Public DNS Service Comparisons - www.facebook.com
This document is a companion to the article 1.1.1.1: Fast, but not so accurate (yet).
"A" response records for Facebook, and network connectivity and latency to the answers, from Comcast in Memphis, TN. Tests conducted 2018-04-04.
Querying the A record for www.facebook.com, 1.1.1.1 gives a tied-for-best answer,
a low latency server in Dallas also returned by Comcast, Google, and Level3.
These four DNS providers all resolved www.facebook.com to 157.240.19.35 (edge-star-mini-shv-01-dfw5.facebook.com) in Dallas, 11 hops, ping average 21.8 ms.
[parse@word ~/dns]$ dig +short A www.facebook.com @1.1.1.1
star-mini.c10r.facebook.com.
157.240.19.35
[parse@word ~/dns]$ dig +short A www.facebook.com @4.2.2.4
star-mini.c10r.facebook.com.
157.240.19.35
[parse@word ~/dns]$ dig +short A www.facebook.com @8.8.8.8
star-mini.c10r.facebook.com.
157.240.19.35
[parse@word ~/dns]$ dig +short A www.facebook.com @75.75.75.75
star-mini.c10r.facebook.com.
157.240.19.35
[parse@word ~]$ mtr -c 100 157.240.19.35
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.2 1.9 0.8 21.9 3.1
2. 96.120.15.nnn 0.0% 100 10.9 12.2 9.6 31.7 3.6
3. Te5-1-ur01.bartlett.tn.malt.comca 0.0% 100 9.5 12.2 9.5 41.3 4.3
4. 68.86.242.157 0.0% 100 10.8 12.0 9.6 33.3 3.3
5. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 11.8 14.2 11.1 50.7 6.0
6. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 22.2 24.2 20.9 49.1 5.0
7. be-12441-pe01.1950stemmons.tx.ibo 0.0% 100 22.9 22.9 19.8 42.8 3.3
8. 173.167.58.158 0.0% 100 24.8 32.2 20.1 86.5 11.7
9. po102.psw04.dfw5.tfbnw.net 0.0% 100 24.0 22.8 19.7 45.1 4.5
10. 173.252.67.181 0.0% 100 21.7 22.6 19.4 54.2 4.9
11. edge-star-mini-shv-01-dfw5.facebo 0.0% 100 20.8 21.8 19.1 49.9 4.8
9.9.9.9 resolved www.facebook.com to 31.13.65.36 (edge-star-mini-shv-01-atl3.facebook.com) in Atlanta, 11 hops, ping average 33.1 ms.
[parse@word ~]$ dig +short A youtube.com @9.9.9.9
31.13.65.36
[parse@word ~]$ mtr -c 100 31.13.65.36
Host Loss% Snt Last Avg Best Wrst StDev
1. router-external.home.lan 0.0% 100 1.4 1.8 0.8 23.4 2.9
2. 96.120.15.nnn 0.0% 100 12.0 13.3 9.5 37.6 4.9
3. 68.85.55.249 0.0% 100 11.1 12.6 9.2 42.7 4.8
4. be-92-ar02.dannythomas.tn.malt.co 0.0% 100 19.8 13.9 10.8 30.8 3.6
5. be-22258-cr02.dallas.tx.ibone.com 0.0% 100 23.1 23.3 20.4 51.9 3.5
6. be-11424-cr02.56marietta.ga.ibone 0.0% 100 42.9 35.1 31.9 63.0 4.1
7. be-11486-pe03.56marietta.ga.ibone 0.0% 100 33.3 33.6 31.1 60.4 4.2
8. 23.30.206.90 0.0% 100 31.9 37.1 31.4 69.9 8.8
9. po103.psw01.atl3.tfbnw.net 0.0% 100 37.3 34.2 31.4 55.8 3.6
10. 173.252.67.33 0.0% 100 33.0 34.2 31.6 55.5 3.9
11. edge-star-mini-shv-01-atl3.facebo 0.0% 100 35.7 33.1 30.4 50.1 3.0
DNS server | Answer RR | City | Avg Latency
-------------|------------------|------------------|------------
1.1.1.1 | 157.240.19.35 | Dallas, TX | 21.8 ms
4.2.2.4 | 157.240.19.35 | Dallas, TX | 21.8 ms
8.8.8.8 | 157.240.19.35 | Dallas, TX | 21.8 ms
9.9.9.9 | 31.13.65.36 | Atlanta, GA | 33.1 ms
75.75.75.75 | 157.240.19.35 | Dallas, TX | 21.8 ms
Best results: 1.1.1.1, 4.2.2.4, 8.8.8.8, 75.75.75.75
Worst results: 9.9.9.9