`ip51.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:4adf^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a40b^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.74.223^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.11^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`keira.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ce^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ce^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keira.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ce^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keira.ns.cloudflare.com`
		A	108.162.194.206^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	162.159.38.206^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
		A	172.64.34.206^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keira.ns.cloudflare.com`
NS	`sergi.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c344^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sergi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2344^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sergi.ns.cloudflare.com`
		A	108.162.195.68^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	162.159.44.68^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
		A	172.64.35.68^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sergi.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.74.223, 172.67.164.11
		IPv6	2606:4700:3031::6815:4adf, 2606:4700:3037::ac43:a40b
SOA	`keira.ns.cloudflare.com`dns@cloudflare.com serial=2398736548

`cn`

	DNSSEC	🔒 Signed (DS record present)
	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=2034586808

Same first word

ip51.cn

Similar names

1ip5.com

51ip.cc

ip15.com

51ip.top

51ip.com

51pi.cn

p51i.xyz

15pi.com

ip15.net

51ip.app

51pi.com

pi15.com

DNS History

20 records (6 active, 14 former)

○NSf1g1ns1.dnspod.net2015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 16:39:08
○ 2015-10-26 20:59:32
○ 2026-03-25 21:36:46

●NSkeira.ns.cloudflare.com2026-03-23 → 2026-03-25 · 3 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
● 2026-03-25 21:36:46

○NSns1.360wzb.com2015-10-26 → 2016-04-12 · 5 obs

○ 2015-06-08 16:39:08
● 2015-10-26 20:59:32
● 2016-04-12 15:17:14
○ 2017-06-30 14:58:22
○ 2026-03-25 21:36:46

○NSns1.cloudcdns.com2017-06-30 → 2017-06-30 · 4 obs

○ 2016-04-12 15:17:14
● 2017-06-30 14:58:22
○ 2026-03-23 20:31:32
○ 2026-03-25 21:36:46

○NSns2.360wzb.com2015-10-26 → 2016-04-12 · 5 obs

○ 2015-06-08 16:39:08
● 2015-10-26 20:59:32
● 2016-04-12 15:17:14
○ 2017-06-30 14:58:22
○ 2026-03-25 21:36:46

○NSns2.cloudcdns.com2017-06-30 → 2017-06-30 · 4 obs

○ 2016-04-12 15:17:14
● 2017-06-30 14:58:22
○ 2026-03-23 20:31:32
○ 2026-03-25 21:36:46

●NSsergi.ns.cloudflare.com2026-03-23 → 2026-03-25 · 3 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
● 2026-03-25 21:36:46

●A104.21.74.2232026-03-23 → 2026-03-25 · 5 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
○ 2026-03-23 22:46:54
● 2026-03-25 18:55:54
● 2026-03-25 21:36:46

○A125.88.190.122015-10-26 → 2015-10-26 · 3 obs

● 2015-10-26 20:59:32
○ 2016-01-19 14:25:02
○ 2026-03-25 21:36:46

●A172.67.164.112026-03-23 → 2026-03-25 · 5 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
○ 2026-03-23 22:46:54
● 2026-03-25 18:55:54
● 2026-03-25 21:36:46

○A188.114.96.02026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 20:31:32
● 2026-03-23 22:46:54
○ 2026-03-25 18:55:54
○ 2026-03-25 21:36:46

○A188.114.97.02026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 20:31:32
● 2026-03-23 22:46:54
○ 2026-03-25 18:55:54
○ 2026-03-25 21:36:46

○A222.73.144.1612016-04-12 → 2016-04-12 · 4 obs

○ 2016-01-19 14:25:02
● 2016-04-12 15:17:14
○ 2017-06-30 14:58:22
○ 2026-03-25 21:36:46

○A222.73.144.1632016-01-19 → 2016-01-19 · 4 obs

○ 2015-10-26 20:59:32
● 2016-01-19 14:25:02
○ 2016-04-12 15:17:14
○ 2026-03-25 21:36:46

●A2606:4700:3031::6815:4adf2026-03-23 → 2026-03-25 · 5 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
○ 2026-03-23 22:46:54
● 2026-03-25 18:55:54
● 2026-03-25 21:36:46

●A2606:4700:3037::ac43:a40b2026-03-23 → 2026-03-25 · 5 obs

○ 2017-06-30 14:58:22
● 2026-03-23 20:31:32
○ 2026-03-23 22:46:54
● 2026-03-25 18:55:54
● 2026-03-25 21:36:46

○A2a06:98c1:3120::2026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 20:31:32
● 2026-03-23 22:46:54
○ 2026-03-25 18:55:54
○ 2026-03-25 21:36:46

○A2a06:98c1:3121::2026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-23 20:31:32
● 2026-03-23 22:46:54
○ 2026-03-25 18:55:54
○ 2026-03-25 21:36:46

○A38.134.121.292017-06-30 → 2017-06-30 · 4 obs

○ 2016-04-12 15:17:14
● 2017-06-30 14:58:22
○ 2026-03-23 20:31:32
○ 2026-03-25 21:36:46

○A38.134.121.372017-06-30 → 2017-06-30 · 4 obs

○ 2016-04-12 15:17:14
● 2017-06-30 14:58:22
○ 2026-03-23 20:31:32
○ 2026-03-25 21:36:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	b.dns.cn, c.dns.cn, e.dns.cn, a.dns.cn...	-
ip51.cn	keira.ns.cloudflare.com, sergi.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.206

NS records: keira.ns.cloudflare.com, sergi.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ip51.cn (unsigned zone)

⏱️ Timing

Total: 422ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.74.223, 172.67.164.11`
AAAA	2	`2606:4700:3031::6815:4adf, 2606:4700:3037::ac43:a40b`
NS	2	`keira.ns.cloudflare.com, sergi.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`keira.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

ip51.cn maps to four IP numbers: 2606:4700:3031::6815:4adf, 2606:4700:3037::ac43:a40b, 104.21.74.223 and 172.67.164.11.

Other host names, for instance plutonis.com, mail.alislam.org, breakdown.uk, socolive.email and radiantyard.com share IP numbers with ip51.cn.

Name Servers

Two name servers keira.ns.cloudflare.com and sergi.ns.cloudflare.com handle delegation for ip51.cn.

ip51.cn uses the same name server setup as other domains, for example casino-harry.co.uk, xiyue1.com, v-wape.ru, dm010.com and tslvfeng.com.

ip51.cn partially shares name servers with other domains; examples include pafipctempe.org, orionasp.net, michaelandrachel.info, kj569.com and hp-kyoto.info.

These name servers are commonly used with carmelo.ns.cloudflare.com, paityn.ns.cloudflare.com and david.ns.cloudflare.com.

Host names with six IP numbers: keira.ns.cloudflare.com points to: 2606:4700:50::a29f:26ce, 2803:f800:50::6ca2:c2ce, 2a06:98c1:50::ac40:22ce, 108.162.194.206, 162.159.38.206 and 172.64.34.206; sergi.ns.cloudflare.com points to: 2606:4700:58::a29f:2c44, 2803:f800:50::6ca2:c344, 2a06:98c1:50::ac40:2344, 108.162.195.68, 162.159.44.68 and 172.64.35.68.

ip51.cn - robtex.com

ip51.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`ip51.cn`

`cn`