CF1763493829825-tsm20251116095642

WWW.RTSAK.COM - ud.t.u-tokyo.ac.jp

Search for IP or hostnames:

ud.t.u-tokyo.ac.jp checked at 2025-11-18T19:23:49.707Z 1375ms 85/85/85 100% R:12 allDone:true timedOut:false

ud.t.u-tokyo.ac.jp

MXaspmx.l.google.com
A2607:f8b0:4004:c21::1b 🇺🇸 Google
PTRpe-in-f27.1e100.net
A172.253.115.26🇺🇸 Google
PTRbg-in-f26.1e100.net
MXalt1.aspmx.l.google.com
A2a00:1450:400b:c02::1a 🇮🇪 Google
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google
PTRdj-in-f26.1e100.net
MXalt2.aspmx.l.google.com
A2a00:1450:400c:c00::1b 🇧🇪 Google
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.26🇺🇸 Google
PTRws-in-f26.1e100.net
MXalt3.aspmx.l.google.com
A2a00:1450:4025:402::1b 🇳🇱 Google
PTRrb-in-f27.1e100.net
A142.250.102.26🇺🇸 Google
PTRrb-in-f26.1e100.net
MXalt4.aspmx.l.google.com
A2a00:1450:4013:c1e::1a 🇳🇱 Google
PTRyugrqzs-in-f26.1e100.net
A192.178.213.27🇺🇸 Google
PTRyugrqzs-in-f27.1e100.net
A210.224.185.157🇯🇵 SAKURA-C
PTRwww2517.sakura.ne.jp

t.u-tokyo.ac.jp

MXitc-utokyo.in.tmems-jp.trendmicro.com
NSdns1.nc.u-tokyo.ac.jp
NSdns2.nc.u-tokyo.ac.jp
NSdns3.nc.u-tokyo.ac.jp
NSns1.t.u-tokyo.ac.jp
MXt-server2.t.u-tokyo.ac.jp

Starts with same word

Starts similarily

AI analysis

ud.t.u-tokyo.ac.jp points to IP number: 210.224.185.157.

Other host names such as brison.co.jp, tnnetwork.net, com-web.jp, bright-son.com and smile-l.com share IPs with ud.t.u-tokyo.ac.jp.

Five mail servers handle ud.t.u-tokyo.ac.jp: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

ud.t.u-tokyo.ac.jp shares at least partially some mail servers with other domains, including ingberg.se, cbwmh.ca, brightfreak.com, smilenuts.com and crimebloc.io.

these mail servers are often used together with mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

Hostname aspmx.l.google.com points to 2607:f8b0:4004:c21::1b and 172.253.115.26.

Hostname alt1.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.26.

Hostname alt2.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.26.

Hostname alt3.aspmx.l.google.com points to 2a00:1450:4025:402::1b and 142.250.102.26.

Hostname alt4.aspmx.l.google.com points to 2a00:1450:4013:c1e::1a and 192.178.213.27.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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