`coupling-agent.com`

DNSSEC	⚠️ Not signed
NS	`ns1.chinanetsun.com` ⭐
		A	240e:96c:200:2e03::7^{🇨🇳 SHANGHAITELECOM240e:96c::/32 Chinanet Shanghai}
		A	180.235.66.112^{🇨🇳 SHANGHAITELECOM180.235.64.0/22 Chinanet Shanghai}
NS	`ns2.chinanetsun.com`
		A	240e:96c:200:2e03::70^{🇨🇳 SHANGHAITELECOM240e:96c::/32 Chinanet Shanghai}
		A	222.73.8.7^{🇨🇳 SHANGHAITELECOM222.73.8.0/21 SHIDC}
SOA	`ns1.chinanetsun.com`task@netsun.com 2010-09-14 #3

`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=1777235696

Same first word

coupling-agent.com

DNS History

2 records (2 active, 0 former)

●NSns1.chinanetsun.com2015-06-17 → 2026-04-26 · 2 obs

● 2015-06-17 20:24:32
● 2026-04-26 20:37:50

●NSns2.chinanetsun.com2015-06-17 → 2026-04-26 · 2 obs

● 2015-06-17 20:24:32
● 2026-04-26 20:37:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
coupling-agent.com	ns1.chinanetsun.com, ns2.chinanetsun.com	4 records

✅ Authoritative Response

Server:222.73.8.7

NS records: ns1.chinanetsun.com, ns2.chinanetsun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coupling-agent.com (unsigned zone)

⏱️ Timing

Total: 493ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns1.chinanetsun.com, ns2.chinanetsun.com`
SOA	1	`ns1.chinanetsun.com task.netsun.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.chinanetsun.com, ns1.chinanetsun.com, ns2.chinanetsun.com...)

Analysis

Name Servers

coupling-agent.com is delegated to two name servers: ns1.chinanetsun.com and ns2.chinanetsun.com.

coupling-agent.com uses the same name server setup as other domains, including xn--4jzr08c.com, hfagro.com, yunjianbao.com.cn, greemac.com and blechem.com.

Host names with two IP numbers:

ns1.chinanetsun.com points to 240e:96c:200:2e03::7 and 180.235.66.112.

ns2.chinanetsun.com points to 240e:96c:200:2e03::70 and 222.73.8.7.

coupling-agent.com - robtex.com