sci4.net - robtex.com
sci4.net
| 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 | ||||||
net
| 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=1785194077 | ||||||
Previously MX for
sci4.net |
Same first word
Similar names
DNS History
4 records (2 active, 2 former)
●NSns3.sphere.ad.jp2015-06-29 → 2026-07-27 · 2 obs
● 2015-06-29 15:29:58
● 2026-07-27 23:20:48
● 2026-07-27 23:20:48
●NSns4.sphere.ad.jp2015-06-29 → 2026-07-27 · 2 obs
● 2015-06-29 15:29:58
● 2026-07-27 23:20:48
● 2026-07-27 23:20:48
○MXsci4.net2015-06-29 → 2016-02-12 · 4 obs
● 2015-06-29 15:29:58
● 2016-02-12 04:05:48
○ 2026-04-01 18:25:46
○ 2026-07-27 23:20:48
● 2016-02-12 04:05:48
○ 2026-04-01 18:25:46
○ 2026-07-27 23:20:48
○A119.245.143.82015-06-29 → 2016-02-12 · 4 obs
● 2015-06-29 15:29:58
● 2016-02-12 04:05:48
○ 2026-04-01 18:25:46
○ 2026-07-27 23:20:48
● 2016-02-12 04:05:48
○ 2026-04-01 18:25:46
○ 2026-07-27 23:20:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sci4.net | 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 sci4.net (unsigned zone)
⏱️ Timing
Total: 1261ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
sci4.net is served by two delegated name servers, ns3.sphere.ad.jp and ns4.sphere.ad.jp.
sci4.net shares its name server setup with other domains, including es.st0.arena.ne.jp, tr10.test.suitepro.jp, 34156.pr.arena.ne.jp and two others.
The DNS delegation for sci4.net at least partly coincides with that of other domains, cis-net.co.jp being one example.
Both ns3.sphere.ad.jp and ns4.sphere.ad.jp have a single IP address each — ns3.sphere.ad.jp resolves to 202.239.113.22 while ns4.sphere.ad.jp resolves to 202.239.113.30.