sg-u.jp - robtex.com

sg-u.jp

DNSSEC⚠️ Not signed
A202.230.232.57🇯🇵 IDC202.230.232.0/23 Frontier Inc.
PTRvps232057.vz3.domainserver.ne.jp
NSns04.domainserver.ne.jp ⭐
A52.198.169.240🇯🇵 Amazon52.196.0.0/14 EC2 NRT prefix
PTRec2-52-198-169-240.ap-northeast-1.compute.amazonaws.com
NSns03.domainserver.ne.jp
A103.241.128.14🇯🇵 IDC103.241.128.0/22 RIDE Co.,Ltd.
PTRns03.domainserver.ne.jp
MXmail.sg-u.jp ⭐
A202.230.232.57🇯🇵 IDC202.230.232.0/23 Frontier Inc.
PTRvps232057.vz3.domainserver.ne.jp
TXTv=spf1 +a +mx include:_spf.domainserver.ne.jp +a:mxjp1.nospamcloud.com +a:mxj...
SOAns04.domainserver.ne.jprs-tech@radix.ad.jp 2025-07-02 #1

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1774720802

Previously MX for

sg-u.jp

Subdomains

mail.sg-u.jp

Same first word

sg-u.ac.jp
sg-u.jp

Similar names

us-g.com
u-sg.com
s-gu.com
g-us.com
su-g.com
s-ug.net
u-gs.de
gu-s.com
s-ug.ru
ug-s.com
u-gs.com
g-su.com
ug-s.net
u-gs.ru

DNS History

11 records (4 active, 7 former)

20162017201820192020202120222023202420252026NSns03.domainserver.ne.jpns04.domainserver.ne.jpns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpMXmail.sg-u.jpsg-u.jpA202.230.232.57219.94.203.58
●NSns03.domainserver.ne.jp2026-02-16 → 2026-03-28 · 3 obs
○ 2018-07-09 18:40:36
● 2026-02-16 00:46:38
● 2026-03-28 18:34:26
●NSns04.domainserver.ne.jp2026-02-16 → 2026-03-28 · 3 obs
○ 2018-07-09 18:40:36
● 2026-02-16 00:46:38
● 2026-03-28 18:34:26
○NSns1.xserver.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
○NSns2.xserver.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
○NSns3.xserver.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
○NSns4.xserver.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
○NSns5.xserver.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
●MXmail.sg-u.jp2026-02-16 → 2026-03-28 · 3 obs
○ 2018-07-09 18:40:36
● 2026-02-16 00:46:38
● 2026-03-28 18:34:26
○MXsg-u.jp2015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26
●A202.230.232.572026-02-16 → 2026-03-28 · 3 obs
○ 2018-07-09 18:40:36
● 2026-02-16 00:46:38
● 2026-03-28 18:34:26
○A219.94.203.582015-08-17 → 2018-07-09 · 4 obs
● 2015-08-17 11:19:26
● 2018-07-09 18:40:36
○ 2026-02-16 00:46:38
○ 2026-03-28 18:34:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpc.dns.jp, a.dns.jp, e.dns.jp, f.dns.jp...-
sg-u.jpns03.domainserver.ne.jp, ns04.domainserver.ne.jp-

✅ Authoritative Response

Server:52.198.169.240

NS records: ns03.domainserver.ne.jp, ns04.domainserver.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sg-u.jp (unsigned zone)

⏱️ Timing

Total: 1038ms | Queries: -

📄 Records

TypeCountSample Data
A1202.230.232.57
NS2ns04.domainserver.ne.jp, ns03.domainserver.ne.jp
MX1mail.sg-u.jp (pri: 30)
TXT1v=spf1 +a +mx include:_spf.domainserver.
SOA1ns04.domainserver.ne.jp rs-tech.radix.ad

Analysis

Hierarchy

sg-u.jp is the parent of mail.sg-u.jp.

IP Addresses

sg-u.jp resolves to a single IP address: 202.230.232.57.

Other host names, such as vps232057.vz3.domainserver.ne.jp and mail.sg-u.jp, share IP numbers with sg-u.jp.

Name Servers

sg-u.jp's delegation uses two name servers, ns03.domainserver.ne.jp and ns04.domainserver.ne.jp.

sg-u.jp shares the same name server setup as other domains, for example mkk-tokyo.com, co2.co.jp, oizumi.gr.jp, boxing.co.jp and sunlife-home.co.jp.

sg-u.jp partially shares its name servers with other domains, for example ksbee.jp and jmacs.jp.

Host names with a single IP:

ns03.domainserver.ne.jp points to 103.241.128.14.

ns04.domainserver.ne.jp points to 52.198.169.240.

Mail Servers

sg-u.jp is handled by a single mail server, mail.sg-u.jp.

mail.sg-u.jp points to a single IP: 202.230.232.57.