rex-system.com - robtex.com
rex-system.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | 01.dnsv.jp ⭐ | ||||||
| A | 2400:8500:3300::53🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc. | ||||||
| PTR | 01.dnsv.jp | ||||||
| A | 157.7.32.53🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 01.dnsv.jp | ||||||
| NS | 02.dnsv.jp | ||||||
| A | 157.7.33.53🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 02.dnsv.jp | ||||||
| NS | 03.dnsv.jp | ||||||
| A | 2400:8500:3000::53🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc. | ||||||
| PTR | 03.dnsv.jp | ||||||
| A | 157.7.34.53🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 03.dnsv.jp | ||||||
| NS | 04.dnsv.jp | ||||||
| A | 2400:8500:3fff::53🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc. | ||||||
| PTR | 04.dnsv.jp | ||||||
| A | 157.7.35.53🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | 04.dnsv.jp | ||||||
| MX | ms14532409.msv1.invalid.outlook.com ⭐ | ||||||
| MX | mx.rex-system.com(10) | ||||||
| A | 163.43.91.68🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | secure05.willnet.org | ||||||
| TXT | v=spf1 a mx include:spf01.willnet.ad.jp ~all | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1682646040 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776003327 | ||||||
Subdomains
mx.rex-system.com |
Same first word
rex-system.com |
rex-system.co.jp |
DNS History
6 records (6 active, 0 former)
●MXms14532409.msv1.invalid.outlook.com2015-06-11 → 2026-04-12 · 2 obs
● 2026-04-12 14:16:24
●MXmx.rex-system.com2015-06-11 → 2026-04-12 · 2 obs
● 2026-04-12 14:16:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| rex-system.com | 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp | - |
✅ Authoritative Response
Server:157.7.35.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rex-system.com (unsigned zone)
⏱️ Timing
Total: 1054ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 2 | ms14532409.msv1.invalid.outlook.com (pri, mx.rex-system.com (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf01.willnet.ad.jp |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
Analysis
Hierarchy
rex-system.com is the parent of mx.rex-system.com.
Name Servers
rex-system.com is delegated to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
rex-system.com shares name servers with other domains at least partially, for example ekoon.net, 9999.jp, luck-can.net, tesso.pw and bengoshijimusho.net.
Hosts with two IP numbers
- Host 01.dnsv.jp points to: 2400:8500:3300::53 and 157.7.32.53
- Host 03.dnsv.jp points to: 2400:8500:3000::53 and 157.7.34.53
- Host 04.dnsv.jp points to: 2400:8500:3fff::53 and 157.7.35.53
Hosts with one IP number
- Host 02.dnsv.jp points to: 157.7.33.53
Mail Servers
Two mail servers mx.rex-system.com and ms14532409.msv1.invalid.outlook.com handle rex-system.com.
Hostnames with a single IP:
mx.rex-system.com resolves to 163.43.91.68.