doucore.com - dns.ninja
doucore.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.44.233🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users267.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@doucore.com serial=1786109538 | ||||||
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=1786116199 | ||||||
Same first word
doucore.com |
Similar names
DNS History
8 records (4 active, 4 former)
●NSdns0.heteml.jp2026-02-24 → 2026-08-07 · 3 obs
● 2026-02-24 05:51:28
● 2026-08-07 15:29:20
●NSdns1.heteml.jp2026-02-24 → 2026-08-07 · 3 obs
● 2026-02-24 05:51:28
● 2026-08-07 15:29:20
○NSdns1.onamae.com2017-09-09 → 2017-09-09 · 3 obs
○ 2026-02-24 05:51:28
○ 2026-08-07 15:29:20
○NSdns2.onamae.com2017-09-09 → 2017-09-09 · 3 obs
○ 2026-02-24 05:51:28
○ 2026-08-07 15:29:20
●MXmx.hetemail.jp2026-02-24 → 2026-08-07 · 2 obs
● 2026-08-07 15:29:20
○A150.95.255.382017-09-09 → 2017-09-09 · 3 obs
○ 2026-02-24 05:51:28
○ 2026-08-07 15:29:20
●A157.7.44.2332026-08-07 → 2026-08-07 · 2 obs
● 2026-08-07 15:29:20
○A157.7.44.2442026-02-24 → 2026-02-24 · 3 obs
● 2026-02-24 05:51:28
○ 2026-08-07 15:29:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| doucore.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 doucore.com (unsigned zone)
⏱️ Timing
Total: 807ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.44.233 |
| 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.doucore.com |
Analysis
IP Addresses
doucore.com has exactly one IP address — 157.7.44.233.
excycles.com, teadays.jp, gate1.biz plus two other host names have IP numbers in common with doucore.com.
Name Servers
The NS records for doucore.com delegate to dns0.heteml.jp and dns1.heteml.jp.
The name server configuration of doucore.com is shared with other domains, for instance ko2.org, otelabo.com, mind-web.co.jp and two others.
Each of dns0.heteml.jp and dns1.heteml.jp has one IP address: dns0.heteml.jp uses 157.7.44.53 and dns1.heteml.jp uses 157.7.188.149.
Mail Servers
doucore.com uses one mail server — mx.hetemail.jp.
The mail server setup of doucore.com matches that of other domains such as hs-share.com, ajing.net, alplaza-kusatsu-apa.jp and two others.
At least a portion of doucore.com's mail servers are shared with other domains, among them oflife.asia and blason.jp.
mx.hetemail.jp resolves to 157.7.189.1 and no other IP number.