`cgutech.com`

DNSSEC	⚠️ Not signed
A	203.107.45.167^{🇨🇳 Alibaba-Cloud203.107.45.0/24 Alibaba (US) Technology Co., Ltd.}
		PTR	`catl.com`
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-40.defastlink.net`
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-60.defastlink.net`
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-200.defastlink.net`
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-220.defastlink.net`
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-40.defastlink.net`
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-60.defastlink.net`
		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,}
			PTR	`ip-139-224-142-100.defastlink.net`
		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,}
			PTR	`ip-139-224-142-110.defastlink.net`
NS	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-38.defastlink.net`
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-61.defastlink.net`
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-198.defastlink.net`
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-222.defastlink.net`
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-38.defastlink.net`
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-61.defastlink.net`
		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,}
			PTR	`ip-139-224-142-98.defastlink.net`
		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,}
			PTR	`ip-139-224-142-108.defastlink.net`
MX	`mxbiz1.qq.com` ⭐
		A	203.205.147.218^{🇭🇰 TENCENT-NET-AP-CN203.205.147.0/24 Proxy-registered route object}
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
MX	`mxbiz2.qq.com`⁽¹⁰⁾
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
SOA	`dns21.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=1771291435

Subdomains

www.cgutech.com

Same first word

cgutech.com

Similar names

cugtech.com

gcutech.org

DNS History

12 records (5 active, 7 former)

●NSdns21.hichina.com2026-03-12 → 2026-03-12 · 2 obs

○ 2018-12-16 01:14:02
● 2026-03-12 06:52:44

●NSdns22.hichina.com2026-03-12 → 2026-03-12 · 2 obs

○ 2018-12-16 01:14:02
● 2026-03-12 06:52:44

○NSmain1.ns365.net2015-06-03 → 2018-12-16 · 3 obs

● 2015-06-03 02:51:52
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

○NSns3.gzidc.com2015-06-03 → 2018-12-16 · 3 obs

● 2015-06-03 02:51:52
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

○NSns3.ns365.net2015-06-03 → 2018-12-16 · 3 obs

● 2015-06-03 02:51:52
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

○NSns4.gzidc.com2015-06-03 → 2018-12-16 · 3 obs

● 2015-06-03 02:51:52
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

○NSns4.ns365.net2015-06-03 → 2018-12-16 · 3 obs

● 2015-06-03 02:51:52
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

●MXmxbiz1.qq.com2015-06-03 → 2026-03-12 · 2 obs

● 2015-06-03 02:51:52
● 2026-03-12 06:52:44

●MXmxbiz2.qq.com2015-06-03 → 2026-03-12 · 2 obs

● 2015-06-03 02:51:52
● 2026-03-12 06:52:44

○A124.172.142.22015-06-03 → 2017-01-27 · 4 obs

● 2015-06-03 02:51:52
● 2017-01-27 07:45:48
○ 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

○A124.173.127.2432018-12-16 → 2018-12-16 · 3 obs

○ 2017-01-27 07:45:48
● 2018-12-16 01:14:02
○ 2026-03-12 06:52:44

●A203.107.45.1672026-03-12 → 2026-03-12 · 2 obs

○ 2018-12-16 01:14:02
● 2026-03-12 06:52:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net...	-
cgutech.com	dns21.hichina.com, dns22.hichina.com	18 records

✅ Authoritative Response

Server: 120.76.107.40

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cgutech.com (unsigned zone)

⏱️ Timing

Total: 4043ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.107.45.167`
NS	2	`dns22.hichina.com, dns21.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)

Analysis

Hierarchy

The parent of www.cgutech.com is cgutech.com.

IP Addresses

cgutech.com points to a single IP number: 203.107.45.167.

Other host names, for instance keenyun.com, ytsolar.com, dazzle-t.com, tpk-led.com and www.corepubmed.com share IP numbers with cgutech.com.

Name Servers

cgutech.com is delegated to two name servers: dns21.hichina.com and dns22.hichina.com.

cgutech.com uses the same name server setup as other domains, for instance laksrq.com, webp2.com, cnwuye.com.cn, pblandscape.com.cn and 11kc.cn.

cgutech.com at least partially shares name servers with other domains, such as dijiji.cn and zhuolai.net and dali888.com.

these name servers are commonly used together with expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers: dns21.hichina.com points to 2408:4009:501::29, 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; dns22.hichina.com points to 2408:4009:501::30, 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.

Mail Servers

cgutech.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

cgutech.com shares the same mail server setup as other domains, including rglcdn.com, lnuo.net, fuso.cn, wxit.com and aokeo.com.

cgutech.com shares some mail servers with other domains, for example fuwu365.com, misoft.com.cn, begears.com and taobangbang.com.

Host names with two IPs:

mxbiz1.qq.com points to 203.205.147.218 and 203.205.232.191.

Host names with one IP:

mxbiz2.qq.com points to 203.205.232.191.

Host names pointing to 203.205.232.191:

mxbiz1.qq.com and mxbiz2.qq.com.

cgutech.com - robtex.com

cgutech.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cgutech.com`

`com`