firststep.jp - dns.ninja

firststep.jp

DNSSEC⚠️ Not signed
A133.242.137.72🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww1298uj.sakura.ne.jp
NStdns.firststep.jp ⭐
A133.242.137.72🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww1298uj.sakura.ne.jp
NSns1.dns.ne.jp
A61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRns1.dns.ne.jp
MXmail.firststep.jp ⭐
A133.242.137.72🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTRwww1298uj.sakura.ne.jp
SOAtdns.firststep.jppostmaster@firststep.jp 2015-03-01 #0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1782660603

Subdomains

mail.firststep.jp
tdns.firststep.jp

Same first word

firststep.org.uk
firststep.dk
firststep.net
firststep.co.il
firststep.ro
firststep.biz
firststep.cz
firststep.org.au
firststep.co
firststep.online
firststep.com
firststep.de
firststep.ch
firststep.me
firststep.nl
firststep.it
firststep.cn
firststep.fr
firststep.ru
firststep.eu
firststep.by
firststep.at
firststep.org
firststep.co.za
firststep.es
firststep.today
firststep.ir
firststep.ge
firststep.cat
firststep.com.ua
firststep.com.sg
firststep.be
firststep.hu
firststep.jp
firststep.space

Similar names

petsfirst.co.uk
petsfirst.care
petsfirst.ie
spritfest.com
petsfirst.co
septfirst.com
stripfest.ru
spritfest.se
petsfirst.es
firstpets.ru
stepfirst.net
festtrips.com
ifttpress.com
firstpest.com
petsfirst.ca
stepfirst.ru
petsfirst.info
friststep.com
firstpets.com

DNS History

4 records (4 active, 0 former)

20162017201820192020202120222023202420252026NSns1.dns.ne.jptdns.firststep.jpMXmail.firststep.jpA133.242.137.72
●NSns1.dns.ne.jp2015-07-18 → 2026-06-28 · 2 obs
● 2015-07-18 16:38:40
● 2026-06-28 15:39:52
●NStdns.firststep.jp2015-07-18 → 2026-06-28 · 2 obs
● 2015-07-18 16:38:40
● 2026-06-28 15:39:52
●MXmail.firststep.jp2015-07-18 → 2026-06-28 · 2 obs
● 2015-07-18 16:38:40
● 2026-06-28 15:39:52
●A133.242.137.722015-07-18 → 2026-06-28 · 2 obs
● 2015-07-18 16:38:40
● 2026-06-28 15:39:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpf.dns.jp, b.dns.jp, d.dns.jp, e.dns.jp...-
firststep.jpns1.dns.ne.jp, tdns.firststep.jp2 records

✅ Authoritative Response

Server:61.211.236.1

NS records: ns1.dns.ne.jp, tdns.firststep.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firststep.jp (unsigned zone)

⏱️ Timing

Total: 3827ms | Queries: -

📄 Records

TypeCountSample Data
A1133.242.137.72
NS2tdns.firststep.jp, ns1.dns.ne.jp
MX1mail.firststep.jp (pri: 10)
SOA1tdns.firststep.jp postmaster.firststep.j

📌 Glue Records Collected

Total: 2

In-bailiwick: 1 (tdns.firststep.jp)

Out-of-bailiwick: 1 (ns1.dns.ne.jp)

Analysis

Hierarchy

firststep.jp is the parent domain of mail.firststep.jp and tdns.firststep.jp.

IP Addresses

firststep.jp points to a single IP number: 133.242.137.72.

Host names such as mail.firststep.jp, tdns.firststep.jp and www1298uj.sakura.ne.jp share their IP numbers with firststep.jp.

Name Servers

DNS delegation for firststep.jp points to two name servers: tdns.firststep.jp and ns1.dns.ne.jp.

There is at least partial name server overlap between firststep.jp and other domains — hounji.net, msv-im00065.sakura.ne.jp, tokei-akashiya.com and two more among them.

The name servers ns2.dns.ne.jp, master.dns.ne.jp and dns.sakura.ad.jp are often found in combination with these name servers.

tdns.firststep.jp → 133.242.137.72 and ns1.dns.ne.jp → 61.211.236.1: one IP number per host name.

Mail Servers

firststep.jp has one mail server: mail.firststep.jp.

mail.firststep.jp has exactly one IP number: 133.242.137.72.