`51cdb.com`

	CNAME	`bili04jiqun7cdn03.cdn.dun7788.com`
	CNAME	`bili04jiqun7cdn03.cdn.dun555.com`
	DNSSEC	⚠️ Not signed
	A	149.104.32.229^{🇺🇸 CNSERVERSLLC149.104.32.0/24 KURUN CLOUD INC}

`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=1786580034

Subdomains

www.51cdb.com

Same first word

51cdb.com

Similar names

b15dc.com

dc51b.top

51dbc.com

51cbd.cn

51cbd.com

cbd51.nl

DNS History

7 records (3 active, 4 former)

○NSdns10.hichina.com2015-10-22 → 2016-04-22 · 4 obs

● 2015-10-22 03:51:46
● 2016-04-22 12:26:46
○ 2026-07-02 20:46:22
○ 2026-08-13 00:28:48

○NSdns9.hichina.com2015-10-22 → 2016-04-22 · 4 obs

● 2015-10-22 03:51:46
● 2016-04-22 12:26:46
○ 2026-07-02 20:46:22
○ 2026-08-13 00:28:48

●NSns1.dns91ns.com2026-07-02 → 2026-08-13 · 3 obs

○ 2016-04-22 12:26:46
● 2026-07-02 20:46:22
● 2026-08-13 00:28:48

●NSns2.ns91dns.com2026-07-02 → 2026-08-13 · 3 obs

○ 2016-04-22 12:26:46
● 2026-07-02 20:46:22
● 2026-08-13 00:28:48

○A108.187.185.2072016-11-30 → 2017-06-29 · 5 obs

○ 2015-10-22 03:51:46
● 2016-11-30 02:10:48
● 2017-06-29 18:42:32
○ 2026-07-02 20:46:22
○ 2026-08-13 00:28:48

○A23.27.192.1152015-06-02 → 2015-06-02 · 3 obs

● 2015-06-02 01:18:46
○ 2015-10-22 03:51:46
○ 2026-08-13 00:28:48

●CNAMEbili04jiqun7cdn03.cdn.dun7788.com2026-07-02 → 2026-08-13 · 2 obs

● 2026-07-02 20:46:22
● 2026-08-13 00:28:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net...	-
51cdb.com	ns1.dns91ns.com, ns2.ns91dns.com	12 records

✅ Authoritative Response

Server:108.187.33.203

NS records: ns1.dns91ns.com, ns2.ns91dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51cdb.com (unsigned zone)

⏱️ Timing

Total: 533ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2.ns91dns.com, ns1.dns91ns.com`
CNAME	1	`bili04jiqun7cdn03.cdn.dun7788.com`
SOA	1	`ns1.dns91ns.com root.dns91ns.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns1.dns91ns.com, ns1.dns91ns.com, ns1.dns91ns.com...)

Analysis

Hierarchy

The domain www.51cdb.com falls under the parent 51cdb.com.

IP Addresses

51cdb.com has exactly one IP address — 149.104.32.229.

Other hosts including bili04jiqun7cdn03.cdn.dun555.com, bili01jiqun7cdn01.cdn.dun555.com and bili04jiqun7cdn01.cdn.dun555.com share IP addresses with 51cdb.com.

51cdb.com - robtex.com

51cdb.com

com