Public DNS Service Comparisons - www.amazon.com
This document is a companion to the article 1.1.1.1: Fast, but not so accurate (yet).
"A" response records for Amazon, and network connectivity and latency to the answers, from Comcast in Memphis, TN. Tests conducted 2018-04-04.
Note: Traceroutes into Amazon-operated networks, including CloudFront, have a tendency to be obfuscated due to network topology and ICMP policy.
Querying the A record for www.amazon.com
, 1.1.1.1 gives a mediocre answer. The most
optimal results were returned by Google, Comcast, and Level3, pointing to servers
in Dallas.
1.1.1.1 resolved www.amazon.com to 52.85.142.82 (server-52-85-142-82.iad12.r.cloudfront.net) in northern Virginia, 18 hops, ping average 46.8 ms.
[parse@word ~]$ dig +short A www.amazon.com @1.1.1.1
52.85.142.82
[parse@word ~]$ mtr -c 100 52.85.142.82
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 0.9 1.6 0.8 23.0 2.9
2. 96.120.15.nnn 0.0% 100 9.6 13.5 9.2 38.5 5.6
3. 68.85.55.249 0.0% 100 11.2 12.1 9.6 28.6 3.3
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 10.9 14.4 10.8 47.2 6.5
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 31.9 24.0 20.5 79.7 6.3
6. be-12441-pe01.1950stemmons.tx.ibo 0.0% 100 23.4 23.3 19.6 41.9 4.7
7. 23.30.207.150 0.0% 100 21.5 22.7 19.6 41.5 3.9
8. 54.239.105.109 0.0% 100 50.4 57.1 43.7 102.5 9.0
9. ???
10. ???
11. ???
12. 54.239.104.151 0.0% 100 45.3 47.8 43.8 71.8 5.5
13. ???
14. 205.251.245.59 0.0% 100 46.7 48.0 43.9 77.8 6.4
15. ???
16. ???
17. ???
18. server-52-85-142-82.iad12.r.cloud 0.0% 100 45.1 46.8 43.4 68.7 5.2
4.2.2.4 resolved www.amazon.com to 184.29.151.228 (a184-29-151-228.deploy.static.akamaitechnologies.com) in Dallas, 8 hops, ping average 21.5 ms.
[parse@word ~]$ dig +short A youtube.com @4.2.2.4
184.29.151.228
[parse@word ~]$ mtr -c 100 184.29.151.228
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.1 1.6 0.8 30.2 3.0
2. 96.120.15.nnn 0.0% 100 10.5 13.1 9.8 37.5 5.2
3. 68.85.55.249 0.0% 100 10.9 12.3 9.7 34.9 4.2
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 12.3 13.3 10.9 40.6 3.4
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 25.0 23.5 20.1 52.5 4.2
6. be-12495-pe03.1950stemmons.tx.ibo 0.0% 100 31.7 22.3 20.0 44.4 3.4
7. 173.167.58.218 0.0% 100 20.8 23.3 19.2 55.4 5.3
8. a184-29-151-228.deploy.static.aka 0.0% 100 20.5 21.5 19.0 42.2 3.4
8.8.8.8 resolved www.amazon.com to 54.192.5.179 (server-54-192-5-179.dfw3.r.cloudfront.net) in Dallas, 15 hops, ping average 21.5 ms.
[parse@word ~]$ dig +short A www.amazon.com @8.8.8.8
54.192.5.179
[parse@word ~]$ mtr -c 100 54.192.5.179
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.0 1.7 0.8 28.6 3.3
2. 96.120.15.nnn 0.0% 100 10.3 12.2 9.6 35.5 3.7
3. Te5-1-ur01.bartlett.tn.malt.comca 0.0% 100 11.9 12.1 9.1 25.3 3.1
4. 68.86.242.157 0.0% 100 29.9 12.3 9.7 39.8 4.4
5. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 14.0 14.0 10.5 42.0 4.8
6. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 22.1 24.3 21.0 57.2 5.9
7. be-12441-pe01.1950stemmons.tx.ibo 0.0% 100 22.1 23.5 19.8 86.0 7.8
8. 23.30.207.150 0.0% 100 22.1 24.8 19.8 56.2 7.2
9. 54.239.105.97 0.0% 100 37.5 33.7 21.6 83.7 8.9
10. ???
11. 54.240.217.51 0.0% 100 21.9 22.3 19.5 51.4 4.4
12. ???
13. ???
14. ???
15. server-54-192-5-179.dfw3.r.cloudf 0.0% 100 21.1 21.5 18.8 39.5 3.0
9.9.9.9 resolved youtube.com to 52.84.87.216 (server-52-84-87-216.yul62.r.cloudfront.net) in Montreal, Quebec, Canada, 23 hops, ping average 60.8 ms.
[parse@word ~]$ dig +short A www.amazon.com @9.9.9.9
52.84.87.216
[parse@word ~]$ mtr -c 100 52.84.87.216
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.2 2.3 0.9 29.2 5.0
2. 96.120.15.nnn 0.0% 100 20.3 12.6 9.1 34.9 4.7
3. Te4-2-ur01.bartlett.tn.malt.comca 0.0% 100 10.0 12.3 9.5 37.8 3.9
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 13.3 13.8 10.8 37.5 4.1
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 22.1 24.0 20.7 39.6 3.8
6. be-12441-pe01.1950stemmons.tx.ibo 0.0% 100 22.3 22.8 18.8 63.0 5.7
7. dls-b21-link.telia.net 0.0% 100 22.3 23.5 20.0 41.4 4.3
8. atl-b22-link.telia.net 0.0% 100 35.4 36.1 30.2 58.0 7.2
9. ash-bb4-link.telia.net 0.0% 100 58.0 49.6 46.1 86.0 6.1
10. nyk-bb4-link.telia.net 0.0% 100 52.8 54.0 51.3 71.3 3.2
11. nyk-b5-link.telia.net 0.0% 100 52.4 55.0 51.4 81.3 5.8
12. 80.239.132.214 0.0% 100 53.5 54.3 51.4 76.8 3.9
13. ???
14. ???
15. ???
16. ???
17. 52.94.82.216 0.0% 100 65.9 67.2 59.7 103.6 7.0
18. 52.94.82.211 0.0% 100 59.9 62.0 58.4 93.3 6.1
19. ???
20. ???
21. ???
22. ???
23. server-52-84-87-216.yul62.r.cloud 0.0% 100 59.0 60.8 57.9 82.9 4.4
75.75.75.75 (Comcast's DNS) resolved www.amazon.com to 13.32.171.225 (dfw28s02-in-f14.1e100.net) in Dallas, 14 hops, ping average 22.7 ms.
[parse@word ~]$ dig +short A www.amazon.com @75.75.75.75
13.32.171.225
[parse@word ~]$ mtr -c 100 13.32.171.225
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.2 1.9 0.8 29.5 3.8
2. 96.120.15.nnn 0.0% 100 22.9 12.9 9.5 33.5 4.7
3. Te4-2-ur01.bartlett.tn.malt.comca 0.0% 100 14.3 12.8 9.4 38.8 5.4
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 20.5 14.3 10.9 47.1 5.2
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 24.4 24.5 20.5 62.5 6.2
6. be-12495-pe03.1950stemmons.tx.ibo 0.0% 100 22.6 22.0 19.6 37.3 2.7
7. 50.248.118.202 0.0% 100 20.6 22.4 19.5 36.9 3.1
8. 54.239.105.113 0.0% 100 78.4 33.9 21.2 78.4 8.2
9. ???
10. ???
11. ???
12. ???
13. ???
14. server-13-32-171-225.dfw54.r.clou 0.0% 100 20.6 22.7 19.7 47.1 4.7
DNS server | Answer RR | City | Avg Latency
-------------|------------------|------------------|------------
1.1.1.1 | 52.85.142.82 | Dulles, VA | 46.8 ms
4.2.2.4 | 184.29.151.228 | Dallas, TX | 21.5 ms
8.8.8.8 | 54.192.5.179 | Dallas, TX | 21.5 ms
9.9.9.9 | 52.84.87.216 | Montreal, QC | 60.8 ms
75.75.75.75 | 13.32.171.225 | Dallas, TX | 22.7 ms
Best results: 4.2.2.4, 8.8.8.8, 75.75.75.75
Worst results: 9.9.9.9