coursemo.com - dns.ninja

`coursemo.com`

DNSSEC	⚠️ Not signed
A	120.77.234.131^{🇨🇳 Alibaba-Cloud120.77.128.0/17}
NS	`dns13.hichina.com` ⭐
		A	2408:4009:501::21^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns14.hichina.com`
		A	2408:4009:501::22^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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`
TXT	`globalsign-domain-verification=gJg1CqRmpGhT0E_pMFjnDA-_GAyIVbNCaJJmhnH4ku`
SOA	`dns13.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=1782385925

Subdomains

www.coursemo.com

Same first word

coursemo.com

coursemo.net

Similar names

DNS History

10 records (5 active, 5 former)

●NSdns13.hichina.com2026-03-28 → 2026-06-25 · 3 obs

○ 2017-01-28 00:04:22
● 2026-03-28 01:53:12
● 2026-06-25 11:42:34

●NSdns14.hichina.com2026-03-28 → 2026-06-25 · 3 obs

○ 2017-01-28 00:04:22
● 2026-03-28 01:53:12
● 2026-06-25 11:42:34

○NSns31.domaincontrol.com2015-11-20 → 2017-01-28 · 4 obs

● 2015-11-20 12:11:24
● 2017-01-28 00:04:22
○ 2026-03-28 01:53:12
○ 2026-06-25 11:42:34

○NSns32.domaincontrol.com2015-11-20 → 2017-01-28 · 4 obs

● 2015-11-20 12:11:24
● 2017-01-28 00:04:22
○ 2026-03-28 01:53:12
○ 2026-06-25 11:42:34

○MXmailstore1.secureserver.net2015-11-20 → 2017-01-28 · 4 obs

● 2015-11-20 12:11:24
● 2017-01-28 00:04:22
○ 2026-03-28 01:53:12
○ 2026-06-25 11:42:34

●MXmxbiz1.qq.com2026-03-28 → 2026-06-25 · 3 obs

○ 2017-01-28 00:04:22
● 2026-03-28 01:53:12
● 2026-06-25 11:42:34

●MXmxbiz2.qq.com2026-03-28 → 2026-06-25 · 3 obs

○ 2017-01-28 00:04:22
● 2026-03-28 01:53:12
● 2026-06-25 11:42:34

○MXsmtp.secureserver.net2015-11-20 → 2017-01-28 · 4 obs

● 2015-11-20 12:11:24
● 2017-01-28 00:04:22
○ 2026-03-28 01:53:12
○ 2026-06-25 11:42:34

●A120.77.234.1312026-03-28 → 2026-06-25 · 3 obs

○ 2017-01-28 00:04:22
● 2026-03-28 01:53:12
● 2026-06-25 11:42:34

○A50.63.202.592015-11-20 → 2017-01-28 · 4 obs

● 2015-11-20 12:11:24
● 2017-01-28 00:04:22
○ 2026-03-28 01:53:12
○ 2026-06-25 11:42:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
coursemo.com	dns13.hichina.com, dns14.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns13.hichina.com, dns14.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursemo.com (unsigned zone)

⏱️ Timing

Total: 510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`120.77.234.131`
NS	2	`dns14.hichina.com, dns13.hichina.com`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
TXT	2	`v=spf1 include:spf.mail.qq.com ~all, globalsign-domain-verification=gJg1CqRmp`
SOA	1	`dns13.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns13.hichina.com, dns13.hichina.com, dns13.hichina.com...)

Analysis

Hierarchy

www.coursemo.com is delegated beneath coursemo.com.

IP Addresses

coursemo.com resolves to just one IP address, 120.77.234.131.

Other host names share IP numbers with coursemo.com; www.coursemo.com is one such example.

Name Servers

coursemo.com is served by two delegated name servers, dns13.hichina.com and dns14.hichina.com.

coursemo.com shares its NS records with other domains, for example zjzjslj.com, hzdlkj.cn, kinz-pof.com and two others.

coursemo.com has name servers in common with a number of other domains — tianyigang.net, qxny.com, techmart.net and hitperson.com among them.

These name servers frequently co-occur with the name servers expirens3.hichina.com and expirens4.hichina.com.

DNS names with 9 IP addresses:

dns13.hichina.com carries IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, with 6 other addresses beyond those.

dns14.hichina.com carries IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, with 6 other addresses beyond those.

Mail Servers

coursemo.com is served by two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

Among the domains sharing a mail server setup with coursemo.com are linuxstory.org, molisan.cn, xingyugloves.com and two others.

There is at least a partial MX overlap between coursemo.com and other domains, including quickmagic.ai, jingeleather.com, mengxiang.com and two others.