smtp.systemnet-jp.com - robtex.com
smtp.systemnet-jp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 182.16.226.148🇯🇵 atworks182.16.224.0/21 A.T.WORKS,Inc. CIDR-block NO.2 | ||||||
| PTR | onx07.atw.ne.jp | ||||||
systemnet-jp.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 182.16.226.148🇯🇵 atworks182.16.224.0/21 A.T.WORKS,Inc. CIDR-block NO.2 | ||||||
| NS | ns0.atw.jp ⭐ | ||||||
| NS | ns.dlsv.com ⚠️ Not in zone NS records | ||||||
| NS | ns1.atw.jp ⚠️ Not in parent delegation | ||||||
| NS | ns2.atw.jp ⚠️ Not in parent delegation | ||||||
| NS | ns2.dlsv.com ⚠️ Not in zone NS records | ||||||
| NS | ns3.atw.jp ⚠️ Not in parent delegation | ||||||
| NS | ns3.dlsv.com ⚠️ Not in zone NS records | ||||||
| MX | smtp.systemnet-jp.com ⭐ | ||||||
| TXT | v=spf1 +ip4:182.16.226.148 ~all | ||||||
| SOA | ns0.atw.jphostmaster@atw.jp 2020-12-08 #1 | ||||||
MX for
Previously MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A182.16.226.1482026-03-21 → 2026-04-13 · 3 obs
○ 2019-12-26 09:52:40
● 2026-03-21 09:12:54
● 2026-04-13 21:10:40
● 2026-03-21 09:12:54
● 2026-04-13 21:10:40
○A219.99.220.2222019-12-26 → 2019-12-26 · 3 obs
● 2019-12-26 09:52:40
○ 2026-03-21 09:12:54
○ 2026-04-13 21:10:40
○ 2026-03-21 09:12:54
○ 2026-04-13 21:10:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| systemnet-jp.com | ns3.dlsv.com, ns2.dlsv.com, ns.dlsv.com | 3 records |
✅ Authoritative Response
Server:210.236.247.71
NS records: ns3.dlsv.com, ns2.dlsv.com, ns.dlsv.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for systemnet-jp.com (unsigned zone)
⏱️ Timing
Total: 511ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 182.16.226.148 |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.dlsv.com, ns2.dlsv.com, ns.dlsv.com)
Analysis
Mail Server Role
smtp.systemnet-jp.com functions as a mail server for systemnet-jp.com.
IP Addresses
smtp.systemnet-jp.com points to IP number: 182.16.226.148.
Other host names such as smtp.micaholics.com, smtp.aqtis.biz, smtp.nikkyu.co.jp, atw-kdc.co.jp and smtp.t-kakou.co.jp share IPs with smtp.systemnet-jp.com.