`gzcankao.com`

DNSSEC	⚠️ Not signed
A	38.238.199.13^{🇺🇸 HDHK38.238.192.0/20}
NS	`a12.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	`b12.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=1770710120

`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=1778448821

⚠️ On DNS blocklist: multi, pro, pro.plus, ultimate

Subdomains

www.gzcankao.com

Same first word

gzcankao.com

DNS History

9 records (5 active, 4 former)

●NSa.share-dns.com2026-05-10 → 2026-05-10 · 3 obs

○ 2017-01-04 20:31:16
● 2026-05-10 21:55:18
● 2026-05-10 21:55:20

●NSa12.share-dns.com2026-05-10 → 2026-05-10 · 3 obs

○ 2017-01-04 20:31:16
● 2026-05-10 21:55:18
● 2026-05-10 21:55:20

●NSb.share-dns.net2026-05-10 → 2026-05-10 · 3 obs

○ 2017-01-04 20:31:16
● 2026-05-10 21:55:18
● 2026-05-10 21:55:20

●NSb12.share-dns.net2026-05-10 → 2026-05-10 · 3 obs

○ 2017-01-04 20:31:16
● 2026-05-10 21:55:18
● 2026-05-10 21:55:20

○NSdns10.hichina.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 20:31:16
○ 2026-05-10 21:55:18
○ 2026-05-10 21:55:20

○NSdns9.hichina.com2017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 20:31:16
○ 2026-05-10 21:55:18
○ 2026-05-10 21:55:20

○A120.24.93.822017-01-04 → 2017-01-04 · 3 obs

● 2017-01-04 20:31:16
○ 2026-05-10 21:55:18
○ 2026-05-10 21:55:20

●A38.238.199.132026-05-10 → 2026-05-10 · 3 obs

○ 2017-01-04 20:31:16
● 2026-05-10 21:55:18
● 2026-05-10 21:55:20

○CNAME8v5fpkjz.advanced.yunduannode.com2026-05-10 → 2026-05-10 · 2 obs

○ 2026-05-10 21:55:18
○ 2026-05-10 21:55:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
gzcankao.com	b12.share-dns.net, a12.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b12.share-dns.net, a12.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gzcankao.com (unsigned zone)

⏱️ Timing

Total: 1706ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.238.199.13`
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 (a12.share-dns.com)

Analysis

Hierarchy

gzcankao.com is a parent of www.gzcankao.com.

IP Addresses

gzcankao.com points to a single IP address: 38.238.199.13.

Other host names, for instance www.gzcankao.com, share IP numbers with gzcankao.com.

Name Servers

gzcankao.com is delegated to four name servers: a12.share-dns.com, a.share-dns.com, b12.share-dns.net and b.share-dns.net.

At least part of the name servers for gzcankao.com are shared with other domains, for instance 35c04b6b4495.top, 1382t.com, leyolego.com, vpsoffer.com and dy243.com.