mathlab-jp.com - robtex.com
mathlab-jp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.189.114🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users289.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@mathlab-jp.com serial=1776212177 | ||||||
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=1776211287 | ||||||
Subdomains
mail.mathlab-jp.com |
Same first word
mathlab-jp.com |
DNS History
8 records (4 active, 4 former)
●NSdns0.heteml.jp2026-04-14 → 2026-04-15 · 3 obs
● 2026-04-14 11:50:54
● 2026-04-15 00:20:58
●NSdns1.heteml.jp2026-04-14 → 2026-04-15 · 3 obs
● 2026-04-14 11:50:54
● 2026-04-15 00:20:58
○NSns.mathlab-jp.com2015-08-11 → 2018-07-28 · 4 obs
● 2018-07-28 21:13:30
○ 2026-04-14 11:50:54
○ 2026-04-15 00:20:58
○NSns04.xbit.jp2015-08-11 → 2018-07-28 · 4 obs
● 2018-07-28 21:13:30
○ 2026-04-14 11:50:54
○ 2026-04-15 00:20:58
○MXmail.mathlab-jp.com2015-08-11 → 2018-07-28 · 4 obs
● 2018-07-28 21:13:30
○ 2026-04-14 11:50:54
○ 2026-04-15 00:20:58
●MXmx.hetemail.jp2026-04-14 → 2026-04-15 · 3 obs
● 2026-04-14 11:50:54
● 2026-04-15 00:20:58
●A157.7.189.1142026-04-14 → 2026-04-15 · 3 obs
● 2026-04-14 11:50:54
● 2026-04-15 00:20:58
○A59.106.33.1122015-08-11 → 2018-07-28 · 4 obs
● 2018-07-28 21:13:30
○ 2026-04-14 11:50:54
○ 2026-04-15 00:20:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net... | - |
| mathlab-jp.com | dns0.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 mathlab-jp.com (unsigned zone)
⏱️ Timing
Total: 1017ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.189.114 |
| NS | 2 | dns0.heteml.jp, dns1.heteml.jp |
| MX | 1 | mx.hetemail.jp (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.heteml.jp ~all |
| SOA | 1 | dns0.heteml.jp hostmaster.mathlab-jp.com |
Analysis
Hierarchy
mail.mathlab-jp.com has mathlab-jp.com as its parent.
IP Addresses
mathlab-jp.com maps to IP address 157.7.189.114.
Other host names, for instance nagomi-dc.net, www.accw.net, kamikaze-base.com, mochicom.com and hostmaster.yama(0x73686974)a-fp.com share IP numbers with mathlab-jp.com.
Name Servers
Two name servers dns0.heteml.jp and dns1.heteml.jp are delegated to mathlab-jp.com.
mathlab-jp.com uses the same name server configuration as other domains, such as tohto-haime.co.jp, hotta-hifuka.com, asako.com, engidou.com and hiramatsu.ac.jp.
Host names with a single IP address:
dns0.heteml.jp points to 157.7.44.53
dns1.heteml.jp points to 157.7.188.149
Mail Servers
mathlab-jp.com is handled by a single mail server, mx.hetemail.jp.
mathlab-jp.com shares the same mail server setup as other domains, including joymedia.jp, sai-speed.com, esthedia.com, link-glasses.com and sundaysoundtrack.com.
mathlab-jp.com shares some mail servers with other domains, at least partially, for instance accellmobile.com.
mx.hetemail.jp points to one IP number: 157.7.189.1.