`cztxsb.com`

DNSSEC	⚠️ Not signed
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}
			PTR	`ip-172-64-53-25.defastlink.net`
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}
			PTR	`ip-172-64-53-25.defastlink.net`
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}
			PTR	`ip-172-64-52-239.defastlink.net`
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}
			PTR	`ip-172-64-52-239.defastlink.net`
SOA	`a.share-dns.com`master@share-dns.com serial=1769570979

`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=1771291435

Subdomains

www.cztxsb.com

Same first word

cztxsb.com

Similar names

btcxzs.com

szxtcb.com

xcsztb.com

zctxsb.cn

xcsztb.com.cn

DNS History

8 records (4 active, 4 former)

●NSa.share-dns.com2026-03-15 → 2026-03-23 · 3 obs

○ 2017-10-06 22:34:30
● 2026-03-15 20:48:10
● 2026-03-23 22:54:10

●NSa7.share-dns.com2026-03-15 → 2026-03-23 · 3 obs

○ 2017-10-06 22:34:30
● 2026-03-15 20:48:10
● 2026-03-23 22:54:10

●NSb.share-dns.net2026-03-15 → 2026-03-23 · 3 obs

○ 2017-10-06 22:34:30
● 2026-03-15 20:48:10
● 2026-03-23 22:54:10

●NSb7.share-dns.net2026-03-15 → 2026-03-23 · 3 obs

○ 2017-10-06 22:34:30
● 2026-03-15 20:48:10
● 2026-03-23 22:54:10

○NSf1g1ns1.dnspod.net2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 15:19:06
○ 2017-10-06 22:34:30
○ 2026-03-23 22:54:10

○NSns1.cnolnic.com2017-10-06 → 2017-10-06 · 4 obs

○ 2016-12-18 15:19:06
● 2017-10-06 22:34:30
○ 2026-03-15 20:48:10
○ 2026-03-23 22:54:10

○NSns2.cnolnic.com2017-10-06 → 2017-10-06 · 4 obs

○ 2016-12-18 15:19:06
● 2017-10-06 22:34:30
○ 2026-03-15 20:48:10
○ 2026-03-23 22:54:10

○CNAMEzgsj02.czqingzhifeng.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 15:19:06
○ 2017-10-06 22:34:30
○ 2026-03-23 22:54:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net...	-
cztxsb.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 cztxsb.com (unsigned zone)

⏱️ Timing

Total: 309ms | Queries: -

📄 Records

Type	Count	Sample Data
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

Hierarchy

cztxsb.com is the parent of www.cztxsb.com.

Name Servers

cztxsb.com is delegated to four name servers: a7.share-dns.com, a.share-dns.com, b7.share-dns.net and b.share-dns.net.

cztxsb.com at least partially shares name servers with other domains, for instance std888.com, jxwhzt.com, jngnqy.com, bteqt.com and hljkaifeng.com.