roomcore.jp - robtex.com
roomcore.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.18.170.77🇯🇵 KAGOYAJAPAN133.18.0.0/16 KAGOYA Japan Inc. | ||||||
| PTR | v133-18-170-77.vir.kagoya.net | ||||||
| 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 | ||||||
| SOA | 01.dnsv.jphostmaster@dnsv.jp serial=1564043395 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1785476702 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●A133.18.170.772026-04-12 → 2026-07-31 · 2 obs
● 2026-07-31 06:08:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| roomcore.jp | 03.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp | 7 records |
✅ Authoritative Response
Server:157.7.34.53
NS records: 03.dnsv.jp, 04.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for roomcore.jp (unsigned zone)
⏱️ Timing
Total: 862ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.18.170.77 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
📌 Glue Records Collected
Total: 7
Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)
Analysis
IP Addresses
roomcore.jp resolves to just one IP address, 133.18.170.77.
There are other host names — v133-18-170-77.vir.kagoya.net among them — that share IP numbers with roomcore.jp.
Name Servers
The NS records for roomcore.jp point to four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
The name servers of roomcore.jp overlap at least partially with those of other domains — among them atelier-arte.jp, cijapan.com, majorflow.biz and two more.
Host names that have two IP addresses:
01.dnsv.jp has two IP addresses: 157.7.32.53 and 2400:8500:3300::53.
03.dnsv.jp has two IP addresses: 157.7.34.53 and 2400:8500:3000::53.
04.dnsv.jp has two IP addresses: 157.7.35.53 and 2400:8500:3fff::53.
Host names that point to one IP address:
02.dnsv.jp directs to 157.7.33.53.