Facebook est très très très lent depuis Free lorsqu'on utilise IPv6 -> éventuellement le désactiver pour vérifier si ça vient de là.
Autre effet kiss-cool : quel DNS utilises-tu ?
Si on utilise son propre resolveur, on va aux US:
badmax@tao:~$ host www.facebook.com
www.facebook.com is an alias for star-mini.c10r.facebook.com.
star-mini.c10r.facebook.com has address 31.13.66.36
star-mini.c10r.facebook.com has IPv6 address 2a03:2880:f100:183:face:b00c:0:25de
badmax@tao:~$ traceroute 31.13.66.36
traceroute to 31.13.66.36 (31.13.66.36), 30 hops max, 60 byte packets
16 ae11.er1.dfw2.us.zip.zayo.com (64.125.20.66) 200.397 ms 202.164 ms 199.073 ms
17 64.124.196.38.IPYX-100687-820-ZYO.above.net (64.124.196.38) 199.875 ms 201.043 ms 201.496 ms
18 po103.psw01b.dft4.tfbnw.net (157.240.32.147) 198.995 ms po103.psw01d.dft4.tfbnw.net (157.240.32.149) 200.760 ms po103.psw01b.dft4.tfbnw.net (157.240.32.147) 199.490 ms
19 157.240.36.65 (157.240.36.65) 199.971 ms 157.240.36.7 (157.240.36.7) 197.639 ms 197.893 ms
20 edge-star-mini-shv-02-dft4.facebook.com (31.13.66.36) 211.571 ms 212.460 ms 210.922 ms
Si on utilise google DNS, on sort via Cogent puis Telia quelque part en Allemagne
badmax@tao:~$ host www.facebook.com 8.8.8.8
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:
www.facebook.com is an alias for star-mini.c10r.facebook.com.
star-mini.c10r.facebook.com has address 31.13.93.36
star-mini.c10r.facebook.com has IPv6 address 2a03:2880:f11c:8083:face:b00c:0:25de
badmax@tao:~$ traceroute 31.13.93.36
traceroute to 31.13.93.36 (31.13.93.36), 30 hops max, 60 byte packets
16 po232.psw01d.fra3.tfbnw.net (157.240.35.95) 102.679 ms po241.psw01a.fra3.tfbnw.net (157.240.35.71) 102.455 ms po231.psw01c.fra3.tfbnw.net (157.240.32.219) 103.373 ms
17 msw1ak.01.fra3.tfbnw.net (173.252.66.113) 103.888 ms msw1ag.01.fra3.tfbnw.net (173.252.66.117) 112.427 ms msw1ac.01.fra3.tfbnw.net (173.252.66.121) 138.475 ms
18 edge-star-mini-shv-01-fra3.facebook.com (31.13.93.36) 113.411 ms 113.743 ms 110.383 ms
Si on utilise les DNS de Free, on sort, certes, par Cogent mais on reste plus proche (CDG2->France ?)
badmax@tao:~$ host www.facebook.com 212.27.40.240
Using domain server:
Name: 212.27.40.240
Address: 212.27.40.240#53
Aliases:
www.facebook.com is an alias for star-mini.c10r.facebook.com.
star-mini.c10r.facebook.com has address 179.60.192.36
star-mini.c10r.facebook.com has IPv6 address 2a03:2880:f11f:83:face:b00c:0:25de
badmax@tao:~$ traceroute 179.60.192.36
traceroute to 179.60.192.36 (179.60.192.36), 30 hops max, 60 byte packets
8 edge-network.demarc.cogentco.com (149.6.164.254) 97.155 ms 98.388 ms 98.620 ms
9 po101.psw01a.cdg2.tfbnw.net (31.13.28.3) 97.766 ms po101.psw01c.cdg2.tfbnw.net (157.240.34.241) 98.839 ms po101.psw01a.cdg2.tfbnw.net (31.13.28.3) 99.533 ms
10 173.252.67.79 (173.252.67.79) 107.757 ms msw1at.01.cdg2.tfbnw.net (204.15.20.221) 107.285 ms 107.734 ms
11 edge-star-mini-shv-01-cdg2.facebook.com (179.60.192.36) 107.956 ms 107.951 ms 107.945 ms