4think.jp - robtex.com
4think.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.44.169🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users250.vip.heteml.jp | ||||||
| NS | dns0.heteml.jp ⭐ | ||||||
| A | 157.7.44.53🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | dns510.heteml.jp | ||||||
| NS | dns1.heteml.jp | ||||||
| A | 157.7.188.149🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | dns711.phy.heteml.jp | ||||||
| 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 | ||||||
| SOA | dns0.heteml.jphostmaster@4think.jp serial=1783244898 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1783244702 | ||||||
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
○MXmail26.heteml.jp2015-06-30 → 2017-02-18 · 4 obs
● 2017-02-18 14:51:48
○ 2026-05-28 22:34:40
○ 2026-07-05 10:04:22
●MXmx-proxy501.heteml.jp2026-05-28 → 2026-07-05 · 3 obs
● 2026-05-28 22:34:40
● 2026-07-05 10:04:22
●MXmx-proxy502.heteml.jp2026-05-28 → 2026-07-05 · 3 obs
● 2026-05-28 22:34:40
● 2026-07-05 10:04:22
○A157.7.188.2262015-11-11 → 2017-02-18 · 5 obs
● 2015-11-11 00:38:00
● 2017-02-18 14:51:48
○ 2026-05-28 22:34:40
○ 2026-07-05 10:04:22
●A157.7.44.1692026-05-28 → 2026-07-05 · 3 obs
● 2026-05-28 22:34:40
● 2026-07-05 10:04:22
○A210.188.199.2292015-06-30 → 2015-06-30 · 3 obs
○ 2015-11-11 00:38:00
○ 2026-07-05 10:04:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| 4think.jp | dns0.heteml.jp, dns1.heteml.jp | 2 records |
✅ Authoritative Response
Server:157.7.188.149
NS records: dns0.heteml.jp, dns1.heteml.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4think.jp (unsigned zone)
⏱️ Timing
Total: 1401ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.44.169 |
| NS | 2 | dns1.heteml.jp, dns0.heteml.jp |
| MX | 2 | mx-proxy502.heteml.jp (pri: 20), mx-proxy501.heteml.jp (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.heteml.jp ~all |
| SOA | 1 | dns0.heteml.jp hostmaster.4think.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.heteml.jp, dns0.heteml.jp)
Analysis
IP Addresses
4think.jp resolves to just one IP address, 157.7.44.169.
Two other host names, along with o-kane.net, suzukake.co.jp and maki-piano-suginami.com, also share IP numbers with 4think.jp.
Name Servers
4think.jp has two authoritative name servers — dns0.heteml.jp and dns1.heteml.jp.
4think.jp shares its NS records with other domains, for example lovespo-tokyo.com, tanakasaketen.com, senbon.jp and two others.
Both dns0.heteml.jp and dns1.heteml.jp have a single IP address each — dns0.heteml.jp resolves to 157.7.44.53 while dns1.heteml.jp resolves to 157.7.188.149.
Mail Servers
4think.jp is served by two mail servers, mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.
Among the domains sharing a mail server setup with 4think.jp are powerwatch.jp, big-m-one.jp, romu.info and two others.
Both mx-proxy501.heteml.jp and mx-proxy502.heteml.jp have a single IP address each — mx-proxy501.heteml.jp resolves to 157.7.189.17 while mx-proxy502.heteml.jp resolves to 157.7.189.18.