.com to 172.217.9.142 (dfw25s26-in-f14.1e100.net) in Dallas, 10 hops, ping average 21.5 ms.
[parse@word ~]$ dig +short A google.com @75.75.75.75
172.217.9.142
[parse@word ~]$ mtr -c 100 172.217.9.142
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 3.3 1.8 0.8 29.9 3.5
2. 96.120.15.nnn 0.0% 100 10.6 12.0 9.8 25.8 2.7
3. 68.85.55.249 0.0% 100 11.8 12.8 9.2 38.3 5.2
4. be-92-ar02.dannythomas.tn.malt.c 0.0% 100 13.2 14.0 10.6 38.8 4.2
5. be-22258-cr02.dallas.tx.ibone.co 0.0% 100 23.7 24.2 20.8 53.2 4.5
6. be-12495-pe03.1950stemmons.tx.ib 0.0% 100 21.5 22.6 19.8 50.3 4.1
7. 66.208.228.66 0.0% 100 23.1 22.8 19.6 43.1 4.0
8. ???
9. 216.239.42.99 0.0% 100 21.4 22.2 19.7 37.6 3.0
10. dfw25s26-in-f14.1e100.net 0.0% 100 22.1 21.5 18.9 53.0 4.2
DNS server | Answer RR | City | Avg Latency
-------------|------------------|--------------|------------
1.1.1.1 | 172.217.12.174 | New York, NY | 50.8 ms
4.2.2.4 | 216.58.194.110 | Dallas, TX | 21.5 ms
8.8.8.8 | 172.217.6.174 | Dallas, TX | 21.6 ms
9.9.9.9 | 172.217.164.46 | Atlanta, GA | 31.8 ms
75.75.75.75 | 172.217.9.142 | Dallas, TX | 21.5 ms
Best results: 75.75.75.75, 4.2.2.4, 8.8.8.8
Worst results: 1.1.1.1