`classopen.cdhuida.com`

DNSSEC

⚠️ Not signed

`cdhuida.com`

	DNSSEC	⚠️ Not signed
	A	156.254.170.105^{🇭🇰 HKIDC-AS-AP156.254.128.0/18 ABC}
	NS	`a3.share-dns.com` ⭐ ⚠️ Not in parent delegation
	NS	`a.share-dns.com` ⚠️ Not in zone NS records
	NS	`b.share-dns.net` ⚠️ Not in zone NS records
	NS	`b3.share-dns.net` ⚠️ Not in parent delegation
	SOA	`a.share-dns.com`master@share-dns.com serial=1780987459

Same first word

classopen.com

classopen.org

Similar names

DNS History

4 records (0 active, 4 former)

○NSns1637.ztomy.com2026-04-10 → 2026-04-10 · 2 obs

● 2026-04-10 10:14:06
○ 2026-07-05 19:54:58

○NSns2637.ztomy.com2026-04-10 → 2026-04-10 · 2 obs

● 2026-04-10 10:14:06
○ 2026-07-05 19:54:58

○MX~2026-04-10 → 2026-04-10 · 2 obs

● 2026-04-10 10:14:06
○ 2026-07-05 19:54:58

○A204.11.56.372026-04-10 → 2026-04-10 · 2 obs

● 2026-04-10 10:14:06
○ 2026-07-05 19:54:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net...	-
cdhuida.com	b3.share-dns.net, a3.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.52.239

NS records: b3.share-dns.net, a3.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cdhuida.com (unsigned zone)

⏱️ Timing

Total: 521ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a3.share-dns.com)

classopen.cdhuida.com - robtex.com