postmaster.net4u.org - robtex.com
postmaster.net4u.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.157.48🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www12274uf.sakura.ne.jp | ||||||
net4u.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.43.112.7🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc. | ||||||
| NS | ns1.value-domain.com ⭐ | ||||||
| NS | ns2.value-domain.com | ||||||
| NS | ns3.value-domain.com ⚠️ Not in zone NS records | ||||||
| NS | ns4.value-domain.com ⚠️ Not in zone NS records | ||||||
| MX | mail.net4u.org ⭐ | ||||||
| TXT | v=spf1 include:_spf.google.com ~all | ||||||
| TXT | v=spf1 mx ~all | ||||||
| TXT | v=spf1 include:sv.net4u.jp ~all | ||||||
| TXT | v=spf1 include:sv2.net4u.jp ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@net4u.org 2021-11-10 #10 | ||||||
rank #8544 in the tld
📈 Tranco rank: #336,473
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A49.212.157.482015-06-13 → 2026-04-12 · 2 obs
● 2015-06-13 11:50:50
● 2026-04-12 19:34:42
● 2026-04-12 19:34:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| net4u.org | ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns1.value-domain.com | - |
✅ Authoritative Response
Server:172.64.52.161
NS records: ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns1.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for net4u.org (unsigned zone)
⏱️ Timing
Total: 701ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.157.48 |
Analysis
IP Addresses
postmaster.net4u.org points to a single IP address: 49.212.157.48.
Other host names such as *.net4u.org, hostmaster.net4u.org, cbbs1.net4u.org, diary1m.net4u.org and ns.net4u.org share IP numbers with postmaster.net4u.org.