`czhongke.com`

DNSSEC	⚠️ Not signed
A	140.188.197.233^{🇺🇸 PEGTECHINC140.188.192.0/19 PEG TECH INC}
NS	`a1.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	`b1.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=1765188988

`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=1777025621

Subdomains

mail.czhongke.com

Same first word

czhongke.com

DNS History

9 records (5 active, 4 former)

●NSa.share-dns.com2026-02-18 → 2026-04-24 · 3 obs

○ 2015-10-11 00:54:52
● 2026-02-18 05:47:40
● 2026-04-24 10:14:48

●NSa1.share-dns.com2026-02-18 → 2026-04-24 · 3 obs

○ 2015-10-11 00:54:52
● 2026-02-18 05:47:40
● 2026-04-24 10:14:48

●NSb.share-dns.net2026-02-18 → 2026-04-24 · 3 obs

○ 2015-10-11 00:54:52
● 2026-02-18 05:47:40
● 2026-04-24 10:14:48

●NSb1.share-dns.net2026-02-18 → 2026-04-24 · 3 obs

○ 2015-10-11 00:54:52
● 2026-02-18 05:47:40
● 2026-04-24 10:14:48

○NSdns7.hichina.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 03:02:26
○ 2015-10-11 00:54:52
○ 2026-04-24 10:14:48

○NSdns8.hichina.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 03:02:26
○ 2015-10-11 00:54:52
○ 2026-04-24 10:14:48

○MXmail.czhongke.com2008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 03:02:26
○ 2015-10-11 00:54:52
○ 2026-04-24 10:14:48

●A140.188.197.2332026-02-18 → 2026-04-24 · 3 obs

○ 2015-10-11 00:54:52
● 2026-02-18 05:47:40
● 2026-04-24 10:14:48

○A211.144.68.662008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 03:02:26
○ 2015-10-11 00:54:52
○ 2026-04-24 10:14:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
czhongke.com	b1.share-dns.net, a1.share-dns.com	1 record

✅ Authoritative Response

Server:172.64.52.239

NS records: b1.share-dns.net, a1.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for czhongke.com (unsigned zone)

⏱️ Timing

Total: 275ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`140.188.197.233`
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 (a1.share-dns.com)

Analysis

Hierarchy

The parent of mail.czhongke.com is czhongke.com.

IP Addresses

czhongke.com points to an IP address: 140.188.197.233.

other host names include bleu1.com, hootom.com, zs-jq.com, asigal.com and web518.com; they share IP numbers with czhongke.com.

Name Servers

czhongke.com delegates to four name servers: a1.share-dns.com, a.share-dns.com, b1.share-dns.net and b.share-dns.net.

czhongke.com at least partially shares name servers with other domains, for instance semdv.com, mumin68.com, szdtedu.com, xyasmc.com and 551kkk.com.