tetsuko.co.jp - robtex.com
tetsuko.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.189.243🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users224.vip.heteml.jp | ||||||
| NS | dns01.muumuu-domain.com ⭐ | ||||||
| A | 202.239.23.39🇯🇵 IDC202.239.23.0/24 Frontier Inc. | ||||||
| NS | dns02.muumuu-domain.com | ||||||
| A | 160.251.249.62🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| MX | mx-proxy501.heteml.jp ⭐ | ||||||
| A | 157.7.189.17🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| MX | mx-proxy502.heteml.jp(20) | ||||||
| A | 157.7.189.18🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| TXT | v=spf1 include:_spf.heteml.jp ~all | ||||||
| TXT | google-site-verification=zph9SdY9mBD6ZbCO05Fpbauu97fynZ39ZV9GfYApeOk | ||||||
| SOA | dns01.muumuu-domain.compostmaster@tetsuko.co.jp serial=1665277213 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSdns0.heteml.jp2017-01-19 → 2018-10-17 · 4 obs
● 2018-10-17 17:56:18
○ 2026-03-26 02:58:40
○ 2026-04-14 09:39:22
●NSdns01.muumuu-domain.com2026-03-26 → 2026-04-14 · 3 obs
● 2026-03-26 02:58:40
● 2026-04-14 09:39:22
●NSdns02.muumuu-domain.com2026-03-26 → 2026-04-14 · 3 obs
● 2026-03-26 02:58:40
● 2026-04-14 09:39:22
○NSdns1.heteml.jp2017-01-19 → 2018-10-17 · 4 obs
● 2018-10-17 17:56:18
○ 2026-03-26 02:58:40
○ 2026-04-14 09:39:22
●MXmx-proxy501.heteml.jp2017-01-19 → 2026-04-14 · 2 obs
● 2026-04-14 09:39:22
●MXmx-proxy502.heteml.jp2017-01-19 → 2026-04-14 · 2 obs
● 2026-04-14 09:39:22
○A133.130.17.1222018-10-17 → 2018-10-17 · 4 obs
● 2018-10-17 17:56:18
○ 2026-03-26 02:58:40
○ 2026-04-14 09:39:22
○A157.7.189.1872017-01-19 → 2017-01-19 · 3 obs
○ 2018-10-17 17:56:18
○ 2026-04-14 09:39:22
●A157.7.189.2432026-03-26 → 2026-04-14 · 3 obs
● 2026-03-26 02:58:40
● 2026-04-14 09:39:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| tetsuko.co.jp | dns01.muumuu-domain.com, dns02.muumuu-domain.com | - |
✅ Authoritative Response
Server:202.239.23.39
NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tetsuko.co.jp (unsigned zone)
⏱️ Timing
Total: 1301ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.189.243 |
| NS | 2 | dns01.muumuu-domain.com, dns02.muumuu-domain.com |
| MX | 2 | mx-proxy502.heteml.jp (pri: 20), mx-proxy501.heteml.jp (pri: 10) |
| TXT | 2 | v=spf1 include:_spf.heteml.jp ~all, google-site-verification=zph9SdY9mBD6ZbC |
| SOA | 1 | dns01.muumuu-domain.com postmaster.tetsu |
Analysis
IP Addresses
tetsuko.co.jp resolves to one IP number: 157.7.189.243.
other host names including sanshiro.tv, penguin-aqua.jp, hostmaster.ryukou.biz, mx01.bodrumgazete.com and marunouchi-kikaku.kikyouya.co.jp share IP numbers with tetsuko.co.jp.
Name Servers
tetsuko.co.jp is delegated to two name servers dns01.muumuu-domain.com and dns02.muumuu-domain.com.
tetsuko.co.jp shares the same name server setup as other domains, for instance vivo-style.com, lombok.vacations, animal-kenpo.com, shirouzu-clinic.com and tashimaya-tatami.com.
tetsuko.co.jp at least partially shares name servers with other domains, for instance ym2t.net, blackmagicdesign-creatorscom.jp, littlejumbo.jp, yakiniku-suruga.com and iehara.com.
Host names with one IP number:
dns01.muumuu-domain.com points to 202.239.23.39
dns02.muumuu-domain.com points to 160.251.249.62
Mail Servers
Two mail servers handle tetsuko.co.jp: mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.
tetsuko.co.jp shares the same mail server setup as other domains, for instance lamere-ph.net, njks.co.jp, link-h.co.jp, childlife.gr.jp and wolfive.com.
tetsuko.co.jp shares some mail servers with other domains, at least partially, for example taiyodoenvelopes.co.jp and metaphor.co.jp.
Host names with one IP number:
mx-proxy501.heteml.jp points to 157.7.189.17
mx-proxy502.heteml.jp points to 157.7.189.18