mail.20b.jp - robtex.com

mail.20b.jp

DNSSEC⚠️ Not signed
A202.172.28.3🇯🇵 DRNET202.172.24.0/21
PTRs2.coreserver.jp

20b.jp

DNSSEC⚠️ Not signed
A202.172.28.3🇯🇵 DRNET202.172.24.0/21
NSns1.value-domain.com ⭐
NSns2.value-domain.com
MX20b.jp ⭐
TXTv=spf1 ip4:202.172.28.3 include:mxr.valueserver.jp ~all
SOAns1.value-domain.comhostmaster@20b.jp 2023-07-30 #13

Previously MX for

20b.jp

Same first word

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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A202.172.28.3202.172.26.40
○A202.172.26.402015-06-26 → 2017-01-02 · 3 obs
● 2015-06-26 21:47:00
● 2017-01-02 02:34:52
○ 2026-04-25 23:41:34
●A202.172.28.32026-04-25 → 2026-04-25 · 2 obs
○ 2017-01-02 02:34:52
● 2026-04-25 23:41:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
20b.jpns1.value-domain.com, ns2.value-domain.com-

✅ Authoritative Response

Server:172.64.53.115

NS records: ns1.value-domain.com, ns2.value-domain.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 20b.jp (unsigned zone)

⏱️ Timing

Total: 1117ms | Queries: -

📄 Records

TypeCountSample Data
A1202.172.28.3

Analysis

IP Addresses

mail.20b.jp resolves to a single IP: 202.172.28.3.

Other host names, for instance hostmaster.wwwiw.com, fudousankakaku.net, securityup.net, mail.thnx.biz and kaleidostage.org share IP numbers with mail.20b.jp.