cnmath.com - dns.ninja

`cnmath.com`

DNSSEC	⚠️ Not signed
NS	`dns17.hichina.com` ⭐
		A	2408:4009:501::25^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.110^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns18.hichina.com`
		A	2408:4009:501::26^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.108^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`dns17.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=1785176512

Same first word

cnmath.com

Similar names

hantcm.com

ncmath.net

mnchat.com

chatnm.com

nmchat.org

tnmach.com

mathnc.com

ncmath.org

mnatch.com

mchant.com

nhtcam.com

hcamtn.com

tmchan.com

matchn.chat

htcnam.com

nmchat.cn

chnatm.com

ntmach.com

mathcn.cn

mtcahn.org

matchn.cn

mcanth.fi

thcman.com

thncam.com

mchtan.com

mathcn.com

htacnm.ca

mtachn.cn

matchn.com

tchman.de

nmatch.com

nmchat.com

DNS History

8 records (4 active, 4 former)

●NSdns17.hichina.com2015-07-20 → 2026-07-27 · 6 obs

● 2015-07-20 22:04:14
● 2016-03-16 10:59:42
○ 2016-07-14 01:35:46
○ 2017-03-28 09:20:54
● 2026-03-12 09:59:48
● 2026-07-27 18:49:08

●NSdns18.hichina.com2015-07-20 → 2026-07-27 · 6 obs

● 2015-07-20 22:04:14
● 2016-03-16 10:59:42
○ 2016-07-14 01:35:46
○ 2017-03-28 09:20:54
● 2026-03-12 09:59:48
● 2026-07-27 18:49:08

○NSf1g1ns1.dnspod.net2016-07-14 → 2017-03-28 · 5 obs

○ 2016-03-16 10:59:42
● 2016-07-14 01:35:46
● 2017-03-28 09:20:54
○ 2026-03-12 09:59:48
○ 2026-07-27 18:49:08

○NSf1g1ns2.dnspod.net2016-07-14 → 2017-03-28 · 5 obs

○ 2016-03-16 10:59:42
● 2016-07-14 01:35:46
● 2017-03-28 09:20:54
○ 2026-03-12 09:59:48
○ 2026-07-27 18:49:08

●MXmxbiz1.qq.com2026-03-12 → 2026-07-27 · 2 obs

● 2026-03-12 09:59:48
● 2026-07-27 18:49:08

●MXmxbiz2.qq.com2026-03-12 → 2026-07-27 · 2 obs

● 2026-03-12 09:59:48
● 2026-07-27 18:49:08

○A59.173.18.462015-07-20 → 2016-03-16 · 4 obs

● 2015-07-20 22:04:14
● 2016-03-16 10:59:42
○ 2016-07-14 01:35:46
○ 2026-07-27 18:49:08

○A59.173.18.482016-07-14 → 2017-03-28 · 5 obs

○ 2016-03-16 10:59:42
● 2016-07-14 01:35:46
● 2017-03-28 09:20:54
○ 2026-03-12 09:59:48
○ 2026-07-27 18:49:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cnmath.com	dns17.hichina.com, dns18.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.40

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cnmath.com (unsigned zone)

⏱️ Timing

Total: 500ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns18.hichina.com, dns17.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns17.hichina.com, dns17.hichina.com, dns17.hichina.com...)

Analysis

Name Servers

Two name servers handle the delegation for cnmath.com: dns17.hichina.com and dns18.hichina.com.

cnmath.com shares its name server setup with other domains, including sh-fig.com, shaoyup.com, rewardstw.cn and two others.

Some name servers delegated to cnmath.com are also used by other domains, notably xishihui.com and cebiaozhi.com.

Host names with 9 IP numbers:

dns17.hichina.com resolves to 39.96.153.40, 39.96.153.60 and 47.118.199.200 among others, with 6 other IP addresses in total.

dns18.hichina.com resolves to 39.96.153.38, 39.96.153.61 and 47.118.199.198 among others, with 6 other IP addresses in total.

Mail Servers

cnmath.com has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

cnmath.com shares the same mail server setup as other domains, including zjseek.com, thsems.com, timkenb2b.cn and two others.

cnmath.com shares mail servers — at least in part — with other domains, including mbzhio-tw.asia, nbyinyang.com, xunite.com and two others.