chuo-sgs.com - robtex.com
chuo-sgs.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns3.sphere.ad.jp ⚠️ Not in zone NS records | ||||||
| A | 202.239.113.22🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns3.sphere.ad.jp | ||||||
| NS | ns4.sphere.ad.jp ⚠️ Not in zone NS records | ||||||
| A | 202.239.113.30🇯🇵 InfoSphere202.239.64.0/18 INFOSPHERE | ||||||
| PTR | ns4.sphere.ad.jp | ||||||
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=1777160126 | ||||||
PTR for
Same first word
chuo-sgs.com |
DNS History
5 records (2 active, 3 former)
●NSns3.sphere.ad.jp2026-04-15 → 2026-04-25 · 3 obs
○ 2016-12-20 23:23:00
● 2026-04-15 19:45:20
● 2026-04-25 23:52:00
● 2026-04-15 19:45:20
● 2026-04-25 23:52:00
○NSns32.i-d-service.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 23:23:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
●NSns4.sphere.ad.jp2016-12-20 → 2026-04-25 · 2 obs
● 2016-12-20 23:23:00
● 2026-04-25 23:52:00
● 2026-04-25 23:52:00
○MXmail.chuo-sgs.com2016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 23:23:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
○A1.33.188.1892016-12-20 → 2016-12-20 · 3 obs
● 2016-12-20 23:23:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
○ 2026-04-15 19:45:20
○ 2026-04-25 23:52:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| chuo-sgs.com | ns3.sphere.ad.jp, ns4.sphere.ad.jp | - |
✅ Authoritative Response
Server:202.239.113.30
NS records: ns3.sphere.ad.jp, ns4.sphere.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chuo-sgs.com (unsigned zone)
⏱️ Timing
Total: 978ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
chuo-sgs.com has two name servers: ns3.sphere.ad.jp and ns4.sphere.ad.jp.
chuo-sgs.com shares the same name server setup as other domains, for example pingpong.jp, www.jfpa.org, a01.hs.plala.or.jp, mk-net.jp and nagasawa-p.co.jp.
Host names with a single IP:
ns3.sphere.ad.jp points to 202.239.113.22
ns4.sphere.ad.jp points to 202.239.113.30