`51zn.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:87be^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:72e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.7.46^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.135.190^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alexia.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26af^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2af^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alexia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22af^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alexia.ns.cloudflare.com`
		A	108.162.194.175^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	162.159.38.175^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
		A	172.64.34.175^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexia.ns.cloudflare.com`
NS	`plato.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bdf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1df^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`plato.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21df^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`plato.ns.cloudflare.com`
		A	108.162.193.223^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	172.64.33.223^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
		A	173.245.59.223^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`plato.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.7.46, 172.67.135.190
		IPv6 hints	2606:4700:3030::ac43:87be, 2606:4700:3037::6815:72e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=25, name=cloudflare-ech.com
SOA	`alexia.ns.cloudflare.com`dns@cloudflare.com serial=2400840824

`net`

	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=1776035067

Subdomains

www.51zn.net

Same first word

51zn.net

51zn.com

51zn.cn

Similar names

z1n5.com

zn15.cn

nz15.cn

zn51.com

nz51.net

51nz.com.cn

zn15.com

DNS History

11 records (6 active, 5 former)

●NSalexia.ns.cloudflare.com2026-02-19 → 2026-04-12 · 3 obs

○ 2017-01-02 20:29:10
● 2026-02-19 23:15:20
● 2026-04-12 23:17:46

○NSdns10.hichina.com2015-10-30 → 2017-01-02 · 4 obs

● 2015-10-30 01:29:56
● 2017-01-02 20:29:10
○ 2026-02-19 23:15:20
○ 2026-04-12 23:17:46

○NSdns9.hichina.com2015-10-30 → 2017-01-02 · 4 obs

● 2015-10-30 01:29:56
● 2017-01-02 20:29:10
○ 2026-02-19 23:15:20
○ 2026-04-12 23:17:46

●NSplato.ns.cloudflare.com2026-02-19 → 2026-04-12 · 3 obs

○ 2017-01-02 20:29:10
● 2026-02-19 23:15:20
● 2026-04-12 23:17:46

●A104.21.7.462026-02-22 → 2026-04-12 · 3 obs

○ 2026-02-19 23:15:20
● 2026-02-22 08:25:24
● 2026-04-12 23:17:46

○A112.125.17.1032015-06-20 → 2015-06-20 · 3 obs

● 2015-06-20 12:39:54
○ 2015-10-30 01:29:56
○ 2026-04-12 23:17:46

○A172.64.80.12026-02-19 → 2026-02-19 · 4 obs

○ 2015-10-30 01:29:56
● 2026-02-19 23:15:20
○ 2026-02-22 08:25:24
○ 2026-04-12 23:17:46

●A172.67.135.1902026-02-22 → 2026-04-12 · 3 obs

○ 2026-02-19 23:15:20
● 2026-02-22 08:25:24
● 2026-04-12 23:17:46

○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-19 → 2026-02-22 · 5 obs

○ 2015-10-30 01:29:56
● 2026-02-19 23:15:20
● 2026-02-22 08:25:24
○ 2026-02-26 11:28:24
○ 2026-04-12 23:17:46

●A2606:4700:3030::ac43:87be2026-02-26 → 2026-04-12 · 4 obs

○ 2026-02-19 23:15:20
○ 2026-02-22 08:25:24
● 2026-02-26 11:28:24
● 2026-04-12 23:17:46

●A2606:4700:3037::6815:72e2026-02-26 → 2026-04-12 · 4 obs

○ 2026-02-19 23:15:20
○ 2026-02-22 08:25:24
● 2026-02-26 11:28:24
● 2026-04-12 23:17:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	l.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
51zn.net	plato.ns.cloudflare.com, alexia.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.175

NS records: plato.ns.cloudflare.com, alexia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51zn.net (unsigned zone)

⏱️ Timing

Total: 1146ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.7.46, 172.67.135.190`
AAAA	2	`2606:4700:3037::6815:72e, 2606:4700:3030::ac43:87be`
NS	2	`alexia.ns.cloudflare.com, plato.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alexia.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

The parent of www.51zn.net is 51zn.net.

IP Addresses

51zn.net maps to four IP numbers: 2606:4700:3030::ac43:87be, 2606:4700:3037::6815:72e, 104.21.7.46 and 172.67.135.190.

Other host names such as 2clics.net, bazapnz.ru, aixeta.cat, 250du.com and 7898dc-productions.aixeta.cat share IPs with 51zn.net.

Name Servers

Two name servers alexia.ns.cloudflare.com and plato.ns.cloudflare.com handle the delegation for 51zn.net.

51zn.net shares the same name server setup as other domains, for example qicaiding.com, gyhm.net, kkstar.net, fslingfeng.com and hwqz.net.

51zn.net at least partially shares name servers with other domains, for example impertrade.com.br, josephmahinda.com, avocado.md, gscrevenueky.gov and lordfilm.moda.

These name servers are often used together with diana.ns.cloudflare.com and garret.ns.cloudflare.com.

Host names with six IP numbers:

alexia.ns.cloudflare.com points to 2606:4700:50::a29f:26af, 2803:f800:50::6ca2:c2af, 2a06:98c1:50::ac40:22af, 108.162.194.175, 162.159.38.175 and 172.64.34.175.

plato.ns.cloudflare.com points to 2606:4700:58::adf5:3bdf, 2803:f800:50::6ca2:c1df, 2a06:98c1:50::ac40:21df, 108.162.193.223, 172.64.33.223 and 173.245.59.223.

51zn.net - robtex.com

51zn.net

net