sysdev.net - dns.ninja
sysdev.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 85.131.213.26🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc. | ||||||
| PTR | sv16645.xserver.jp | ||||||
| NS | ns1.xserver.jp ⭐ | ||||||
| A | 202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| A | 202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.xserver.jp | ||||||
| NS | ns2.xserver.jp | ||||||
| A | 35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xserver.jp | ||||||
| NS | ns3.xserver.jp | ||||||
| A | 202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.xserver.jp | ||||||
| NS | ns4.xserver.jp | ||||||
| A | 183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| A | 202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns4.xserver.jp | ||||||
| NS | ns5.xserver.jp | ||||||
| A | 157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| A | 202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns5.xserver.jp | ||||||
| TXT | v=spf1 +a:sv16645.xserver.jp +a:sysdev.net +mx include:spf.sender.xserver.jp ... | ||||||
| SOA | ns1.xserver.jproot@xserver.jp serial=0 | ||||||
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=1789387143 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
11 records (6 active, 5 former)
○NSns1.sedoparking.com2015-08-05 → 2017-04-01 · 4 obs
● 2017-04-01 04:29:06
○ 2026-09-11 11:17:34
○ 2026-09-14 12:34:16
●NSns1.xserver.jp2026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
○NSns2.sedoparking.com2015-08-05 → 2017-04-01 · 4 obs
● 2017-04-01 04:29:06
○ 2026-09-11 11:17:34
○ 2026-09-14 12:34:16
●NSns2.xserver.jp2026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
●NSns3.xserver.jp2026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
●NSns4.xserver.jp2026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
●NSns5.xserver.jp2026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
○MXlocalhost2017-04-01 → 2017-04-01 · 4 obs
● 2017-04-01 04:29:06
○ 2026-09-11 11:17:34
○ 2026-09-14 12:34:16
○MXmail.nickstel.com2015-08-05 → 2016-07-17 · 4 obs
● 2016-07-17 05:40:58
○ 2017-04-01 04:29:06
○ 2026-09-14 12:34:16
○A72.52.4.1192015-08-05 → 2017-04-01 · 4 obs
● 2017-04-01 04:29:06
○ 2026-09-11 11:17:34
○ 2026-09-14 12:34:16
●A85.131.213.262026-09-11 → 2026-09-14 · 3 obs
● 2026-09-11 11:17:34
● 2026-09-14 12:34:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | f.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net... | - |
| sysdev.net | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.247
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysdev.net (unsigned zone)
⏱️ Timing
Total: 1323ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.213.26 |
| NS | 5 | ns1.xserver.jp, ns3.xserver.jp... |
| TXT | 1 | v=spf1 +a:sv16645.xserver.jp +a:sysdev.n |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
IP Addresses
sysdev.net points to a single IP number: 85.131.213.26.
Additional host names — futagonoane.com, ichikawa-awajishima.com, _dc-mx.ebd633fb0e25.naenote.net and two others — share IP numbers with sysdev.net.
Name Servers
Delegation for sysdev.net is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
There is at least partial name server overlap between sysdev.net and other domains — yobouigaku-center.com, tsrom-wood.com, legaldirect.jp and two more among them.
These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.
Host names with three IP numbers:
ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names pointing to a single IP address:
ns2.xserver.jp points to 35.72.43.26.
ns3.xserver.jp points to 202.226.36.247.