Ping times seem reasonable, with no packet loss:
$ ping app.fastly.com
PING prod.a.ssl.global.fastlylb.net (23.235.47.249): 56 data bytes
64 bytes from 23.235.47.249: icmp_seq=0 ttl=56 time=19.061 ms
64 bytes from 23.235.47.249: icmp_seq=1 ttl=56 time=12.375 ms
64 bytes from 23.235.47.249: icmp_seq=2 ttl=57 time=8.196 ms
64 bytes from 23.235.47.249: icmp_seq=3 ttl=56 time=18.028 ms
64 bytes from 23.235.47.249: icmp_seq=4 ttl=56 time=10.225 ms
64 bytes from 23.235.47.249: icmp_seq=5 ttl=57 time=9.849 ms
64 bytes from 23.235.47.249: icmp_seq=6 ttl=57 time=20.997 ms
--- prod.a.ssl.global.fastlylb.net ping statistics ---
7 packets transmitted, 7 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 8.196/14.104/20.997/4.759 ms
$ ping www.flickr.com
PING flickr-panda-police.a00.yahoodns.net (206.190.61.106): 56 data bytes
64 bytes from 206.190.61.106: icmp_seq=0 ttl=56 time=8.441 ms
64 bytes from 206.190.61.106: icmp_seq=1 ttl=56 time=17.344 ms
64 bytes from 206.190.61.106: icmp_seq=2 ttl=56 time=8.281 ms
64 bytes from 206.190.61.106: icmp_seq=3 ttl=56 time=8.789 ms
64 bytes from 206.190.61.106: icmp_seq=4 ttl=56 time=17.261 ms
--- flickr-panda-police.a00.yahoodns.net ping statistics ---
5 packets transmitted, 5 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 8.281/12.023/17.344/4.314 msSome traceroutes seem to black-hole:
$ traceroute app.fastly.com
traceroute to prod.a.ssl.global.fastlylb.net (23.235.47.249), 64 hops max, 52 byte packets
1 homeportal (192.168.42.1) 2.286 ms 2.206 ms 1.458 ms
2 173-228-112-1.dsl.dynamic.fusionbroadband.com (173.228.112.1) 9.991 ms 6.659 ms 7.636 ms
3 gig1-30.cr1.lsatca11.sonic.net (70.36.243.85) 7.448 ms 19.756 ms 6.915 ms
4 ae2.cr2.lsatca11.sonic.net (50.0.79.178) 21.639 ms 27.170 ms 45.594 ms
5 50.ae4.gw.pao1.sonic.net (142.254.58.158) 11.891 ms 7.096 ms 7.085 ms
6 te0-0-0-15.ccr21.sjc04.atlas.cogentco.com (38.104.141.81) 20.968 ms 7.530 ms 7.051 ms
7 be2013.ccr21.sjc03.atlas.cogentco.com (154.54.5.105) 8.216 ms 7.869 ms 17.312 ms
8 * * *
9 * * *
10 * * *
11 * * *
$ traceroute www.cnn.com
traceroute to turner.map.fastly.net (23.235.44.73), 64 hops max, 52 byte packets
1 homeportal (192.168.42.1) 1.990 ms 1.402 ms 1.560 ms
2 173-228-112-1.dsl.dynamic.fusionbroadband.com (173.228.112.1) 6.972 ms 8.602 ms 20.275 ms
3 gig1-30.cr1.lsatca11.sonic.net (70.36.243.85) 20.852 ms 6.790 ms 7.516 ms
4 ae2.cr2.lsatca11.sonic.net (50.0.79.178) 63.897 ms 33.768 ms 20.518 ms
5 50.ae4.gw.pao1.sonic.net (142.254.58.158) 6.641 ms 6.590 ms 8.969 ms
6 te0-0-0-15.ccr21.sjc04.atlas.cogentco.com (38.104.141.81) 7.398 ms 21.581 ms 20.436 ms
7 be2016.ccr22.sfo01.atlas.cogentco.com (154.54.0.177) 9.989 ms 9.948 ms
be2015.ccr21.sfo01.atlas.cogentco.com (154.54.7.173) 12.407 ms
8 be2133.ccr22.mci01.atlas.cogentco.com (154.54.30.66) 46.315 ms
be2132.ccr21.mci01.atlas.cogentco.com (154.54.30.54) 45.744 ms 58.021 ms
9 be2433.ccr22.dfw01.atlas.cogentco.com (154.54.3.213) 57.269 ms
be2432.ccr21.dfw01.atlas.cogentco.com (154.54.3.133) 58.084 ms
be2433.ccr22.dfw01.atlas.cogentco.com (154.54.3.213) 55.837 ms
10 be2032.ccr21.dfw03.atlas.cogentco.com (154.54.6.54) 66.643 ms
be2031.ccr21.dfw03.atlas.cogentco.com (154.54.7.46) 66.656 ms 63.306 ms
11 * * *
12 * * *
13 * * *
$ traceroute gist.github.com
traceroute to gist.github.com (192.30.252.140), 64 hops max, 52 byte packets
1 homeportal (192.168.42.1) 1.848 ms 2.711 ms 2.845 ms
2 173-228-112-1.dsl.dynamic.fusionbroadband.com (173.228.112.1) 1195.708 ms 155.129 ms 283.988 ms
3 gig1-30.cr1.lsatca11.sonic.net (70.36.243.85) 301.057 ms 337.442 ms 286.505 ms
4 ae2.cr2.lsatca11.sonic.net (50.0.79.178) 292.770 ms 308.373 ms 297.500 ms
5 50.ae4.gw.pao1.sonic.net (142.254.58.158) 267.628 ms 318.010 ms 247.269 ms
6 ae2.0.gw.equinix-sj.sonic.net (50.0.2.14) 214.239 ms 245.494 ms 255.445 ms
7 sonicnet-customer.xo.com (216.156.84.101) 222.996 ms 154.229 ms 59.567 ms
8 207.88.14.225.ptr.us.xo.net (207.88.14.225) 113.176 ms 84.028 ms 82.815 ms
9 te-2-0-0.rar3.washington-dc.us.xo.net (207.88.12.70) 84.131 ms 93.106 ms 92.071 ms
10 ae0d1.cir1.ashburn-va.us.xo.net (207.88.13.65) 89.155 ms 81.503 ms 93.373 ms
11 * * *
12 * * *
13 * * *But other traceroutes are fine:
$ traceroute www.flickr.com
traceroute: Warning: www.flickr.com has multiple addresses; using 206.190.61.106
traceroute to flickr-panda-police.a00.yahoodns.net (206.190.61.106), 64 hops max, 52 byte packets
1 homeportal (192.168.42.1) 1.941 ms 1.559 ms 3.675 ms
2 173-228-112-1.dsl.dynamic.fusionbroadband.com (173.228.112.1) 11.903 ms 8.541 ms 8.222 ms
3 gig1-30.cr1.lsatca11.sonic.net (70.36.243.85) 6.838 ms 6.880 ms 6.640 ms
4 ae2.cr2.lsatca11.sonic.net (50.0.79.178) 21.262 ms 27.368 ms 33.299 ms
5 50.ae4.gw.pao1.sonic.net (142.254.58.158) 7.409 ms 9.790 ms 6.689 ms
6 ae2.0.gw.equinix-sj.sonic.net (50.0.2.14) 7.381 ms 7.289 ms 20.811 ms
7 pat1.sjc.yahoo.com (206.223.116.150) 26.824 ms
pat2.sjc.yahoo.com (206.223.116.16) 24.659 ms 7.420 ms
8 unknown-206-190-60-x.yahoo.com (206.190.60.19) 7.647 ms
unknown-206-190-60-x.yahoo.com (206.190.60.33) 9.629 ms
unknown-206-190-60-x.yahoo.com (206.190.60.45) 8.074 ms
9 r1.ycpi.vip.sjb.yahoo.net (206.190.61.106) 24.986 ms 7.707 ms 7.642 ms