4est.jp - robtex.com
4est.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.125.146.42🇯🇵 SAKURA-A153.125.128.0/18 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 4est.jp | ||||||
| NS | ns1.4est.jp ⭐ | ||||||
| A | 153.125.146.42🇯🇵 SAKURA-A153.125.128.0/18 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 4est.jp | ||||||
| NS | ns2.4est.jp | ||||||
| A | 153.125.146.42🇯🇵 SAKURA-A153.125.128.0/18 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 4est.jp | ||||||
| MX | mail.4est.jp ⭐ | ||||||
| A | 153.125.146.42🇯🇵 SAKURA-A153.125.128.0/18 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 4est.jp | ||||||
| TXT | v=spf1 +a +mx +a:quo-s.net -all | ||||||
| TXT | google-site-verification=sIg94TUke_WH4cm4e0DlEUrKi88SBz2qxaz0C4SPmEc | ||||||
| SOA | ns1.4est.jpquo4est+plesk@gmail.com 2026-03-18 #7 | ||||||
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=1776097802 | ||||||
PTR for
Subdomains
Same first word
Similar names
t4se.com |
set4.com |
4ets.com |
4set.es |
4ste.com |
s4et.com |
st4e.com |
s4te.com |
tse4.com |
tse4.cn |
est4.com |
4set.com |
e4st.com |
4tes.com |
ts4e.com |
ste4.com |
DNS History
8 records (4 active, 4 former)
○NSns.4est.jp2015-08-28 → 2016-12-20 · 4 obs
● 2016-12-20 16:27:24
○ 2026-03-31 18:30:58
○ 2026-04-13 16:45:38
●NSns1.4est.jp2026-03-31 → 2026-04-13 · 3 obs
● 2026-03-31 18:30:58
● 2026-04-13 16:45:38
●NSns2.4est.jp2026-03-31 → 2026-04-13 · 3 obs
● 2026-03-31 18:30:58
● 2026-04-13 16:45:38
○NSnsx.clara.co.jp2015-08-28 → 2016-12-20 · 4 obs
● 2016-12-20 16:27:24
○ 2026-03-31 18:30:58
○ 2026-04-13 16:45:38
●MXmail.4est.jp2015-08-28 → 2026-04-13 · 2 obs
● 2026-04-13 16:45:38
○A110.50.246.1472015-08-28 → 2016-05-14 · 4 obs
● 2016-05-14 17:32:16
○ 2016-12-20 16:27:24
○ 2026-04-13 16:45:38
●A153.125.146.422026-03-31 → 2026-04-13 · 3 obs
● 2026-03-31 18:30:58
● 2026-04-13 16:45:38
○A202.45.166.622016-12-20 → 2016-12-20 · 4 obs
● 2016-12-20 16:27:24
○ 2026-03-31 18:30:58
○ 2026-04-13 16:45:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| 4est.jp | ns2.4est.jp, ns1.4est.jp | 2 records |
✅ Authoritative Response
Server:153.125.146.42
NS records: ns2.4est.jp, ns1.4est.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4est.jp (unsigned zone)
⏱️ Timing
Total: 928ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.125.146.42 |
| NS | 2 | ns1.4est.jp, ns2.4est.jp |
| MX | 1 | mail.4est.jp (pri: 10) |
| TXT | 2 | google-site-verification=sIg94TUke_WH4cm, v=spf1 +a +mx +a:quo-s.net -all |
| SOA | 1 | ns1.4est.jp quo4est+plesk.gmail.com |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.4est.jp, ns2.4est.jp)
Analysis
Hierarchy
4est.jp is a parent of mail.4est.jp, www.4est.jp, ns1.4est.jp and ns2.4est.jp.
IP Addresses
4est.jp resolves to one IP number: 153.125.146.42.
Other host names, for instance ns2.as-u.net, mail.as-u.net, ns1.yuzum.com, as-u.net and yuzum.com share IP numbers with 4est.jp.
Name Servers
4est.jp's delegation uses two name servers: ns1.4est.jp and ns2.4est.jp.
Host names with a single IP number:
The host name ns1.4est.jp points to 153.125.146.42.
The host name ns2.4est.jp points to 153.125.146.42.
Host names pointing to 153.125.146.42: ns1.4est.jp and ns2.4est.jp.
Mail Servers
A single mail server handles 4est.jp, mail.4est.jp.
Host name mail.4est.jp resolves to a single IP: 153.125.146.42.