port53.jp - robtex.com
port53.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dev.port53.jp ⭐ | ||||||
| NS | ns1.port53.jp | ||||||
| A | 118.27.31.173🇯🇵 GMO-INTERNET118.27.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | ns1.port53.jp | ||||||
| NS | ns2.port53.jp | ||||||
| A | 153.127.53.23🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ns2.port53.jp | ||||||
| MX | mx.port25.jp ⭐ | ||||||
| A | 133.242.135.123🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | mxs.port25.jp | ||||||
| SOA | dev.port53.jpdev@port53.jp 2021-05-01 #2 | ||||||
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=1775976302 | ||||||
NS for
Subdomains
Same first word
DNS History
4 records (4 active, 0 former)
●NSdev.port53.jp2015-08-03 → 2026-04-12 · 2 obs
● 2026-04-12 07:09:04
●NSns1.port53.jp2015-08-03 → 2026-04-12 · 2 obs
● 2026-04-12 07:09:04
●NSns2.port53.jp2015-08-03 → 2026-04-12 · 2 obs
● 2026-04-12 07:09:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| port53.jp | ns1.port53.jp, ns2.port53.jp | 2 records |
✅ Authoritative Response
Server:153.127.53.23
NS records: ns1.port53.jp, ns2.port53.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for port53.jp (unsigned zone)
⏱️ Timing
Total: 845ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns2.port53.jp, ns1.port53.jp |
| MX | 1 | mx.port25.jp (pri: 10) |
| SOA | 1 | dev.port53.jp dev.port53.jp |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.port53.jp, ns2.port53.jp)
Analysis
Hierarchy
port53.jp is a parent of ns2.port53.jp and ns1.port53.jp.
Name Server Role
port53.jp serves as the name server for fptool.jp.
ns1.port53.jp and ns2.port53.jp are commonly used as name servers along with port53.jp.
Name Servers
The domain port53.jp is delegated to three name servers: dev.port53.jp, ns1.port53.jp and ns2.port53.jp.
port53.jp shares name servers with other domains at least partially, for instance port25.jp, webteam.jp, fpe-press.com, kyoukara.jp and nj-pop.jp.
These name servers are often used with root.port25.jp, nolypray.qwebt.com, noreplay.qwebt.com, root.kyoukara.jp and root.port53.jp.
Host names with one IP number:
ns1.port53.jp points to: 118.27.31.173.
ns2.port53.jp points to: 153.127.53.23.
Mail Servers
The mail server for port53.jp is mx.port25.jp.
port53.jp shares the same mail server setup as other domains, including nj-pop.jp, junji.to, ikedanoriyuki.jp, nag-web.net and qwebt.com.
port53.jp shares at least some mail servers with other domains, for instance kyoukara.jp.
Host name mx.port25.jp resolves to IP 133.242.135.123.