office-tsuda.com - robtex.com

office-tsuda.com

DNSSEC⚠️ Not signed
A157.7.189.252🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRusers282.vip.heteml.jp
NSdns0.heteml.jp ⭐
A157.7.44.53🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns510.heteml.jp
NSdns1.heteml.jp
A157.7.188.149🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRdns711.phy.heteml.jp
MXmx.hetemail.jp ⭐
A157.7.189.1🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan
PTRmx.heteml.jp
TXTv=spf1 include:_spf.heteml.jp ~all
SOAdns0.heteml.jphostmaster@office-tsuda.com serial=1778337618

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778336556

Subdomains

mail.office-tsuda.com

Same first word

office-tsuda.com

DNS History

12 records (4 active, 8 former)

2008201020122014201620182020202220242026NSdns0.heteml.jpdns1.heteml.jpdns1.ymc.ne.jpdns2.ymc.ne.jpns.regina.ne.jpns2.regina.ne.jpMXmx.hetemail.jphs.regina.ne.jpmail.office-tsuda.comA157.7.189.252210.155.103.164211.16.230.165
●NSdns0.heteml.jp2026-04-10 → 2026-05-09 · 3 obs
○ 2017-03-14 09:10:04
● 2026-04-10 11:19:02
● 2026-05-09 14:44:06
●NSdns1.heteml.jp2026-04-10 → 2026-05-09 · 3 obs
○ 2017-03-14 09:10:04
● 2026-04-10 11:19:02
● 2026-05-09 14:44:06
○NSdns1.ymc.ne.jp2015-05-20 → 2017-03-14 · 5 obs
○ 2007-08-23 00:56:36
● 2015-05-20 19:42:02
● 2017-03-14 09:10:04
○ 2026-04-10 11:19:02
○ 2026-05-09 14:44:06
○NSdns2.ymc.ne.jp2015-05-20 → 2017-03-14 · 5 obs
○ 2007-08-23 00:56:36
● 2015-05-20 19:42:02
● 2017-03-14 09:10:04
○ 2026-04-10 11:19:02
○ 2026-05-09 14:44:06
○NSns.regina.ne.jp2007-08-23 → 2007-08-23 · 3 obs
● 2007-08-23 00:56:36
○ 2015-05-20 19:42:02
○ 2026-05-09 14:44:06
○NSns2.regina.ne.jp2007-08-23 → 2007-08-23 · 3 obs
● 2007-08-23 00:56:36
○ 2015-05-20 19:42:02
○ 2026-05-09 14:44:06
○MXhs.regina.ne.jp2007-08-23 → 2007-08-23 · 3 obs
● 2007-08-23 00:56:36
○ 2015-05-20 19:42:02
○ 2026-05-09 14:44:06
○MXmail.office-tsuda.com2015-05-20 → 2017-03-14 · 5 obs
○ 2007-08-23 00:56:36
● 2015-05-20 19:42:02
● 2017-03-14 09:10:04
○ 2026-04-10 11:19:02
○ 2026-05-09 14:44:06
●MXmx.hetemail.jp2026-04-10 → 2026-05-09 · 3 obs
○ 2017-03-14 09:10:04
● 2026-04-10 11:19:02
● 2026-05-09 14:44:06
●A157.7.189.2522026-04-10 → 2026-05-09 · 3 obs
○ 2017-03-14 09:10:04
● 2026-04-10 11:19:02
● 2026-05-09 14:44:06
○A210.155.103.1642007-08-23 → 2007-08-23 · 3 obs
● 2007-08-23 00:56:36
○ 2015-05-20 19:42:02
○ 2026-05-09 14:44:06
○A211.16.230.1652015-05-20 → 2017-03-14 · 5 obs
○ 2007-08-23 00:56:36
● 2015-05-20 19:42:02
● 2017-03-14 09:10:04
○ 2026-04-10 11:19:02
○ 2026-05-09 14:44:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, d.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net...-
office-tsuda.comdns0.heteml.jp, dns1.heteml.jp-

✅ Authoritative Response

Server:157.7.188.149

NS records: dns0.heteml.jp, dns1.heteml.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for office-tsuda.com (unsigned zone)

⏱️ Timing

Total: 1126ms | Queries: -

📄 Records

TypeCountSample Data
A1157.7.189.252
NS2dns1.heteml.jp, dns0.heteml.jp
MX1mx.hetemail.jp (pri: 10)
TXT1v=spf1 include:_spf.heteml.jp ~all
SOA1dns0.heteml.jp hostmaster.office-tsuda.c

Analysis

Hierarchy

office-tsuda.com is the parent of mail.office-tsuda.com.

IP Addresses

office-tsuda.com resolves to a single IP: 157.7.189.252.

Other host names, for instance veernca.co.jp, shi-mo.co.jp, aromalab.co.jp, www.sciencecommunication.jp and mail.office-tsuda.com share IP numbers with office-tsuda.com.

Name Servers

office-tsuda.com has two name servers: dns0.heteml.jp and dns1.heteml.jp.

office-tsuda.com shares the same name server setup as other domains, for example wp8.jp, szk-web.com, nnnny.jp, 117kobe.com and aga7.com.

Host names with a single IP:

dns0.heteml.jp points to 157.7.44.53

dns1.heteml.jp points to 157.7.188.149

Mail Servers

office-tsuda.com is handled by a single mail server, mx.hetemail.jp.

office-tsuda.com shares the mail server setup with other domains, for example xn--3kq2bu70es6g43j9wm7ybx4lwk8c.com, tachibana-technos.com, asuka-r.com, 100scifi.com and todai-farm.com.

office-tsuda.com shares at least some mail servers with other domains, for example biwasoko.co.jp.

Host name mx.hetemail.jp points to IP 157.7.189.1.