`gtcinstruments.com`

DNSSEC	⚠️ Not signed
NS	`dns25.hichina.com` ⭐
		A	2408:4009:501::33^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns26.hichina.com`
		A	2408:4009:501::34^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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	`dns25.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=1774527857

WOT: SAFE (68/100)

Same first word

gtcinstruments.com

DNS History

19 records (2 active, 17 former)

○NSdns10.parkpage.foundationapi.com2016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-20 14:41:34
● 2016-12-02 18:13:34
○ 2017-08-20 10:40:42
○ 2026-03-26 12:46:42

○NSdns11.parkpage.foundationapi.com2016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-20 14:41:34
● 2016-12-02 18:13:34
○ 2017-08-20 10:40:42
○ 2026-03-26 12:46:42

●NSdns25.hichina.com2026-02-17 → 2026-03-26 · 3 obs

○ 2017-08-20 10:40:42
● 2026-02-17 12:31:46
● 2026-03-26 12:46:42

●NSdns26.hichina.com2026-02-17 → 2026-03-26 · 3 obs

○ 2017-08-20 10:40:42
● 2026-02-17 12:31:46
● 2026-03-26 12:46:42

○NSdns9.parkpage.foundationapi.com2016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-20 14:41:34
● 2016-12-02 18:13:34
○ 2017-08-20 10:40:42
○ 2026-03-26 12:46:42

○NSns1.vhostdns2.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○NSns1.whois.com2015-05-25 → 2016-04-20 · 5 obs

○ 2009-01-19 22:36:52
● 2015-05-25 08:46:02
● 2016-04-20 14:41:34
○ 2016-12-02 18:13:34
○ 2026-03-26 12:46:42

○NSns2.vhostdns2.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○NSns2.whois.com2015-05-25 → 2016-04-20 · 5 obs

○ 2009-01-19 22:36:52
● 2015-05-25 08:46:02
● 2016-04-20 14:41:34
○ 2016-12-02 18:13:34
○ 2026-03-26 12:46:42

○NSns3.whois.com2015-05-25 → 2016-04-20 · 5 obs

○ 2009-01-19 22:36:52
● 2015-05-25 08:46:02
● 2016-04-20 14:41:34
○ 2016-12-02 18:13:34
○ 2026-03-26 12:46:42

○NSns4.whois.com2015-05-25 → 2016-04-20 · 5 obs

○ 2009-01-19 22:36:52
● 2015-05-25 08:46:02
● 2016-04-20 14:41:34
○ 2016-12-02 18:13:34
○ 2026-03-26 12:46:42

○MXmailgate10.vhostdns.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○MXmailgate11.vhostdns2.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○MXmailgate12.vhostdns3.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○MXmailgate14.vhostdns3.com2009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○A173.193.106.122015-05-25 → 2016-04-20 · 5 obs

○ 2009-01-19 22:36:52
● 2015-05-25 08:46:02
● 2016-04-20 14:41:34
○ 2016-12-02 18:13:34
○ 2026-03-26 12:46:42

○A209.99.40.2222016-12-02 → 2016-12-02 · 4 obs

○ 2016-04-20 14:41:34
● 2016-12-02 18:13:34
○ 2017-08-20 10:40:42
○ 2026-03-26 12:46:42

○A67.228.215.1362009-01-19 → 2009-01-19 · 3 obs

● 2009-01-19 22:36:52
○ 2015-05-25 08:46:02
○ 2026-03-26 12:46:42

○PTRdns11.parkpage.foundationapi.com2016-12-02 → 2016-12-02 · 3 obs

● 2016-12-02 18:13:34
○ 2017-08-20 10:40:42
○ 2026-03-26 12:46:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net...	-
gtcinstruments.com	dns25.hichina.com, dns26.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.39

NS records: dns25.hichina.com, dns26.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gtcinstruments.com (unsigned zone)

⏱️ Timing

Total: 3605ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns25.hichina.com, dns26.hichina.com`
SOA	1	`dns25.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns25.hichina.com, dns25.hichina.com, dns25.hichina.com...)

Analysis

Name Servers

Two name servers dns25.hichina.com and dns26.hichina.com handle the delegation for gtcinstruments.com.

gtcinstruments.com shares the same name server setup as other domains, for instance jinengxinglu.cn, 6kan.com, shca.gov.cn, centraltech.com and ruihangco.com.

gtcinstruments.com at least partially shares name servers with other domains, for instance wintao.com, chibi.hk, zhangkongbao.com, gdam.cn and ch-gm.com.

These name servers are commonly used with ns2.alidns.com and ns1.alidns.com.

Host names with nine IP numbers:

dns25.hichina.com points to: 2408:4009:501::33, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.

dns26.hichina.com points to: 2408:4009:501::34, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.

gtcinstruments.com - robtex.com