`kangcheng021.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1774651467

Same first word

kangcheng021.com

DNS History

19 records (3 active, 16 former)

○NSa.share-dns.com2026-03-27 → 2026-03-27 · 1 obs

○ 2026-03-27 23:06:04

○NSa1.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSb.share-dns.net2026-03-27 → 2026-03-27 · 1 obs

○ 2026-03-27 23:06:04

○NSb2.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

●NSexpire1.gname-dns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-10-01 06:45:28
● 2026-03-27 23:06:04

●NSexpire2.gname-dns.com2026-03-27 → 2026-03-27 · 2 obs

○ 2018-10-01 06:45:28
● 2026-03-27 23:06:04

○NSj6.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSk8.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSns5.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSns8.bidns.net2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSv1.dns234.net2018-10-01 → 2018-10-01 · 3 obs

○ 2017-02-08 02:13:46
● 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○NSv2.dns234.net2018-10-01 → 2018-10-01 · 3 obs

○ 2017-02-08 02:13:46
● 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○MXmxbiz1.qq.com2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○MXmxbiz2.qq.com2015-05-06 → 2017-02-08 · 4 obs

● 2015-05-06 15:38:38
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○A107.151.226.82018-10-01 → 2018-10-01 · 3 obs

○ 2017-02-08 02:13:46
● 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○A115.159.96.1012017-02-08 → 2017-02-08 · 4 obs

○ 2016-01-25 02:40:26
● 2017-02-08 02:13:46
○ 2018-10-01 06:45:28
○ 2026-03-27 23:06:04

○A154.213.131.2132026-03-27 → 2026-03-27 · 1 obs

○ 2026-03-27 23:06:04

○A218.85.132.2322015-05-06 → 2016-01-25 · 4 obs

● 2015-05-06 15:38:38
● 2016-01-25 02:40:26
○ 2017-02-08 02:13:46
○ 2026-03-27 23:06:04

●CNAMEexp.gs-cdn.com2026-03-27 → 2026-03-27 · 1 obs

● 2026-03-27 23:06:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
kangcheng021.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kangcheng021.com (unsigned zone)

⏱️ Timing

Total: 515ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

kangcheng021.com resolves to one IP number: 172.65.190.172.

Other host names for instance 0syn.com and exp.gs-cdn.com share IP numbers with kangcheng021.com.

kangcheng021.com - robtex.com