CF1761749591426-tsm20251027103946

WWW.RTSAK.COM - flet.keio.ac.jp

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flet.keio.ac.jp checked at 2025-10-29T14:53:11.387Z 1024ms 94/94/94 100% R:18

flet.keio.ac.jp

NSns0.keio.ac.jp
A2001:df0:eb:e14::3 🇯🇵 KEIO-NET
PTRns0.keio.ac.jp
A131.113.132.3🇯🇵 KEIO-NET
PTRns0.keio.ac.jp
NSns1.keio.ac.jp
A2001:df0:eb:e14::4 🇯🇵 KEIO-NET
PTRns1.keio.ac.jp
A131.113.132.4🇯🇵 KEIO-NET
PTRns1.keio.ac.jp
NSns9.keio.ac.jp
A2403:3a00:202:190a:133:167:67:76 🇯🇵 SAKURA-C
PTRns9.keio.ac.jp
A133.167.67.76🇯🇵 SAKURA-C
PTRns9.keio.ac.jp
MXmx0.mita.keio.ac.jp
A2001:df0:eb:2106::180 🇯🇵 KEIO-NET
PTRmx0.mita.keio.ac.jp
A131.113.192.180🇯🇵 KEIO-NET
PTRmx0.mita.keio.ac.jp
MXmx1.mita.keio.ac.jp
A2001:df0:eb:2106::181 🇯🇵 KEIO-NET
PTRmx1.mita.keio.ac.jp
A131.113.192.181🇯🇵 KEIO-NET
PTRmx1.mita.keio.ac.jp

keio.ac.jp

NSa1-123.akam.net
NSa14-66.akam.net
NSa26-67.akam.net
NSa3-64.akam.net
NSa4-65.akam.net
NSa5-66.akam.net
MXvmx2.m0.keio.ac.jp
A2001:df0:eb:e0f:131:113:131:113 🇯🇵 KEIO-NET
A131.113.131.113🇯🇵 KEIO-NET
rank #3657 globally
rank #55 in the tld
This domain name represents Keio University, a private, comprehensive higher education institution located in Minato, Tokyo, Japan. It is one of the oldest and most prestigious universities in Japan, known for its globally recognized research and academic programs. The ".ac.jp" indicates that it is an academic institution in Japan.

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AI analysis

flet.keio.ac.jp is the parent of www.flet.keio.ac.jp, characin.flet.keio.ac.jp, fs0.flet.keio.ac.jp, psy.flet.keio.ac.jp, baroco2.flet.keio.ac.jp and a few other host names.

flet.keio.ac.jp is delegated to three name servers ns0.keio.ac.jp, ns1.keio.ac.jp and ns9.keio.ac.jp.

flet.keio.ac.jp at least partially shares name servers with other domains, for instance 135.113.131.in-addr.arpa, user.keio.ac.jp, 216.113.131.in-addr.arpa, ayu.ics.keio.ac.jp and 69.113.131.in-addr.arpa.

these name servers are often used together with ns0.sfc.keio.ac.jp, ns01.sfc.keio.ac.jp, ns02.sfc.keio.ac.jp and ns1.am.ics.keio.ac.jp.

Host names with two IP numbers:

ns0.keio.ac.jp points to: 2001:df0:eb:e14::3 and 131.113.132.3.

ns1.keio.ac.jp points to: 2001:df0:eb:e14::4 and 131.113.132.4.

ns9.keio.ac.jp points to: 2403:3a00:202:190a:133:167:67:76 and 133.167.67.76.

Two mail servers handle flet.keio.ac.jp: mx0.mita.keio.ac.jp and mx1.mita.keio.ac.jp.

flet.keio.ac.jp shares the same mail server setup as other domains, for instance fmc.keio.ac.jp, icl.keio.ac.jp, kgc.keio.ac.jp, econ.keio.ac.jp and fs0.law.keio.ac.jp.

Host names with two IP numbers:

The host name mx0.mita.keio.ac.jp points to 2001:df0:eb:2106::180 and 131.113.192.180; the host name mx1.mita.keio.ac.jp points to 2001:df0:eb:2106::181 and 131.113.192.181.

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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amhyjSS CF johedugfp 2025-10-29