b-kokoro.com - robtex.com
b-kokoro.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.167.8.19🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | www5109.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | b-kokoro.com ⭐ | ||||||
| A | 133.167.8.19🇯🇵 SAKURA-C133.167.0.0/16 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | www5109.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www5109.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2022-03-10 #18 | ||||||
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=1778765891 | ||||||
MX for
b-kokoro.com |
Same first word
b-kokoro.com |
Similar names
DNS History
8 records (5 active, 3 former)
●NSmaster.dns.ne.jp2026-03-16 → 2026-05-14 · 3 obs
● 2026-03-16 09:11:56
● 2026-05-14 13:48:14
●NSns1.dns.ne.jp2026-03-16 → 2026-05-14 · 3 obs
● 2026-03-16 09:11:56
● 2026-05-14 13:48:14
○NSns1.value-domain.com2015-05-18 → 2017-04-07 · 4 obs
● 2017-04-07 22:29:24
○ 2026-03-16 09:11:56
○ 2026-05-14 13:48:14
●NSns2.dns.ne.jp2026-03-16 → 2026-05-14 · 3 obs
● 2026-03-16 09:11:56
● 2026-05-14 13:48:14
○NSns2.value-domain.com2015-05-18 → 2017-04-07 · 4 obs
● 2017-04-07 22:29:24
○ 2026-03-16 09:11:56
○ 2026-05-14 13:48:14
●MXb-kokoro.com2015-05-18 → 2026-05-14 · 2 obs
● 2026-05-14 13:48:14
●A133.167.8.192026-03-16 → 2026-05-14 · 3 obs
● 2026-03-16 09:11:56
● 2026-05-14 13:48:14
○A202.172.28.522015-05-18 → 2017-04-07 · 4 obs
● 2017-04-07 22:29:24
○ 2026-03-16 09:11:56
○ 2026-05-14 13:48:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| b-kokoro.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b-kokoro.com (unsigned zone)
⏱️ Timing
Total: 420ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.167.8.19 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | b-kokoro.com (pri: 10) |
| TXT | 1 | v=spf1 a:www5109.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
b-kokoro.com serves as the mail server for b-kokoro.com.
IP Addresses
b-kokoro.com points to IP number: 133.167.8.19.
Other host names such as www.izumi-motoyawata.jp, oitamh.jp, seiri.la, www5109.sakura.ne.jp and izumi-motoyawata.jp share IPs with b-kokoro.com.
Name Servers
b-kokoro.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
b-kokoro.com at least partially shares name servers with other domains, for instance chizuka.com, kibungp.co.jp, kanguru.info, zyma.co.jp and ac-v.com.
these name servers are often used in conjunction with the name servers dns.sakura.ad.jp.
Host names with a single IP:
master.dns.ne.jp points to: 210.224.172.18.
ns1.dns.ne.jp points to: 61.211.236.1.
ns2.dns.ne.jp points to: 133.167.21.1.
Mail Servers
b-kokoro.com is handled by a single mail server, b-kokoro.com.
b-kokoro.com points to a single IP: 133.167.8.19.