🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`linuxmooc.com`

DNSSEC	⚠️ Not signed
A	47.92.136.83^{🇨🇳 Alibaba-Cloud47.92.0.0/15 CT BeiJing IDC}
NS	`dns9.hichina.com` ⭐ ⚠️ Not in parent delegation
		A	2408:4009:501::17^{🇨🇳 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	`dns10.hichina.com` ⚠️ Not in parent delegation
		A	2408:4009:501::18^{🇨🇳 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,}
NS	`dns13.hichina.com` ⚠️ Not in zone NS records
		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` ⚠️ Not in zone NS records
		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,}
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-08-18 #13

`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=1788638308

Subdomains

www.linuxmooc.com

Same first word

linuxmooc.com

Similar names

columnixo.com

nocomixul.xyz

Previous names

Next names

DNS History

6 records (5 active, 1 former)

●NSdns10.hichina.com2016-12-19 → 2026-09-05 · 2 obs

● 2016-12-19 16:47:30
● 2026-09-05 20:21:44

●NSdns13.hichina.com2026-08-26 → 2026-09-05 · 3 obs

○ 2016-12-19 16:47:30
● 2026-08-26 18:08:14
● 2026-09-05 20:21:44

●NSdns14.hichina.com2026-08-26 → 2026-09-05 · 3 obs

○ 2016-12-19 16:47:30
● 2026-08-26 18:08:14
● 2026-09-05 20:21:44

●NSdns9.hichina.com2016-12-19 → 2026-09-05 · 2 obs

● 2016-12-19 16:47:30
● 2026-09-05 20:21:44

●A47.92.136.832026-08-26 → 2026-09-05 · 3 obs

○ 2017-11-08 10:41:06
● 2026-08-26 18:08:14
● 2026-09-05 20:21:44

○A59.110.160.2192017-11-08 → 2017-11-08 · 3 obs

● 2017-11-08 10:41:06
○ 2026-08-26 18:08:14
○ 2026-09-05 20:21:44

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:120.76.107.42

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxmooc.com (unsigned zone)

⏱️ Timing

Total: 774ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.92.136.83`
NS	2	`dns9.hichina.com, dns10.hichina.com`
SOA	1	`dns9.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

linuxmooc.com is the parent zone for www.linuxmooc.com.

IP Addresses

linuxmooc.com resolves to one IP address: 47.92.136.83.

Name Servers

The authoritative name servers for linuxmooc.com are dns10.hichina.com, dns13.hichina.com, dns14.hichina.com and dns9.hichina.com.

linuxmooc.com partially shares its NS delegation with several other domains, including dreamu.cc, wydhg.com, xbud.run and two others.

These name servers are regularly seen alongside expirens3.hichina.com and expirens4.hichina.com as name servers.

Hostnames that resolve to 9 IP addresses:

dns10.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.

dns13.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.

dns14.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.

dns9.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.

Host names pointing to 39.96.153.41 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 39.96.153.51 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 47.118.199.201 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 47.118.199.211 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 120.76.107.41 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 120.76.107.51 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 139.224.142.111 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 139.224.142.121 IP addresses: dns10.hichina.com and dns14.hichina.com.

Host names pointing to 39.96.153.42 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 39.96.153.52 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 47.118.199.202 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 47.118.199.212 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 120.76.107.42 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 120.76.107.52 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 139.224.142.112 IP addresses: dns13.hichina.com and dns9.hichina.com.

Host names pointing to 139.224.142.122 IP addresses: dns13.hichina.com and dns9.hichina.com.

linuxmooc.com - robtex.com

linuxmooc.com

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