貌似是 cdn 坏了
www.v2ex.comcdn.v2ex.com没 A 记录了
C:\Windows\system32>dig
www.v2ex.com +trace
; <<>> DiG 9.10.3-P2 <<>>
www.v2ex.com +trace
;; global options: +cmd
. 518400 IN NS
M.ROOT-SERVERS.NET.
. 518400 IN NS
D.ROOT-SERVERS.NET.
. 518400 IN NS
H.ROOT-SERVERS.NET.
. 518400 IN NS
F.ROOT-SERVERS.NET.
. 518400 IN NS
G.ROOT-SERVERS.NET.
. 518400 IN NS
E.ROOT-SERVERS.NET.
. 518400 IN NS
K.ROOT-SERVERS.NET.
. 518400 IN NS
J.ROOT-SERVERS.NET.
. 518400 IN NS
L.ROOT-SERVERS.NET.
. 518400 IN NS
C.ROOT-SERVERS.NET.
. 518400 IN NS
I.ROOT-SERVERS.NET.
. 518400 IN NS
B.ROOT-SERVERS.NET.
. 518400 IN NS
A.ROOT-SERVERS.NET.
;; Received 797 bytes from 127.0.0.1#53(127.0.0.1) in 1 ms
com. 172800 IN NS
k.gtld-servers.net.
com. 172800 IN NS
c.gtld-servers.net.
com. 172800 IN NS
h.gtld-servers.net.
com. 172800 IN NS
i.gtld-servers.net.
com. 172800 IN NS
d.gtld-servers.net.
com. 172800 IN NS
m.gtld-servers.net.
com. 172800 IN NS
a.gtld-servers.net.
com. 172800 IN NS
j.gtld-servers.net.
com. 172800 IN NS
l.gtld-servers.net.
com. 172800 IN NS
g.gtld-servers.net.
com. 172800 IN NS
b.gtld-servers.net.
com. 172800 IN NS
f.gtld-servers.net.
com. 172800 IN NS
e.gtld-servers.net.
com. 86400 IN DS 30909 8 2 E2D3C916F6DEEAC73294E8
268FB5885044A833FC5459588F4A9184CF C41A5766
com. 86400 IN RRSIG DS 8 1 86400 20151230170000 2015
1220160000 62530 . KfmcI/Nv1AGIUv0XgmDvqH+Cei+xw/5s9s0Ti5wBaT0bszXNDWWhq7MZ Drlq
uL3fpKYVV9R5flnDtVAtuguGfD5ahvRnV/M9hussykfLI1E0Y9O2 Lgv+Hx8zJqJ1fScYy17cMMqB416
JIj9ODLVMCQE+rw+cbEm7UzMSkG78 mW0=
;; Received 736 bytes from 199.7.91.13#53(
D.ROOT-SERVERS.NET) in 176 ms
v2ex.com. 172800 IN NS
ns-153.awsdns-19.com.
v2ex.com. 172800 IN NS
ns-940.awsdns-53.net.
v2ex.com. 172800 IN NS
ns-1546.awsdns-01.co.uk.
v2ex.com. 172800 IN NS
ns-1330.awsdns-38.org.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OS
M6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20151226055
326 20151219044326 51797 com. SpiAXslRV5sdT+l4wrsYTn/W3dH1UJcmd2eO0cXluTAkaS9TDp
4an0qd jNxu6U51N4K09aaj8tkSqPi4JlGFUV9Yx3c//ytPaqWt7dOmUaEvnihL egFcLcTL6DD7RVvE
oLT6aANmg8jDS9pQXjFIR3wDRDqLvfs6L96uqGvc V1w=
IH1VN1V3NUGI73NHCPU8FOJS299FC7MO.com. 86400 IN NSEC3 1 1 0 - IH29ET6DPIJTEKS3J42
646VLRIJL5LAP NS DS RRSIG
IH1VN1V3NUGI73NHCPU8FOJS299FC7MO.com. 86400 IN RRSIG NSEC3 8 2 86400 20151227054
136 20151220043136 51797 com. kSsuhbBpUjRiXWXElBfMi9XPTQ152z3aZtbDl9d0ordz8yu4if
palFpI 5NIswJQ/70KiLNZ+B56lyp6ZCH20soz3bhN/xKrVMdAukcrTT/7Z20CB pXLqfGfs0Rm9KRt+
a45qtIApYj0aBnpUBEtJGk5yKbT1xHNPOLHpZbXm z4M=
;; Received 695 bytes from 192.55.83.30#53(
m.gtld-servers.net) in 210 ms
www.v2ex.com. 1800 IN CNAME
v2ex.global.zgslb.net.
v2ex.com. 172800 IN NS
ns-1330.awsdns-38.org.
v2ex.com. 172800 IN NS
ns-153.awsdns-19.com.
v2ex.com. 172800 IN NS
ns-1546.awsdns-01.co.uk.
v2ex.com. 172800 IN NS
ns-940.awsdns-53.net.
;; Received 210 bytes from 205.251.198.10#53(
ns-1546.awsdns-01.co.uk) in 195 ms
C:\Windows\system32>dig
cdn.v2ex.com +trace
; <<>> DiG 9.10.3-P2 <<>>
cdn.v2ex.com +trace
;; global options: +cmd
. 518400 IN NS
A.ROOT-SERVERS.NET.
. 518400 IN NS
G.ROOT-SERVERS.NET.
. 518400 IN NS
M.ROOT-SERVERS.NET.
. 518400 IN NS
F.ROOT-SERVERS.NET.
. 518400 IN NS
E.ROOT-SERVERS.NET.
. 518400 IN NS
C.ROOT-SERVERS.NET.
. 518400 IN NS
D.ROOT-SERVERS.NET.
. 518400 IN NS
L.ROOT-SERVERS.NET.
. 518400 IN NS
K.ROOT-SERVERS.NET.
. 518400 IN NS
B.ROOT-SERVERS.NET.
. 518400 IN NS
I.ROOT-SERVERS.NET.
. 518400 IN NS
J.ROOT-SERVERS.NET.
. 518400 IN NS
H.ROOT-SERVERS.NET.
;; Received 797 bytes from 127.0.0.1#53(127.0.0.1) in 0 ms
com. 172800 IN NS
g.gtld-servers.net.
com. 172800 IN NS
a.gtld-servers.net.
com. 172800 IN NS
d.gtld-servers.net.
com. 172800 IN NS
e.gtld-servers.net.
com. 172800 IN NS
h.gtld-servers.net.
com. 172800 IN NS
b.gtld-servers.net.
com. 172800 IN NS
f.gtld-servers.net.
com. 172800 IN NS
j.gtld-servers.net.
com. 172800 IN NS
m.gtld-servers.net.
com. 172800 IN NS
k.gtld-servers.net.
com. 172800 IN NS
l.gtld-servers.net.
com. 172800 IN NS
c.gtld-servers.net.
com. 172800 IN NS
i.gtld-servers.net.
com. 86400 IN DS 30909 8 2 E2D3C916F6DEEAC73294E8
268FB5885044A833FC5459588F4A9184CF C41A5766
com. 86400 IN RRSIG DS 8 1 86400 20151230170000 2015
1220160000 62530 . KfmcI/Nv1AGIUv0XgmDvqH+Cei+xw/5s9s0Ti5wBaT0bszXNDWWhq7MZ Drlq
uL3fpKYVV9R5flnDtVAtuguGfD5ahvRnV/M9hussykfLI1E0Y9O2 Lgv+Hx8zJqJ1fScYy17cMMqB416
JIj9ODLVMCQE+rw+cbEm7UzMSkG78 mW0=
;; Received 736 bytes from 192.5.5.241#53(
F.ROOT-SERVERS.NET) in 23 ms
v2ex.com. 172800 IN NS
ns-153.awsdns-19.com.
v2ex.com. 172800 IN NS
ns-940.awsdns-53.net.
v2ex.com. 172800 IN NS
ns-1546.awsdns-01.co.uk.
v2ex.com. 172800 IN NS
ns-1330.awsdns-38.org.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OS
M6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20151226055
326 20151219044326 51797 com. SpiAXslRV5sdT+l4wrsYTn/W3dH1UJcmd2eO0cXluTAkaS9TDp
4an0qd jNxu6U51N4K09aaj8tkSqPi4JlGFUV9Yx3c//ytPaqWt7dOmUaEvnihL egFcLcTL6DD7RVvE
oLT6aANmg8jDS9pQXjFIR3wDRDqLvfs6L96uqGvc V1w=
IH1VN1V3NUGI73NHCPU8FOJS299FC7MO.com. 86400 IN NSEC3 1 1 0 - IH29ET6DPIJTEKS3J42
646VLRIJL5LAP NS DS RRSIG
IH1VN1V3NUGI73NHCPU8FOJS299FC7MO.com. 86400 IN RRSIG NSEC3 8 2 86400 20151227054
136 20151220043136 51797 com. kSsuhbBpUjRiXWXElBfMi9XPTQ152z3aZtbDl9d0ordz8yu4if
palFpI 5NIswJQ/70KiLNZ+B56lyp6ZCH20soz3bhN/xKrVMdAukcrTT/7Z20CB pXLqfGfs0Rm9KRt+
a45qtIApYj0aBnpUBEtJGk5yKbT1xHNPOLHpZbXm z4M=
;; Received 695 bytes from 192.35.51.30#53(
f.gtld-servers.net) in 171 ms
cdn.v2ex.com. 1800 IN CNAME
v2ex.global.zgslb.net.
v2ex.com. 172800 IN NS
ns-1330.awsdns-38.org.
v2ex.com. 172800 IN NS
ns-153.awsdns-19.com.
v2ex.com. 172800 IN NS
ns-1546.awsdns-01.co.uk.
v2ex.com. 172800 IN NS
ns-940.awsdns-53.net.
;; Received 210 bytes from 205.251.192.153#53(
ns-153.awsdns-19.com) in 201 ms