mdnsys.com - dns.ninja

`mdnsys.com`

DNSSEC	⚠️ Not signed
NS	`ns19.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns20.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
SOA	`ns19.xincache.com`enterprise1dnsadmin@dnspod.com serial=1576598417

`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.net`nstld@verisign-grs.com serial=1783746457

Same first word

mdnsys.com

Similar names

mndsys.com

ynsdsm.com

nysdsm.com

symnds.com

mydnss.com

mysnds.com

dysmns.com

syndsm.com

dmnsys.com

mssdyn.com

sdsnmy.com

nsydms.com

symnds.net

dnmsys.com

yndssm.com

DNS History

8 records (4 active, 4 former)

○NSns13.xincache.com2015-07-17 → 2016-07-12 · 4 obs

● 2015-07-17 10:19:28
● 2016-07-12 02:34:34
○ 2026-04-21 22:49:58
○ 2026-07-11 05:19:06

○NSns14.xincache.com2015-07-17 → 2016-07-12 · 4 obs

● 2015-07-17 10:19:28
● 2016-07-12 02:34:34
○ 2026-04-21 22:49:58
○ 2026-07-11 05:19:06

●NSns19.xincache.com2026-04-21 → 2026-07-11 · 3 obs

○ 2016-07-12 02:34:34
● 2026-04-21 22:49:58
● 2026-07-11 05:19:06

●NSns20.xincache.com2026-04-21 → 2026-07-11 · 3 obs

○ 2016-07-12 02:34:34
● 2026-04-21 22:49:58
● 2026-07-11 05:19:06

○MXbf-mail-g1.xinnetdns.com2015-07-17 → 2016-07-12 · 4 obs

● 2015-07-17 10:19:28
● 2016-07-12 02:34:34
○ 2026-04-21 22:49:58
○ 2026-07-11 05:19:06

○MXmx.exmail.sina.com2015-07-17 → 2016-07-12 · 4 obs

● 2015-07-17 10:19:28
● 2016-07-12 02:34:34
○ 2026-04-21 22:49:58
○ 2026-07-11 05:19:06

●MXmxbiz1.qq.com2026-04-21 → 2026-07-11 · 3 obs

○ 2016-07-12 02:34:34
● 2026-04-21 22:49:58
● 2026-07-11 05:19:06

●MXmxbiz2.qq.com2026-04-21 → 2026-07-11 · 3 obs

○ 2016-07-12 02:34:34
● 2026-04-21 22:49:58
● 2026-07-11 05:19:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mdnsys.com	ns19.xincache.com, ns20.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns19.xincache.com, ns20.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mdnsys.com (unsigned zone)

⏱️ Timing

Total: 57ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns20.xincache.com, ns19.xincache.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`ns19.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns19.xincache.com, ns19.xincache.com, ns19.xincache.com...)

Analysis

Name Servers

The NS records for mdnsys.com delegate to ns19.xincache.com and ns20.xincache.com.

mdnsys.com uses the same name servers as several other domains — among them 990885.com, hbsr.com.cn, doubleheroparts.com and two more.

mdnsys.com has at least partial name server overlap with other domains, such as okeykids.com, ycjjjc.gov.cn, nywz.net and two others.

It is common to see these name servers used together with name servers ns11.xincache.com and ns12.xincache.com.

Hostnames that resolve to 8 IP addresses:

ns19.xincache.com maps to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 additional IP addresses.

Hostnames that resolve to 7 IP addresses:

ns20.xincache.com maps to 1.12.0.1, 36.155.149.176, 112.80.181.111 and 4 additional IP addresses.

Mail Servers

Mail for mdnsys.com is handled by two mail servers — mxbiz1.qq.com and mxbiz2.qq.com.

mdnsys.com uses an identical mail server configuration to several other domains — among them streethut.com.cn, simashuhui.cn, cdthink.com and two more.

mdnsys.com has at least partial mail server overlap with other domains such as yinglongkj.cn, comwinwin.com, misuland.cn and two more.