mb.yweb.jp - robtex.com
mb.yweb.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.212.133.30🇯🇵 InfoSphere202.212.0.0/16 INFOSPHERE | ||||||
| PTR | dr40.sv3.jp | ||||||
yweb.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.212.133.30🇯🇵 InfoSphere202.212.0.0/16 INFOSPHERE | ||||||
| NS | vm0.yweb.jp ⭐ | ||||||
| NS | ns2.sppd.ne.jp | ||||||
| NS | ns9.sppd.ne.jp | ||||||
| MX | mb.yweb.jp ⭐ | ||||||
| TXT | v=spf1 +mx +a ~all | ||||||
| SOA | vm0.yweb.jproot@vm0.yweb.jp 2026-02-20 #1 | ||||||
MX for
Same first word
Similar names
DNS History
3 records (1 active, 2 former)
○A111.89.207.102015-05-21 → 2017-01-24 · 4 obs
● 2015-05-21 23:29:08
● 2017-01-24 14:38:08
○ 2026-02-16 02:38:42
○ 2026-05-11 01:18:10
● 2017-01-24 14:38:08
○ 2026-02-16 02:38:42
○ 2026-05-11 01:18:10
○A202.212.133.292026-02-16 → 2026-02-18 · 5 obs
○ 2017-01-24 14:38:08
● 2026-02-16 02:38:42
● 2026-02-18 21:31:48
○ 2026-02-20 00:55:44
○ 2026-05-11 01:18:10
● 2026-02-16 02:38:42
● 2026-02-18 21:31:48
○ 2026-02-20 00:55:44
○ 2026-05-11 01:18:10
●A202.212.133.302026-02-20 → 2026-05-11 · 3 obs
○ 2026-02-18 21:31:48
● 2026-02-20 00:55:44
● 2026-05-11 01:18:10
● 2026-02-20 00:55:44
● 2026-05-11 01:18:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, a.dns.jp, h.dns.jp, c.dns.jp... | - |
| yweb.jp | ns2.sppd.ne.jp, ns9.sppd.ne.jp | - |
✅ Authoritative Response
Server:202.212.133.4
NS records: ns2.sppd.ne.jp, ns9.sppd.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for yweb.jp (unsigned zone)
⏱️ Timing
Total: 1619ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.212.133.30 |
Analysis
Mail Server Role
mb.yweb.jp functions as a mail server for yweb.jp.
IP Addresses
mb.yweb.jp resolves to one IP number: 202.212.133.30.
other host names including mb.railecr.com, mb.eiko1988.com, innetone.jp, railecr.com and mb.pdh.jp share IP numbers with mb.yweb.jp.