`caogenzhuxue.com`

DNSSEC	⚠️ Not signed
A	43.198.239.89^{🇭🇰 Amazon43.198.0.0/15 EC2 HKG Prefix}
		PTR	`ec2-43-198-239-89.ap-east-1.compute.amazonaws.com`
NS	`a7.share-dns.com` ⭐ ⚠️ Not in parent delegation
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`a.share-dns.com` ⚠️ Not in zone NS records
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b.share-dns.net` ⚠️ Not in zone NS records
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`b7.share-dns.net` ⚠️ Not in parent delegation
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`a.share-dns.com`master@share-dns.com serial=1780836252

`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=1786082629

📈 Tranco rank: #689,506

Same first word

caogenzhuxue.com

DNS History

9 records (5 active, 4 former)

●NSa.share-dns.com2026-06-15 → 2026-08-07 · 3 obs

○ 2017-06-28 03:16:22
● 2026-06-15 21:20:00
● 2026-08-07 06:14:02

●NSa7.share-dns.com2026-06-15 → 2026-08-07 · 3 obs

○ 2017-06-28 03:16:22
● 2026-06-15 21:20:00
● 2026-08-07 06:14:02

●NSb.share-dns.net2026-06-15 → 2026-08-07 · 3 obs

○ 2017-06-28 03:16:22
● 2026-06-15 21:20:00
● 2026-08-07 06:14:02

●NSb7.share-dns.net2026-06-15 → 2026-08-07 · 3 obs

○ 2017-06-28 03:16:22
● 2026-06-15 21:20:00
● 2026-08-07 06:14:02

○NSns13.xincache.com2015-08-20 → 2017-06-28 · 4 obs

● 2015-08-20 16:07:48
● 2017-06-28 03:16:22
○ 2026-06-15 21:20:00
○ 2026-08-07 06:14:02

○NSns14.xincache.com2015-08-20 → 2017-06-28 · 4 obs

● 2015-08-20 16:07:48
● 2017-06-28 03:16:22
○ 2026-06-15 21:20:00
○ 2026-08-07 06:14:02

○A120.133.3.502017-06-28 → 2017-06-28 · 4 obs

○ 2016-09-18 08:30:38
● 2017-06-28 03:16:22
○ 2026-06-15 21:20:00
○ 2026-08-07 06:14:02

○A218.20.254.2462015-08-20 → 2016-09-18 · 4 obs

● 2015-08-20 16:07:48
● 2016-09-18 08:30:38
○ 2017-06-28 03:16:22
○ 2026-08-07 06:14:02

●A43.198.239.892026-06-15 → 2026-08-07 · 3 obs

○ 2017-06-28 03:16:22
● 2026-06-15 21:20:00
● 2026-08-07 06:14:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
caogenzhuxue.com	b7.share-dns.net, a7.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.52.239

NS records: b7.share-dns.net, a7.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caogenzhuxue.com (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`43.198.239.89`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a7.share-dns.com)

Analysis

IP Addresses

caogenzhuxue.com points to a single IP number: 43.198.239.89.

Additional host names — jarol-iot.com, xinyangjk.com, bdzhixian.com and two others — share IP numbers with caogenzhuxue.com.

Name Servers

caogenzhuxue.com has four authoritative name servers: a7.share-dns.com, a.share-dns.com, b7.share-dns.net and b.share-dns.net.

At least some of caogenzhuxue.com's name servers are shared with other domains, for example hunghaohk.com, 4d495246daab15a8.com, 16ads.com and two more.

These name servers tend to co-occur with a4.share-dns.com, b4.share-dns.net, a11.share-dns.com and 7 other name servers in the same DNS delegations.

a7.share-dns.com and a.share-dns.com each resolve to 172.64.53.25, while b7.share-dns.net and b.share-dns.net each resolve to 172.64.52.239.

a7.share-dns.com and a.share-dns.com are host names that each point to 172.64.53.25 IP addresses.

b7.share-dns.net and b.share-dns.net are host names that each point to 172.64.52.239 IP addresses.

caogenzhuxue.com - robtex.com