seiwatech.com - dns.ninja
seiwatech.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.44.227🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users265.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.hetemail.jp ⭐ | ||||||
| A | 157.7.189.1🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mx.heteml.jp | ||||||
| TXT | v=spf1 include:_spf.heteml.jp ~all | ||||||
| SOA | dns0.heteml.jphostmaster@seiwatech.com serial=1786947858 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786948449 | ||||||
Previously MX for
seiwatech.com |
Same first word
seiwatech.co.jp |
seiwatech.com |
Similar names
DNS History
7 records (4 active, 3 former)
●NSdns0.heteml.jp2026-08-14 → 2026-08-17 · 3 obs
● 2026-08-14 18:55:18
● 2026-08-17 06:49:20
●NSdns1.heteml.jp2026-08-14 → 2026-08-17 · 3 obs
● 2026-08-14 18:55:18
● 2026-08-17 06:49:20
○NSdns1.sta.net.cn2008-03-16 → 2008-03-16 · 3 obs
○ 2015-10-27 09:48:54
○ 2026-08-17 06:49:20
○NSdns2.sta.net.cn2008-03-16 → 2008-03-16 · 3 obs
○ 2015-10-27 09:48:54
○ 2026-08-17 06:49:20
●MXmx.hetemail.jp2026-08-14 → 2026-08-17 · 3 obs
● 2026-08-14 18:55:18
● 2026-08-17 06:49:20
○MXseiwatech.com2008-03-16 → 2008-03-16 · 3 obs
○ 2015-10-27 09:48:54
○ 2026-08-17 06:49:20
●A157.7.44.2272026-08-14 → 2026-08-17 · 2 obs
● 2026-08-17 06:49:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net... | - |
| seiwatech.com | dns0.heteml.jp, dns1.heteml.jp | - |
✅ Authoritative Response
Server:157.7.44.53
NS records: dns0.heteml.jp, dns1.heteml.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for seiwatech.com (unsigned zone)
⏱️ Timing
Total: 1009ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.44.227 |
| NS | 2 | dns1.heteml.jp, dns0.heteml.jp |
| MX | 1 | mx.hetemail.jp (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.heteml.jp ~all |
| SOA | 1 | dns0.heteml.jp hostmaster.seiwatech.com |
Analysis
IP Addresses
seiwatech.com resolves to one IP address: 157.7.44.227.
kobe-md.com, www.yamamotodental.com, qmi.co.jp and two other host names share IP numbers with seiwatech.com.
Name Servers
Two name servers handle the delegation for seiwatech.com: dns0.heteml.jp and dns1.heteml.jp.
seiwatech.com uses the same name servers as several other domains — among them thancs.net, motorfan-newmodel.com, 0878.jp and two more.
dns0.heteml.jp and dns1.heteml.jp each resolve to one IP number: dns0.heteml.jp points to 157.7.44.53 and dns1.heteml.jp points to 157.7.188.149.
Mail Servers
Mail for seiwatech.com is handled by a single mail server, mx.hetemail.jp.
seiwatech.com uses an identical mail server configuration to several other domains — among them nakajima-dental.com, ho10-house.com, first-penguin.tokyo and two more.
seiwatech.com has at least partial mail server overlap with other domains such as nafca.jp, asohsika.com, sumireshinkyu-kyoto.com and two more.
mx.hetemail.jp carries a single IP number, which is 157.7.189.1.