`dc3721.com`

	CNAME	`dc3721com.h330.000pc.net`
	CNAME	`h330-cdn.72dns.net`
	CNAME	`cdnc330.72dns.net`
	DNSSEC	⚠️ Not signed

`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=1778612551

Same first word

dc3721.com

DNS History

10 records (3 active, 7 former)

●NSdns21.hichina.com2026-05-12 → 2026-05-12 · 3 obs

○ 2017-11-09 09:03:34
● 2026-05-12 19:24:50
● 2026-05-12 19:24:54

●NSdns22.hichina.com2026-05-12 → 2026-05-12 · 3 obs

○ 2017-11-09 09:03:34
● 2026-05-12 19:24:50
● 2026-05-12 19:24:54

○NSns7.72dns.com2015-07-15 → 2017-11-09 · 4 obs

● 2015-07-15 21:16:44
● 2017-11-09 09:03:34
○ 2026-05-12 19:24:50
○ 2026-05-12 19:24:54

○NSns8.72dns.com2015-07-15 → 2017-11-09 · 4 obs

● 2015-07-15 21:16:44
● 2017-11-09 09:03:34
○ 2026-05-12 19:24:50
○ 2026-05-12 19:24:54

○A121.201.21.962016-12-30 → 2017-11-09 · 5 obs

○ 2015-12-05 12:01:14
● 2016-12-30 20:34:44
● 2017-11-09 09:03:34
○ 2026-05-12 19:24:50
○ 2026-05-12 19:24:54

○A125.88.190.552015-07-15 → 2015-07-15 · 3 obs

● 2015-07-15 21:16:44
○ 2017-11-09 09:03:34
○ 2026-05-12 19:24:54

○A222.73.144.1522015-12-05 → 2015-12-05 · 4 obs

○ 2015-07-15 21:16:44
● 2015-12-05 12:01:14
○ 2016-12-30 20:34:44
○ 2026-05-12 19:24:54

○CNAME57fe9c3325d6080066be6898bd8c2f9d.dnspao.com2015-12-05 → 2015-12-05 · 4 obs

○ 2015-07-15 21:16:44
● 2015-12-05 12:01:14
○ 2016-01-26 00:43:32
○ 2026-05-12 19:24:54

○CNAMEdc3721com.h225.72dns.net2015-07-15 → 2015-12-05 · 4 obs

● 2015-07-15 21:16:44
● 2015-12-05 12:01:14
○ 2016-01-26 00:43:32
○ 2026-05-12 19:24:54

●CNAMEdc3721com.h330.000pc.net2026-05-12 → 2026-05-12 · 3 obs

○ 2016-01-26 00:43:32
● 2026-05-12 19:24:50
● 2026-05-12 19:24:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dc3721.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 dc3721.com (unsigned zone)

⏱️ Timing

Total: 2713ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns21.hichina.com, dns22.hichina.com`
CNAME	1	`dc3721com.h330.000pc.net`
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...)

dc3721.com - robtex.com

dc3721.com

com