csunnet.co.jp - robtex.com

csunnet.co.jp

DNSSEC🔒 Signed (DS record present)
NSns000.d-53.net ⭐
NSns014-h4vemrig4lshru38.h.d-53.info
A2001:240:bb81::28:45🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs014.d-53.biz
A202.32.219.45🇯🇵 IIJ-AS202.32.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs014.d-53.biz
NSns014-h4vemrig4lshru38.h.d-53.jp
A2001:240:bb81::29:1105🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs014.d-53.org
A203.180.146.105🇯🇵 IIJ-AS203.180.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs014.d-53.org
NSns014-h4vemrig4lshru38.h.d-53.net
A2001:240:bb81::29:105🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 )
PTRs014.d-53.net
A210.138.20.105🇯🇵 IIJ-AS210.138.0.0/16 IIJ IPv4 BLOCK ( AS2497 )
PTRs014.d-53.net
MXcsunnet-co-jp.mail.protection.outlook.com ⭐
A2a01:111:f403:cc1a::2🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00302.inbound.protection.outlook.com
A2a01:111:f403:cc1a::3🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-tyvp286cu00203.inbound.protection.outlook.com
A2a01:111:f403:cc1f::🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os9p286cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::1🇯🇵 Microsoft2a01:111:f000::/36
PTRmail-os0p286cu01201.inbound.protection.outlook.com
A52.101.124.1🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ty3p286cu00101.inbound.protection.outlook.com
A52.101.124.6🇯🇵 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tyvp286cu00206.inbound.protection.outlook.com
A52.101.157.10🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os0p286cu01302.inbound.protection.outlook.com
A52.101.157.40🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os9p286cu00100.inbound.protection.outlook.com
TXTv=spf1 include:spfcm.cybermail.jp include:spf.protection.outlook.com include...
TXTMS=57FEDF0E75A84458763C033BD2C3AF6C0BAFFDD4
TXTgoogle-site-verification=JmmARdf6aIeMTtvm0KJIzHDxW0h0d5et4ctq_6y4tV0
SOAns000.d-53.netdns-managers@iij.ad.jp serial=350

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (65/100)
WOT: SAFE (58/100)

Subdomains

emgate.csunnet.co.jp
ps1.csunnet.co.jp

Same first word

csunnet.co.jp
csunnet.com

Similar names

suncent.com
nuntesc.ro
suncent.net
suncent.com.cn
suncent.biz
sunntec.net
nuscent.com

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NSns000.d-53.netns014-h4vemrig4lshru38.h.d-53.infons014-h4vemrig4lshru38.h.d-53.jpns014-h4vemrig4lshru38.h.d-53.netdns-b.iij.ad.jpdns-c.iij.ad.jpMXcsunnet-co-jp.mail.protection.outlook.comemgate.csunnet.co.jp
○NSdns-b.iij.ad.jp2015-07-23 → 2016-11-30 · 4 obs
● 2015-07-23 18:55:56
● 2016-11-30 03:31:28
○ 2026-03-29 21:41:10
○ 2026-04-20 10:59:36
○NSdns-c.iij.ad.jp2015-07-23 → 2016-11-30 · 4 obs
● 2015-07-23 18:55:56
● 2016-11-30 03:31:28
○ 2026-03-29 21:41:10
○ 2026-04-20 10:59:36
●NSns000.d-53.net2026-03-29 → 2026-04-20 · 3 obs
○ 2016-11-30 03:31:28
● 2026-03-29 21:41:10
● 2026-04-20 10:59:36
●NSns014-h4vemrig4lshru38.h.d-53.info2026-03-29 → 2026-04-20 · 3 obs
○ 2016-11-30 03:31:28
● 2026-03-29 21:41:10
● 2026-04-20 10:59:36
●NSns014-h4vemrig4lshru38.h.d-53.jp2026-03-29 → 2026-04-20 · 3 obs
○ 2016-11-30 03:31:28
● 2026-03-29 21:41:10
● 2026-04-20 10:59:36
●NSns014-h4vemrig4lshru38.h.d-53.net2026-03-29 → 2026-04-20 · 3 obs
○ 2016-11-30 03:31:28
● 2026-03-29 21:41:10
● 2026-04-20 10:59:36
●MXcsunnet-co-jp.mail.protection.outlook.com2026-03-29 → 2026-04-20 · 3 obs
○ 2016-11-30 03:31:28
● 2026-03-29 21:41:10
● 2026-04-20 10:59:36
○MXemgate.csunnet.co.jp2015-07-23 → 2016-11-30 · 4 obs
● 2015-07-23 18:55:56
● 2016-11-30 03:31:28
○ 2026-03-29 21:41:10
○ 2026-04-20 10:59:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
csunnet.co.jpns014-h4vemrig4lshru38.h.d-53.jp, ns014-h4vemrig4lshru38.h.d-53.info, ns014-h4vemrig4lshru38.h.d-53.net-

✅ Authoritative Response

Server:203.180.146.105

NS records: ns014-h4vemrig4lshru38.h.d-53.jp, ns014-h4vemrig4lshru38.h.d-53.info, ns014-h4vemrig4lshru38.h.d-53.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1360ms | Queries: -

📄 Records

TypeCountSample Data
NS3ns014-h4vemrig4lshru38.h.d-53.info, ns014-h4vemrig4lshru38.h.d-53.jp...
MX1csunnet-co-jp.mail.protection.outlook.co
TXT3v=spf1 include:spfcm.cybermail.jp includ, MS=57FEDF0E75A84458763C033BD2C3AF6C0BAFF...
SOA1ns000.d-53.net dns-managers.iij.ad.jp

Analysis

Hierarchy

csunnet.co.jp is a parent of emgate.csunnet.co.jp and ps1.csunnet.co.jp.

Name Servers

csunnet.co.jp delegates to four name servers: ns000.d-53.net, ns014-h4vemrig4lshru38.h.d-53.info, ns014-h4vemrig4lshru38.h.d-53.jp and ns014-h4vemrig4lshru38.h.d-53.net.

csunnet.co.jp at least partially shares name servers with other domains, including yamaha-motor.com.sg, edojo.jp, d.d-53.jp, iprimo.jp and yasuda-re.co.jp.

these name servers are commonly used with dns-b.iij.ad.jp, dns-c.iij.ad.jp, rev.iij-dns.jp, rev.iij-dns.net, ns01.iij-dns.jp, ns00.iij-dns.net, ns.iij-dns.biz, ns.iij-dns.jp and ns.iij-dns.net.

Host names with two IP numbers:

ns014-h4vemrig4lshru38.h.d-53.info: 2001:240:bb81::28:45 and 202.32.219.45

ns014-h4vemrig4lshru38.h.d-53.jp: 2001:240:bb81::29:1105 and 203.180.146.105

ns014-h4vemrig4lshru38.h.d-53.net: 2001:240:bb81::29:105 and 210.138.20.105

Mail Servers

A single mail server handles csunnet.co.jp, csunnet-co-jp.mail.protection.outlook.com.

Host csunnet-co-jp.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:cc1a::2, 2a01:111:f403:cc1a::3, 2a01:111:f403:cc1f::, 2a01:111:f403:cc1f::1, 52.101.124.1, 52.101.124.6, 52.101.157.10 and 52.101.157.40.