`12306ka.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=1774642367

Same first word

12306ka.com

DNS History

8 records (3 active, 5 former)

○NSa.share-dns.com2026-02-19 → 2026-02-19 · 4 obs

○ 2018-10-09 02:31:18
● 2026-02-19 11:18:42
● 2026-02-19 14:05:02
○ 2026-03-27 20:39:42

○NSb.share-dns.net2026-02-19 → 2026-02-19 · 4 obs

○ 2018-10-09 02:31:18
● 2026-02-19 11:18:42
● 2026-02-19 14:05:02
○ 2026-03-27 20:39:42

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

○ 2026-02-19 14:05:02
● 2026-03-27 20:39:42

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

○ 2026-02-19 14:05:02
● 2026-03-27 20:39:42

○NSns1.bdydns.cn2018-10-09 → 2018-10-09 · 3 obs

● 2018-10-09 02:31:18
○ 2026-02-19 11:18:42
○ 2026-03-27 20:39:42

○NSns2.bdydns.cn2018-10-09 → 2018-10-09 · 3 obs

● 2018-10-09 02:31:18
○ 2026-02-19 11:18:42
○ 2026-03-27 20:39:42

○A38.14.241.1752026-02-19 → 2026-02-19 · 3 obs

● 2026-02-19 11:18:42
● 2026-02-19 14:05:02
○ 2026-03-27 20:39:42

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

● 2026-03-27 20:39:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
12306ka.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 12306ka.com (unsigned zone)

⏱️ Timing

Total: 678ms | 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

12306ka.com points to IP number: 172.65.190.172.

Other host names, for instance 0syn.com and exp.gs-cdn.com, share IP numbers with 12306ka.com.

12306ka.com - robtex.com

12306ka.com

com