sv.at21.jp - robtex.com

sv.at21.jp

DNSSEC⚠️ Not signed
A211.133.244.65🇯🇵 IDC211.133.240.0/21 Frontier Inc.

at21.jp

DNSSEC⚠️ Not signed
A211.133.244.65🇯🇵 IDC211.133.240.0/21 Frontier Inc.
NSsv.at21.jp ⭐
NSdns.itecjapan.jp
NSsv1.itecjapan.ne.jp
NSsv3.itecjapan.ne.jp
MXat21-jp.mail.protection.outlook.com ⭐
TXTv=spf1 ip4:211.133.244.65 include:spf.protection.outlook.com ip4:13.115.94.33...
TXTgoogle-site-verification=Mh-oBvMQ3HDP5ErV9Zhbth3JKz-L8CGx_p9sBjP8da0
TXTMS=ms11185639
SOAsv.at21.jppostmaster@at21.jp 2026-03-19 #1

PTR for

65.0/25.244.133.211.in-addr.arpa

NS for

at21.jp

Same first word

sv.com.tr
sv.nl
sv.se
sv.ms
sv.co.ua
sv.com.ua
sv.com.au
sv.cz
sv.lv
sv.tc
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sv.de
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sv.ws
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sv
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sv.edgesuite.net
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sv.or.at
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Similar names

vs.edu
vs.com.sg
vs.dk
vs.ma
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vs.co.id
vs.hk
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vs.co.at
vs.gov.mo
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vs.cool
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vs.fyi
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vs.se
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vs.tv
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vs.services
vs.vc
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vs.ro
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vs.immo
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vs.si
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vs.lt
vs.co.th
vs.ch
vs.shoes
vs.lk
vs.city
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vs.world
vs.sk
vs.no
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vs.hn
vs.wtf
vs.dev
vs.com.ua
vs.org
vs.lv
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vs.tel
vs.pl
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vs.com.pk
vs.spdns.de
vs.gr
vs.rs
vs.cc
vs.de
vs.kr.ua
vs.com.pl
vs.wine
vs.sg
vs.com.cn
vs.cl

DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A211.133.244.6561.206.41.61
●A211.133.244.652026-02-17 → 2026-03-29 · 3 obs
○ 2016-05-06 07:52:38
● 2026-02-17 14:48:20
● 2026-03-29 07:08:24
○A61.206.41.612015-07-22 → 2016-05-06 · 4 obs
● 2015-07-22 13:58:22
● 2016-05-06 07:52:38
○ 2026-02-17 14:48:20
○ 2026-03-29 07:08:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
at21.jpsv1.itecjapan.ne.jp, sv3.itecjapan.ne.jp, dns.itecjapan.jp4 records

✅ Authoritative Response

Server:202.241.202.253

NS records: sv1.itecjapan.ne.jp, sv3.itecjapan.ne.jp, dns.itecjapan.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for at21.jp (unsigned zone)

⏱️ Timing

Total: 732ms | Queries: -

📄 Records

TypeCountSample Data
A1211.133.244.65

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns.itecjapan.jp, sv1.itecjapan.ne.jp, sv3.itecjapan.ne.jp...)

Analysis

Name Server Role

sv.at21.jp serves as the name server for at21.jp.

dns.itecjapan.jp, sv1.itecjapan.ne.jp and sv3.itecjapan.ne.jp commonly serve as nameservers together with sv.at21.jp.

IP Addresses

sv.at21.jp points to a single IP number: 211.133.244.65.

Other host names, for instance at21.jp, share IP numbers with sv.at21.jp.