_spf0.adst.keio.ac.jp DNS trace

Root zone

These servers manage the DNS root zone

a.root-servers.net
AS396549
AS396549
b.root-servers.net
AS394353
AS394353
c.root-servers.net
AS2149
AS2149
d.root-servers.net
AS10886
AS10886
e.root-servers.net
AS21556
AS21556
f.root-servers.net
AS3557
AS3557
g.root-servers.net
AS5927
AS5927
h.root-servers.net
AS1508
AS1508
i.root-servers.net
AS29216
AS29216
j.root-servers.net
AS396661
AS396661
k.root-servers.net
AS25152
AS25152
l.root-servers.net
AS20144
AS20144
m.root-servers.net
AS7500
AS7500
all servers delegate to

jp.

These servers manage the jp zone

a.dns.jp
AS23774
AS23774
b.dns.jp
AS2515
AS2515
c.dns.jp
AS12008
AS12008
d.dns.jp
AS2497
AS2497
e.dns.jp
AS23634
AS23634
f.dns.jp
AS2907
AS2907
g.dns.jp
AS24252
h.dns.jp
AS12041
AS12041
all servers delegate to

keio.ac.jp.

These servers manage the keio.ac.jp zone

a1-123.akam.net
a14-66.akam.net
a26-67.akam.net
a3-64.akam.net
a4-65.akam.net
a5-66.akam.net
all servers delegate to

adst.keio.ac.jp.

These servers manage the adst.keio.ac.jp zone

ns0.keio.ac.jp
AS38635
AS38635
ns0.sfc.keio.ac.jp
AS38635
AS38635
ns1.adst.keio.ac.jp
AS38635
ns1.keio.ac.jp
AS38635
AS38635
ns9.keio.ac.jp
AS9371
AS9371

These servers claim authority over the adst.keio.ac.jp zone, which contains _spf0.adst.keio.ac.jp