`study-edu.com`

DNSSEC	⚠️ Not signed
A	47.75.9.106^{🇭🇰 Alibaba-Cloud47.75.0.0/17 Proxy-registered route object}
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,}
SOA	`dns13.hichina.com`hostmaster@hichina.com 2026-01-09 #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=1776264717

Subdomains

www.study-edu.com

Same first word

study-edu.com

DNS History

10 records (3 active, 7 former)

●NSdns13.hichina.com2026-04-07 → 2026-04-15 · 3 obs

○ 2020-03-01 00:45:08
● 2026-04-07 18:23:40
● 2026-04-15 14:55:42

●NSdns14.hichina.com2026-04-07 → 2026-04-15 · 3 obs

○ 2020-03-01 00:45:08
● 2026-04-07 18:23:40
● 2026-04-15 14:55:42

○NSdns17.hichina.com2015-08-07 → 2017-03-20 · 4 obs

● 2015-08-07 02:08:06
● 2017-03-20 07:52:38
○ 2020-03-01 00:45:08
○ 2026-04-15 14:55:42

○NSdns18.hichina.com2015-08-07 → 2017-03-20 · 4 obs

● 2015-08-07 02:08:06
● 2017-03-20 07:52:38
○ 2020-03-01 00:45:08
○ 2026-04-15 14:55:42

○NSjm1.dns.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-20 07:52:38
● 2020-03-01 00:45:08
○ 2026-04-07 18:23:40
○ 2026-04-15 14:55:42

○NSjm2.dns.com2020-03-01 → 2020-03-01 · 4 obs

○ 2017-03-20 07:52:38
● 2020-03-01 00:45:08
○ 2026-04-07 18:23:40
○ 2026-04-15 14:55:42

○MXmxn.mxhichina.com2015-11-27 → 2017-03-20 · 4 obs

● 2015-11-27 05:14:12
● 2017-03-20 07:52:38
○ 2020-03-01 00:45:08
○ 2026-04-15 14:55:42

○MXmxw.mxhichina.com2015-11-27 → 2017-03-20 · 4 obs

● 2015-11-27 05:14:12
● 2017-03-20 07:52:38
○ 2020-03-01 00:45:08
○ 2026-04-15 14:55:42

●A47.75.9.1062020-03-01 → 2026-04-15 · 3 obs

○ 2017-03-20 07:52:38
● 2020-03-01 00:45:08
● 2026-04-15 14:55:42

○A58.64.204.362015-08-07 → 2016-06-25 · 4 obs

● 2015-08-07 02:08:06
● 2016-06-25 21:35:56
○ 2017-03-20 07:52:38
○ 2026-04-15 14:55:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net, h.gtld-servers.net...	-
study-edu.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 study-edu.com (unsigned zone)

⏱️ Timing

Total: 3702ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.75.9.106`
NS	2	`dns13.hichina.com, dns14.hichina.com`
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

study-edu.com is the parent of www.study-edu.com.

IP Addresses

study-edu.com points to IP number 47.75.9.106.

For instance, other host names www.study-edu.com, www.csscoo.com, eifu.cn, suei.cn and csscoo.com share IP numbers with study-edu.com.

Name Servers

study-edu.com is delegated to two name servers: dns13.hichina.com and dns14.hichina.com.

study-edu.com uses the same name server setup as other domains such as hbakco.cn, sinjet.cn, zjjinlisheng.com, trimethylacetylchloride.com and cipe.com.cn.

study-edu.com shares name servers with other domains at least partially, for example xn--cesp9be65ia.com, yuexiuproperty.com, streams.cn, 520hgame.com and qiaoyuji.com.

These name servers are commonly used with the name servers expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers:

dns13.hichina.com points to: 2408:4009:501::21, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.

dns14.hichina.com points to: 2408:4009:501::22, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.

study-edu.com - robtex.com

study-edu.com

com