linkmath.com - dns.ninja

`linkmath.com`

DNSSEC	⚠️ Not signed
A	60.247.153.205^{🇨🇳 CHINANET-SCIDC-AS-AP60.247.128.0/18 SICHUANIDC province network}
NS	`ns11.xincache.com` ⭐ ⚠️ Not in zone NS records
		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	`ns12.xincache.com` ⚠️ Not in zone NS records
		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}
NS	`ns15.xincache.com` ⚠️ Not in parent delegation
		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	`ns16.xincache.com` ⚠️ Not in parent delegation
		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	`mxa196h.chinaemail.cn` ⭐
		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}
			PTR	`brhk04.chinaemail.cn`
MX	`mx196h.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}
			PTR	`brhk04.chinaemail.cn`
TXT	`v=spf1 include:spf.chinaemail.cn -all`
SOA	`ns11.xincache.com`ns12@xincache.com serial=1756457266

`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=1783708132

Previously NS for

linkmath.com

Same first word

linkmath.com

Similar names

thinklam.com

mathlink.com

DNS History

9 records (7 active, 2 former)

○NSlinkmath.com2015-08-01 → 2017-09-24 · 4 obs

● 2015-08-01 11:43:34
● 2017-09-24 03:09:56
○ 2026-02-14 22:23:46
○ 2026-07-10 18:41:04

●NSns11.xincache.com2026-02-14 → 2026-07-10 · 3 obs

○ 2017-09-24 03:09:56
● 2026-02-14 22:23:46
● 2026-07-10 18:41:04

●NSns12.xincache.com2026-02-14 → 2026-07-10 · 3 obs

○ 2017-09-24 03:09:56
● 2026-02-14 22:23:46
● 2026-07-10 18:41:04

●NSns15.xincache.com2026-02-14 → 2026-07-10 · 3 obs

○ 2017-09-24 03:09:56
● 2026-02-14 22:23:46
● 2026-07-10 18:41:04

●NSns16.xincache.com2026-02-14 → 2026-07-10 · 3 obs

○ 2017-09-24 03:09:56
● 2026-02-14 22:23:46
● 2026-07-10 18:41:04

●MXmx196h.chinaemail.cn2015-08-01 → 2026-07-10 · 2 obs

● 2015-08-01 11:43:34
● 2026-07-10 18:41:04

●MXmxa196h.chinaemail.cn2015-08-01 → 2026-07-10 · 2 obs

● 2015-08-01 11:43:34
● 2026-07-10 18:41:04

○A59.38.126.2482016-07-05 → 2017-09-24 · 4 obs

● 2016-07-05 21:08:22
● 2017-09-24 03:09:56
○ 2026-02-14 22:23:46
○ 2026-07-10 18:41:04

●A60.247.153.2052026-02-14 → 2026-07-10 · 3 obs

○ 2017-09-24 03:09:56
● 2026-02-14 22:23:46
● 2026-07-10 18:41:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
linkmath.com	ns11.xincache.com, ns12.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linkmath.com (unsigned zone)

⏱️ Timing

Total: 520ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`60.247.153.205`
NS	2	`ns15.xincache.com, ns16.xincache.com`
MX	2	`mxa196h.chinaemail.cn (pri: 5), mx196h.chinaemail.cn (pri: 10)`
TXT	1	`v=spf1 include:spf.chinaemail.cn -all`
SOA	1	`ns11.xincache.com ns12.xincache.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns11.xincache.com, ns11.xincache.com, ns11.xincache.com...)

Analysis

IP Addresses

linkmath.com resolves to just one IP address, 60.247.153.205.

Host names such as 6i3.net, y205.6i3.net and bcnic.net share their IP numbers with linkmath.com.

Name Servers

The NS records for linkmath.com point to four name servers: ns11.xincache.com, ns12.xincache.com, ns15.xincache.com and ns16.xincache.com.

There is at least partial name server overlap between linkmath.com and other domains — exlc.cn, tengxian.gov.cn, kalaso.com.cn and two more among them.

These name servers regularly appear alongside ns13.xincache.com, ns14.xincache.com, ns19.xincache.com and 6 other name servers in NS record sets.

DNS names with 8 IP addresses:

ns11.xincache.com maps to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 additional IP addresses.

ns15.xincache.com maps to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 additional IP addresses.

DNS names with 7 IP addresses:

ns12.xincache.com maps to 1.12.0.1, 36.155.149.176, 112.80.181.111 and 4 additional IP addresses.

ns16.xincache.com maps to 1.12.0.1, 36.155.149.176, 112.80.181.111 and 4 additional IP addresses.

ns11.xincache.com and ns15.xincache.com each have 2402:4e00:1470:2::e IP addresses.

ns11.xincache.com and ns15.xincache.com each have 2402:4e00:1730::e IP addresses.

ns11.xincache.com and ns15.xincache.com each have 1.12.0.4 IP addresses.

ns11.xincache.com and ns15.xincache.com each have 36.155.149.180 IP addresses.

ns11.xincache.com and ns15.xincache.com each have 112.80.181.45 IP addresses.

ns11.xincache.com and ns15.xincache.com each have 117.89.178.173 IP addresses.

ns11.xincache.com and ns15.xincache.com each have 125.94.59.210 IP addresses.

ns11.xincache.com and ns15.xincache.com each have 129.211.176.209 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 2402:4e00:111:fff::c IP addresses.

ns12.xincache.com and ns16.xincache.com each have 1.12.0.1 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 36.155.149.176 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 112.80.181.111 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 117.89.178.184 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 129.211.176.239 IP addresses.

ns12.xincache.com and ns16.xincache.com each have 163.177.5.23 IP addresses.

Mail Servers

linkmath.com is served by two mail servers, mx196h.chinaemail.cn and mxa196h.chinaemail.cn.

Among the domains sharing a mail server setup with linkmath.com are m-test.cn, cleanman-cn.com, fitinjection.com and two others.

linkmath.com partially shares its mail servers with other domains; known examples include stovefan.com, hurryupgps.com and shwindscape.com.

The hosts mx196h.chinaemail.cn and mxa196h.chinaemail.cn each point to four IP addresses: mx196h.chinaemail.cn resolves to 43.128.31.66, 43.129.30.92, 43.135.96.239 and 159.138.140.216 and mxa196h.chinaemail.cn directs to 43.128.31.66, 43.129.30.92, 43.135.96.239 and 159.138.140.216.

mx196h.chinaemail.cn and mxa196h.chinaemail.cn each have 43.128.31.66 IP addresses.

mx196h.chinaemail.cn and mxa196h.chinaemail.cn each have 43.129.30.92 IP addresses.

mx196h.chinaemail.cn and mxa196h.chinaemail.cn each have 43.135.96.239 IP addresses.

mx196h.chinaemail.cn and mxa196h.chinaemail.cn each have 159.138.140.216 IP addresses.