ktc.ac.jp - robtex.com

ktc.ac.jp

DNSSEC⚠️ Not signed
A219.94.129.109🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww1099.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan
PTRns2.dns.ne.jp
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c03::1b🇺🇸 Google2607:f8b0::/32
PTRdy-in-f27.1e100.net
A74.125.137.27🇺🇸 Google74.125.137.0/24
PTRdy-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4001:c70::1b🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f27.1e100.net
A192.178.209.27🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f27.1e100.net
MXktc.ac.jp(10)
A219.94.129.109🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRwww1099.sakura.ne.jp
TXTv=spf1 a:www1099.sakura.ne.jp mx ~all
TXTMS=4258547AFE699319A4AD4B1E2964945DCF085952
TXTapple-domain-verification=f6tl9itI7Vp0PkvU
SOAmaster.dns.ne.jptech@sakura.ad.jp 2024-05-21 #21

ac.jp

DNSSEC⚠️ Not signed
TXTac.jp.
WOT: SAFE (80/100)

MX for

ktc.ac.jp

Subdomains

www.ktc.ac.jp

Same first word

ktc.cz
ktc.ru
ktc.bz
ktc.cn
ktc.biz
ktc.hr
ktc.me.uk
ktc.com.cn
ktc.rovno.ua
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ktc.nsw.edu.au
ktc.ac.tz
ktc.com.tw
ktc.co.il
ktc.rs
ktc.dk
ktc.me
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ktc.ch
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ktc.plus
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ktc.it
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ktc.net.kw
ktc.lt
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ktc.gmbh
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ktc.pl
ktc.email
ktc.in
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ktc.tools
ktc.com.au
ktc.cc
ktc.nl
ktc.jp
ktc.re.kr
ktc.com.vn
ktc.org.my
ktc.co.uk
ktc.co.jp
ktc.ac.th

Similar names

kct.cz
tkc.wa.edu.au
tkc.ie
tck.co.uk
ctk.net.cn
ctk.in
tkc.ch
tck.com.ua
ckt.com.au
ctk.es
tkc.deals
kct.net.ua
kct.co.id
ckt.com.tw
tck.us
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ckt.cn
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ckt.jp
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tck.email
ctk.co.jp
tkc.co.at
ckt.fi
tkc.net
tkc.com.tw
ctk.se
kct.cl
ckt.info
tck.net
ctk.by
ctk.it
ctk.de
tck.gg
kct.com.tr
kct.org.uk
kct.s3.amazonaws.com
kct.kz
ckt.it
tck.fr
tck.ro
kct.com
tkc.go.th
ckt.idv.hk
ckt.net
tkc.de
ctk.ne.kr
kct.ch
tkc.in
tkc.cc
kct.co.uk
ctk.fr
ctk.me
tck.org.tr
tkc.org.uk
tck.jp
ctk.jp
kct.co
tck.co.jp
tkc.fi
tck.link
tck.me
kct.jp
ctk.com
ctk.school.nz
tkc.us
ctk.blue
tkc.edu
ckt.legal
tck.be
tck.work
kct.ac.in
ctk.cn
kct.mobi
kct.es
ctk.world
ctk.sk

DNS History

21 records (10 active, 11 former)

201020122014201620182020202220242026NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpns-tk023.ocn.ad.jpns.ktc.ac.jpns6-tk01.ocn.ad.jpns6-tk02.ocn.ad.jpMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comktc.ac.jp4258547afe699319a4ad4b1e2964945dcf085952.msv1.invalid.ktc.ac.jpaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.commail.ktc.ac.jpA219.94.129.10961.199.219.18
●NSmaster.dns.ne.jp2026-03-27 → 2026-05-14 · 3 obs
○ 2016-12-23 08:59:30
● 2026-03-27 12:44:50
● 2026-05-14 15:09:20
○NSns-tk023.ocn.ad.jp2009-01-13 → 2015-11-13 · 4 obs
● 2009-01-13 01:38:20
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
○ 2026-05-14 15:09:20
○NSns.ktc.ac.jp2009-01-13 → 2016-12-23 · 6 obs
● 2009-01-13 01:38:20
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
● 2016-12-23 08:59:30
○ 2026-03-27 12:44:50
○ 2026-05-14 15:09:20
●NSns1.dns.ne.jp2026-03-27 → 2026-05-14 · 3 obs
○ 2016-12-23 08:59:30
● 2026-03-27 12:44:50
● 2026-05-14 15:09:20
●NSns2.dns.ne.jp2026-03-27 → 2026-05-14 · 3 obs
○ 2016-12-23 08:59:30
● 2026-03-27 12:44:50
● 2026-05-14 15:09:20
○NSns6-tk01.ocn.ad.jp2015-12-11 → 2016-12-23 · 5 obs
○ 2015-11-13 03:38:58
● 2015-12-11 17:59:56
● 2016-12-23 08:59:30
○ 2026-03-27 12:44:50
○ 2026-05-14 15:09:20
○NSns6-tk02.ocn.ad.jp2015-12-11 → 2016-12-23 · 5 obs
○ 2015-11-13 03:38:58
● 2015-12-11 17:59:56
● 2016-12-23 08:59:30
○ 2026-03-27 12:44:50
○ 2026-05-14 15:09:20
○MX4258547afe699319a4ad4b1e2964945dcf085952.msv1.invalid.ktc.ac.jp2016-12-23 → 2016-12-23 · 4 obs
○ 2015-12-11 17:59:56
● 2016-12-23 08:59:30
○ 2026-03-27 12:44:50
○ 2026-05-14 15:09:20
●MXalt1.aspmx.l.google.com2015-08-04 → 2026-05-14 · 3 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2026-05-14 15:09:20
●MXalt2.aspmx.l.google.com2015-08-04 → 2026-05-14 · 3 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2026-05-14 15:09:20
●MXalt3.aspmx.l.google.com2015-12-11 → 2026-05-14 · 3 obs
○ 2015-11-13 03:38:58
● 2015-12-11 17:59:56
● 2026-05-14 15:09:20
●MXalt4.aspmx.l.google.com2015-12-11 → 2026-05-14 · 3 obs
○ 2015-11-13 03:38:58
● 2015-12-11 17:59:56
● 2026-05-14 15:09:20
●MXaspmx.l.google.com2015-08-04 → 2026-05-14 · 3 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2026-05-14 15:09:20
○MXaspmx2.googlemail.com2015-08-04 → 2015-11-13 · 5 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
○ 2026-05-14 15:09:20
○MXaspmx3.googlemail.com2015-08-04 → 2015-11-13 · 5 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
○ 2026-05-14 15:09:20
○MXaspmx4.googlemail.com2015-08-04 → 2015-11-13 · 5 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
○ 2026-05-14 15:09:20
○MXaspmx5.googlemail.com2015-08-04 → 2015-11-13 · 5 obs
○ 2009-01-13 01:38:20
● 2015-08-04 11:57:14
● 2015-11-13 03:38:58
○ 2015-12-11 17:59:56
○ 2026-05-14 15:09:20
●MXktc.ac.jp2026-03-27 → 2026-05-14 · 3 obs
○ 2016-12-23 08:59:30
● 2026-03-27 12:44:50
● 2026-05-14 15:09:20
○MXmail.ktc.ac.jp2009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 01:38:20
○ 2015-08-04 11:57:14
○ 2026-05-14 15:09:20
●A219.94.129.1092026-03-27 → 2026-05-14 · 3 obs
○ 2015-08-04 11:57:14
● 2026-03-27 12:44:50
● 2026-05-14 15:09:20
○A61.199.219.182009-01-13 → 2009-01-13 · 3 obs
● 2009-01-13 01:38:20
○ 2015-08-04 11:57:14
○ 2026-05-14 15:09:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
ktc.ac.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ktc.ac.jp (unsigned zone)

⏱️ Timing

Total: 1271ms | Queries: -

📄 Records

TypeCountSample Data
A1219.94.129.109
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX6ktc.ac.jp (pri: 10), aspmx.l.google.com (pri: 1)...
TXT3v=spf1 a:www1099.sakura.ne.jp mx ~all, MS=4258547AFE699319A4AD4B1E2964945DCF085...
SOA1master.dns.ne.jp tech.sakura.ad.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Hierarchy

www.ktc.ac.jp is a child of ktc.ac.jp.

Mail Server Role

ktc.ac.jp serves as the mail server for ktc.ac.jp.

aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are commonly used as mail servers together with ktc.ac.jp.

IP Addresses

ktc.ac.jp resolves to one IP number: 219.94.129.109.

Other host names, for instance zone-s.net, ntech-co.com, daigakutosho-gr.co.jp, www1099.sakura.ne.jp and chronocenter.com share IP numbers with ktc.ac.jp.

Name Servers

ktc.ac.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

ktc.ac.jp at least partially shares name servers with other domains, including hashi-d.jp, eiyoushi-tensyoku.com, gjm.sakura.ne.jp, retire-agent.com and sugitomo.com.

These name servers are commonly used with dns.sakura.ad.jp.

Host names with a single IP:

master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

Six mail servers handle ktc.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.

ktc.ac.jp shares at least some mail servers with other domains, for example ns500693.ns500765.ns500693.ns500699.ns500693.ns500699.ns500699.ns500699.ns500693.ns500699.ns500699.ns500683.ns500632.ns500602.dtrkdll.com, skookumshellfish.com, koreatowngalleria.com, ns500731.ns500731.ns500742.ns500731.ns500671.ns500704.ns500704.ns500671.ns500704.ns500291.ns500649.ns500666.tenderladiesbz.com and ns500731.ns500671.ns500731.ns500704.ns500731.ns500705.ns500671.ns500649.ns500649.ns500678.ns500291.ns500131.lustychickser.com.

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

Two IPs per host:

aspmx.l.google.com points to: 2607:f8b0:4023:c03::1b and 74.125.137.27.

alt1.aspmx.l.google.com points to: 2607:f8b0:4023:2801::1a and 192.178.128.27.

alt2.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1b and 172.253.145.27.

alt3.aspmx.l.google.com points to: 2a00:1450:4009:c0f::1b and 192.178.223.26.

alt4.aspmx.l.google.com points to: 2607:f8b0:4001:c70::1b and 192.178.209.27.

One IP per host:

ktc.ac.jp points to: 219.94.129.109.