`gtcedu.com`

DNSSEC	⚠️ Not signed
A	14.18.112.23^{🇨🇳 CHINANET-Guangdong-GuangZhou-IDC14.18.112.0/22 CloudVsp.Inc-HYC-double - GZIDC Network unicast}
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,}
SOA	`dns17.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=1774460487

Subdomains

www.gtcedu.com

Same first word

gtcedu.com

Similar names

gudtec.com

tgcedu.com

dugtec.com

cdgute.com

DNS History

10 records (3 active, 7 former)

●NSdns17.hichina.com2026-02-16 → 2026-03-25 · 3 obs

○ 2020-01-15 15:29:40
● 2026-02-16 13:34:08
● 2026-03-25 17:49:28

●NSdns18.hichina.com2026-02-16 → 2026-03-25 · 3 obs

○ 2020-01-15 15:29:40
● 2026-02-16 13:34:08
● 2026-03-25 17:49:28

○NSdns21.hichina.com2015-06-18 → 2016-05-03 · 4 obs

● 2015-06-18 14:46:02
● 2016-05-03 05:43:12
○ 2017-02-11 02:23:50
○ 2026-03-25 17:49:28

○NSdns22.hichina.com2015-06-18 → 2016-05-03 · 4 obs

● 2015-06-18 14:46:02
● 2016-05-03 05:43:12
○ 2017-02-11 02:23:50
○ 2026-03-25 17:49:28

○NSn3503.ns.yunjiasu.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-05-03 05:43:12
● 2017-02-11 02:23:50
○ 2020-01-15 15:29:40
○ 2026-03-25 17:49:28

○NSn515.ns.yunjiasu.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-05-03 05:43:12
● 2017-02-11 02:23:50
○ 2020-01-15 15:29:40
○ 2026-03-25 17:49:28

○NSvip1.alidns.com2020-01-15 → 2020-01-15 · 4 obs

○ 2017-02-11 02:23:50
● 2020-01-15 15:29:40
○ 2026-02-16 13:34:08
○ 2026-03-25 17:49:28

○NSvip2.alidns.com2020-01-15 → 2020-01-15 · 4 obs

○ 2017-02-11 02:23:50
● 2020-01-15 15:29:40
○ 2026-02-16 13:34:08
○ 2026-03-25 17:49:28

○MXmx.mail.ym.163.com2015-06-18 → 2017-02-11 · 4 obs

● 2015-06-18 14:46:02
● 2017-02-11 02:23:50
○ 2020-01-15 15:29:40
○ 2026-03-25 17:49:28

●A14.18.112.232026-02-16 → 2026-03-25 · 2 obs

● 2026-02-16 13:34:08
● 2026-03-25 17:49:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
gtcedu.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 gtcedu.com (unsigned zone)

⏱️ Timing

Total: 3491ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`14.18.112.23`
NS	2	`dns18.hichina.com, dns17.hichina.com`
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

Hierarchy

gtcedu.com is the parent of www.gtcedu.com.

IP Addresses

gtcedu.com points to IP number 14.18.112.23.

Other host names for example xn--2jsp8fm22aoyv.cn, www.xn--2jsp8fm22aoyv.cn and gtc-china.cn share IP numbers with gtcedu.com.

Name Servers

gtcedu.com is delegated to two name servers: dns17.hichina.com and dns18.hichina.com.

gtcedu.com uses the same name server setup as other domains such as yiermei.cn, changhaohometex.com, goldenlove.com, szyingyang.com and nesc.work.

gtcedu.com shares name servers with other domains at least partially, for example baozy.com, tulaoda.com.cn, xiapeng.com, egbfe.xyz and tuohan.cn.

These name servers are commonly used together with expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Host names with nine IP numbers:

dns17.hichina.com points to: 2408:4009:501::25, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.

dns18.hichina.com points to: 2408:4009:501::26, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

gtcedu.com - robtex.com

gtcedu.com

com