smtp.21vianet.com DNS trace

Queried just now

Root zone

These servers manage the DNS root zone

a.root-servers.net

198.41.0.4

AS397197

Anycast IP

2001:503:ba3e::2:30

AS397197

Anycast IP

b.root-servers.net

170.247.170.2

AS394353

Anycast IP

2801:1b8:10::b

AS394353

Anycast IP

c.root-servers.net

192.33.4.12

AS2149

Anycast IP

2001:500:2::c

AS2149

Anycast IP

d.root-servers.net

199.7.91.13

AS10886

Anycast IP

2001:500:2d::d

AS10886

Anycast IP

e.root-servers.net

192.203.230.10

AS21556

Anycast IP

2001:500:a8::e

AS21556

Anycast IP

f.root-servers.net

192.5.5.241

AS3557

Anycast IP

2001:500:2f::f

AS3557

Anycast IP

g.root-servers.net

192.112.36.4

AS5927

Anycast IP

2001:500:12::d0d

AS5927

Anycast IP

h.root-servers.net

198.97.190.53

AS1508

Anycast IP

2001:500:1::53

AS1508

Anycast IP

i.root-servers.net

192.36.148.17

AS29216

Anycast IP

2001:7fe::53

AS29216

Anycast IP

j.root-servers.net

192.58.128.30

AS396661

Anycast IP

2001:503:c27::2:30

AS396661

Anycast IP

k.root-servers.net

193.0.14.129

AS25152

Anycast IP

2001:7fd::1

AS25152

Anycast IP

l.root-servers.net

199.7.83.42

AS20144

Anycast IP

2001:500:9f::42

AS20144

Anycast IP

m.root-servers.net

202.12.27.33

AS7500

Anycast IP

2001:dc3::35

AS7500

Anycast IP

all servers delegate to

com.

These servers manage the com zone

a.gtld-servers.net

192.5.6.30

AS396549

Anycast IP

2001:503:a83e::2:30

AS396549

Anycast IP

b.gtld-servers.net

192.33.14.30

AS396661

Anycast IP

2001:503:231d::2:30

AS396654

Anycast IP

c.gtld-servers.net

192.26.92.30

AS396549

Anycast IP

2001:503:83eb::30

AS396549

Anycast IP

d.gtld-servers.net

192.31.80.30

AS396549

Anycast IP

2001:500:856e::30

AS396549

Anycast IP

e.gtld-servers.net

192.12.94.30

AS396549

Anycast IP

2001:502:1ca1::30

AS396549

Anycast IP

f.gtld-servers.net

192.35.51.30

AS397197

Anycast IP

2001:503:d414::30

AS397197

Anycast IP

g.gtld-servers.net

192.42.93.30

AS397197

Anycast IP

2001:503:eea3::30

AS397197

Anycast IP

h.gtld-servers.net

192.54.112.30

AS397197

Anycast IP

2001:502:8cc::30

AS397197

Anycast IP

i.gtld-servers.net

192.43.172.30

AS397197

Anycast IP

2001:503:39c1::30

AS397197

Anycast IP

j.gtld-servers.net

192.48.79.30

AS396566

Anycast IP

2001:502:7094::30

AS19836

Anycast IP

k.gtld-servers.net

192.52.178.30

AS396566

Anycast IP

2001:503:d2d::30

AS19836

Anycast IP

l.gtld-servers.net

192.41.162.30

AS396566

Anycast IP

2001:500:d937::30

AS19836

Anycast IP

m.gtld-servers.net

192.55.83.30

AS396566

Anycast IP

2001:501:b1f9::30

AS19836

Anycast IP

all servers delegate to

21vianet.com.

These servers manage the 21vianet.com zone

vip3.alidns.com

121.40.6.163

AS37963

China

140.205.1.5

AS45102

Anycast IP

170.33.32.210

AS45102

Germany

170.33.40.136

AS134963

Malaysia

170.33.73.26

AS45102

United States of America

170.33.80.10

AS45102

Japan

2408:4009:500::3

AS45102

Anycast IP

39.103.26.212

AS37963

China

47.116.84.178

AS37963

China

8.129.152.245

AS37963

China

8.212.93.3

AS134963

Hong Kong

vip4.alidns.com

121.40.6.164

AS37963

China

140.205.1.6

AS45102

Anycast IP

170.33.32.211

AS45102

Germany

170.33.40.137

AS134963

Malaysia

170.33.73.27

AS45102

United States of America

170.33.80.11

AS45102

Japan

2408:4009:500::4

AS45102

Anycast IP

39.103.26.213

AS37963

China

47.116.84.179

AS37963

China

8.129.152.246

AS37963

China

8.212.93.4

AS134963

Hong Kong

These servers claim authority over the 21vianet.com zone, which contains smtp.21vianet.com