sysnet.jp - dns.ninja
sysnet.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 18.182.123.15🇯🇵 Amazon18.182.0.0/16 EC2 NRT prefix | ||||||
| PTR | ec2-18-182-123-15.ap-northeast-1.compute.amazonaws.com | ||||||
| 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=1736911262 | ||||||
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=1784164502 | ||||||
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
●NS01.dnsv.jp2015-12-05 → 2026-07-16 · 3 obs
● 2015-12-05 21:12:20
● 2026-07-16 02:18:08
●NS02.dnsv.jp2015-12-05 → 2026-07-16 · 3 obs
● 2015-12-05 21:12:20
● 2026-07-16 02:18:08
●NS03.dnsv.jp2015-12-05 → 2026-07-16 · 3 obs
● 2015-12-05 21:12:20
● 2026-07-16 02:18:08
●NS04.dnsv.jp2015-12-05 → 2026-07-16 · 3 obs
● 2015-12-05 21:12:20
● 2026-07-16 02:18:08
○NSsiname.intelligent.co.jp2015-07-12 → 2015-07-12 · 3 obs
○ 2015-12-05 21:12:20
○ 2026-07-16 02:18:08
○MXsisg.intelligent.co.jp2015-07-12 → 2016-07-05 · 4 obs
● 2016-07-05 20:52:48
○ 2026-03-03 22:01:02
○ 2026-07-16 02:18:08
●A18.182.123.152026-03-03 → 2026-07-16 · 3 obs
● 2026-03-03 22:01:02
● 2026-07-16 02:18:08
○A221.114.166.992015-07-12 → 2015-07-12 · 3 obs
○ 2015-12-05 21:12:20
○ 2026-07-16 02:18:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| sysnet.jp | 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp | 7 records |
✅ Authoritative Response
Server:157.7.32.53
NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysnet.jp (unsigned zone)
⏱️ Timing
Total: 1191ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 18.182.123.15 |
| 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 (01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp...)
Analysis
IP Addresses
sysnet.jp directs to one IP number, which is 18.182.123.15.
There are other host names — ec2-18-182-123-15.ap-northeast-1.compute.amazonaws.com among them — that share IP numbers with sysnet.jp.
Name Servers
The domain sysnet.jp is delegated to these four name servers: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
The name servers of sysnet.jp overlap at least partially with those of other domains — among them arctanx.net, it-guide.net, isono-mokkou.com and two more.
Hosts with two IP numbers each:
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.
Hosts that resolve to one IP address:
02.dnsv.jp directs to 157.7.33.53.