sysdef.net - dns.ninja

`sysdef.net`

DNSSEC	⚠️ Not signed
A	180.76.132.8^{🇨🇳 Baidu180.76.128.0/19}
NS	`ns1.cnolnic.net` ⭐
		A	240c:4082:0:5d80::2^{🇨🇳 Baidu240c:4082::/32}
		A	106.13.136.254^{🇨🇳 Baidu106.13.128.0/19 AS38365}
		A	182.61.7.97^{🇨🇳 Baidu182.61.0.0/19}
NS	`ns2.cnolnic.net`
		A	240c:4081:8000:1702::3^{🇨🇳 Baidu240c:4081::/32}
		A	106.12.41.177^{🇨🇳 Baidu106.12.32.0/19}
		A	180.76.132.69^{🇨🇳 Baidu180.76.128.0/19}
MX	`mxa405a.chinaemail.cn` ⭐
MX	`mx405a.chinaemail.cn`⁽¹⁰⁾
		A	43.128.31.66^{🇭🇰 TENCENT-NET-AP-CN43.128.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	43.129.30.92^{🇭🇰 TENCENT-NET-AP-CN43.129.24.0/21}
		A	43.135.96.239^{🇭🇰 TENCENT-NET-AP-CN43.135.64.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES}
		A	159.138.140.216^{🇭🇰 HWCSNET159.138.128.0/20 HUAWEI INTERNATIONAL PTE. LTD. 15A Changi Business Park Central 1 Eightrium 03-03/04}
TXT	`v=spf1 include:spf.chinaemail.cn -all`
SOA	`ns1.cnolnic.net`root@cnolnic.net 2006-11-24 #1

`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.net`nstld@verisign-grs.com serial=1782634855

Same first word

sysdef.xyz

sysdef.net

sysdef.de

sysdef.com

sysdef.fr

Similar names

defsys.eu

defsys.ca

defsys.net

defsys.co.nz

defsys.co.in

defsys.com

defsys.services

efssyd.org

defsys.digital

sfdyes.com

defsys.com.au

defsys.email

efssyd.com

fedsys.com

DNS History

9 records (5 active, 4 former)

○NSdns23.hichina.com2015-08-19 → 2018-05-26 · 4 obs

● 2015-08-19 00:32:56
● 2018-05-26 22:02:36
○ 2026-02-15 17:14:56
○ 2026-06-28 08:32:10

○NSdns24.hichina.com2015-08-19 → 2018-05-26 · 4 obs

● 2015-08-19 00:32:56
● 2018-05-26 22:02:36
○ 2026-02-15 17:14:56
○ 2026-06-28 08:32:10

●NSns1.cnolnic.net2026-02-15 → 2026-06-28 · 3 obs

○ 2018-05-26 22:02:36
● 2026-02-15 17:14:56
● 2026-06-28 08:32:10

●NSns2.cnolnic.net2026-02-15 → 2026-06-28 · 3 obs

○ 2018-05-26 22:02:36
● 2026-02-15 17:14:56
● 2026-06-28 08:32:10

●MXmx405a.chinaemail.cn2015-08-19 → 2026-06-28 · 5 obs

● 2015-08-19 00:32:56
● 2026-04-08 17:58:42
○ 2026-04-09 13:16:24
● 2026-04-24 23:24:12
● 2026-06-28 08:32:10

●MXmxa405a.chinaemail.cn2015-08-19 → 2026-06-28 · 5 obs

● 2015-08-19 00:32:56
● 2026-04-08 17:58:42
○ 2026-04-09 13:16:24
● 2026-04-24 23:24:12
● 2026-06-28 08:32:10

○A118.192.28.1132015-08-19 → 2016-06-30 · 4 obs

● 2015-08-19 00:32:56
● 2016-06-30 09:12:06
○ 2018-05-26 22:02:36
○ 2026-06-28 08:32:10

○A180.76.132.642018-05-26 → 2018-05-26 · 4 obs

○ 2016-06-30 09:12:06
● 2018-05-26 22:02:36
○ 2026-02-15 17:14:56
○ 2026-06-28 08:32:10

●A180.76.132.82026-02-15 → 2026-06-28 · 3 obs

○ 2018-05-26 22:02:36
● 2026-02-15 17:14:56
● 2026-06-28 08:32:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sysdef.net	ns1.cnolnic.net, ns2.cnolnic.net	6 records

✅ Authoritative Response

Server:106.12.41.177

NS records: ns1.cnolnic.net, ns2.cnolnic.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysdef.net (unsigned zone)

⏱️ Timing

Total: 3487ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`180.76.132.8`
NS	2	`ns1.cnolnic.net, ns2.cnolnic.net`
MX	2	`mx405a.chinaemail.cn (pri: 10), mxa405a.chinaemail.cn (pri: 5)`
TXT	1	`v=spf1 include:spf.chinaemail.cn -all`
SOA	1	`ns1.cnolnic.net root.cnolnic.net`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.cnolnic.net, ns1.cnolnic.net, ns1.cnolnic.net...)

Analysis

IP Addresses

sysdef.net points to a single IP number: 180.76.132.8.

Additional host names — darenxm.com, txyl.cn, dinbeu.com and two others — share IP numbers with sysdef.net.

Name Servers

sysdef.net is served by two delegated name servers, ns1.cnolnic.net and ns2.cnolnic.net.

sysdef.net shares its name server setup with other domains, including driedfruit.cn, yqxxjy.com, tsrchb.com and two others.

ns1.cnolnic.net and ns2.cnolnic.net each have three IP addresses — ns1.cnolnic.net directs to 106.13.136.254, 182.61.7.97 and 240c:4082:0:5d80::2; ns2.cnolnic.net directs to 106.12.41.177, 180.76.132.69 and 240c:4081:8000:1702::3.

Mail Servers

sysdef.net has two mail servers: mx405a.chinaemail.cn and mxa405a.chinaemail.cn.

sysdef.net shares the same mail server setup as other domains, including dongxinchemical.com, tzcd.cc, zjhd-hub.com and two others.

sysdef.net has mail servers in common with other domains — for example xxyb.com and zjlanxuan.com.

Host names resolving to four IP addresses:

mx405a.chinaemail.cn has four IP addresses: 43.128.31.66, 43.129.30.92, 43.135.96.239 and 159.138.140.216.