coreit.co.jp - robtex.com

coreit.co.jp

DNSSEC⚠️ Not signed
A153.120.113.171🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTR171.113.120.153.static.www7243m.sakura.ne.jp
NSmaster.dns.ne.jp ⭐
A210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan
PTRmaster.dns.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
NSns2.dns.ne.jp
A133.167.21.1🇯🇵 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
PTRns2.dns.ne.jp
MXcoreit.co.jp ⭐
A153.120.113.171🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan
PTR171.113.120.153.static.www7243m.sakura.ne.jp
TXTv=spf1 a:www7243m.sakura.ne.jp mx ~all
SOAmaster.dns.ne.jptech@sakura.ad.jp 2025-10-01 #1

co.jp

DNSSEC⚠️ Not signed
TXTco.jp.
WOT: SAFE (58/100)

MX for

coreit.co.jp

Same first word

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DNS History

5 records (5 active, 0 former)

NSmaster.dns.ne.jpns1.dns.ne.jpns2.dns.ne.jpMXcoreit.co.jpA153.120.113.171
●NSmaster.dns.ne.jp2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 04:39:02
● 2026-04-12 18:41:08
●NSns1.dns.ne.jp2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 04:39:02
● 2026-04-12 18:41:08
●NSns2.dns.ne.jp2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 04:39:02
● 2026-04-12 18:41:08
●MXcoreit.co.jp2026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 04:39:02
● 2026-04-12 18:41:08
●A153.120.113.1712026-04-11 → 2026-04-12 · 2 obs
● 2026-04-11 04:39:02
● 2026-04-12 18:41:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpg.dns.jp, b.dns.jp, a.dns.jp, d.dns.jp...-
coreit.co.jpns1.dns.ne.jp, ns2.dns.ne.jp2 records

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coreit.co.jp (unsigned zone)

⏱️ Timing

Total: 731ms | Queries: -

📄 Records

TypeCountSample Data
A1153.120.113.171
NS2ns1.dns.ne.jp, ns2.dns.ne.jp
MX1coreit.co.jp (pri: 10)
TXT1v=spf1 a:www7243m.sakura.ne.jp mx ~all
SOA1master.dns.ne.jp tech.sakura.ad.jp

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)

Analysis

Mail Server Role

coreit.co.jp serves as the mail server for coreit.co.jp.

IP Addresses

coreit.co.jp points to IP number: 153.120.113.171.

Name Servers

coreit.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

coreit.co.jp at least partially shares name servers with other domains, for instance ichokai.sakura.ne.jp, www.sanyogas.co.jp, msv-im00175.sakura.ne.jp, ems-music.com and volleyball.gr.jp.

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

coreit.co.jp is handled by a single mail server, coreit.co.jp.

coreit.co.jp points to a single IP: 153.120.113.171.