`1stclass.cn`

DNSSEC	⚠️ Not signed
A	38.14.13.76^{🇺🇸 AS39847838.14.0.0/20}
NS	`a9.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	`b9.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=1769873588

`cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034546407

Same first word

1stclass.sk

1stclass.flights

1stclass.cn

1stclass.ca

1stclass.ltd

1stclass.com.vn

1stclass.tempurl.host

1stclass.net

1stclass.com.sa

1stclass.co.jp

1stclass.at

1stclass.uk.com

1stclass.immo

1stclass.co.in

DNS History

10 records (5 active, 5 former)

●NSa.share-dns.com2026-02-20 → 2026-03-24 · 3 obs

○ 2017-08-25 17:57:24
● 2026-02-20 10:03:42
● 2026-03-24 01:26:46

●NSa9.share-dns.com2026-02-20 → 2026-03-24 · 3 obs

○ 2017-08-25 17:57:24
● 2026-02-20 10:03:42
● 2026-03-24 01:26:46

●NSb.share-dns.net2026-02-20 → 2026-03-24 · 3 obs

○ 2017-08-25 17:57:24
● 2026-02-20 10:03:42
● 2026-03-24 01:26:46

●NSb9.share-dns.net2026-02-20 → 2026-03-24 · 3 obs

○ 2017-08-25 17:57:24
● 2026-02-20 10:03:42
● 2026-03-24 01:26:46

○NSdns27.hichina.com2015-06-04 → 2017-08-25 · 4 obs

● 2015-06-04 21:55:00
● 2017-08-25 17:57:24
○ 2026-02-20 10:03:42
○ 2026-03-24 01:26:46

○NSdns28.hichina.com2015-06-04 → 2017-08-25 · 4 obs

● 2015-06-04 21:55:00
● 2017-08-25 17:57:24
○ 2026-02-20 10:03:42
○ 2026-03-24 01:26:46

○MXmail.1stclass.cn2015-06-04 → 2017-08-25 · 4 obs

● 2015-06-04 21:55:00
● 2017-08-25 17:57:24
○ 2026-02-20 10:03:42
○ 2026-03-24 01:26:46

○A115.28.159.1392015-06-04 → 2017-08-25 · 4 obs

● 2015-06-04 21:55:00
● 2017-08-25 17:57:24
○ 2026-02-20 10:03:42
○ 2026-03-24 01:26:46

○A154.90.233.122026-02-20 → 2026-03-24 · 2 obs

○ 2026-02-20 10:03:42
○ 2026-03-24 01:26:46

●A38.14.13.762026-02-20 → 2026-03-24 · 3 obs

○ 2017-08-25 17:57:24
● 2026-02-20 10:03:42
● 2026-03-24 01:26:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, a.dns.cn, e.dns.cn, c.dns.cn...	-
1stclass.cn	a9.share-dns.com, b9.share-dns.net	-

✅ Authoritative Response

Server:172.64.53.25

NS records: a9.share-dns.com, b9.share-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stclass.cn (unsigned zone)

⏱️ Timing

Total: 256ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.14.13.76`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

Analysis

IP Addresses

1stclass.cn resolves to a single IP address: 38.14.13.76.

Name Servers

1stclass.cn is delegated to four name servers: a9.share-dns.com, a.share-dns.com, b9.share-dns.net and b.share-dns.net.

1stclass.cn at least partially shares name servers with other domains, including blcdhw.com, e-detron.com, ko2zs.com, lshtjx.com and jpeed.com.