`21-part.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:52b0^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:a12e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.82.176^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.46^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kipp.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cf0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kipp.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3f0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kipp.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23f0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kipp.ns.cloudflare.com`
		A	108.162.195.240^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kipp.ns.cloudflare.com`
		A	162.159.44.240^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kipp.ns.cloudflare.com`
		A	172.64.35.240^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kipp.ns.cloudflare.com`
NS	`sydney.ns.cloudflare.com`
		A	2606:4700:50::a29f:2666^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c266^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sydney.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2266^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sydney.ns.cloudflare.com`
		A	108.162.194.102^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	162.159.38.102^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
		A	172.64.34.102^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sydney.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.82.176, 172.67.161.46
		IPv6 hints	2606:4700:3031::6815:52b0, 2606:4700:3034::ac43:a12e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com
SOA	`kipp.ns.cloudflare.com`dns@cloudflare.com serial=2408534327

`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=2035128134

Same first word

21-part.cn

Similar names

part-21.ch

DNS History

19 records (6 active, 13 former)

○NSdns1.hichina.com2015-05-25 → 2017-05-20 · 4 obs

● 2015-05-25 14:04:32
● 2017-05-20 20:50:50
○ 2026-05-23 04:20:40
○ 2026-08-03 12:16:22

○NSdns2.hichina.com2015-05-25 → 2017-05-20 · 4 obs

● 2015-05-25 14:04:32
● 2017-05-20 20:50:50
○ 2026-05-23 04:20:40
○ 2026-08-03 12:16:22

●NSkipp.ns.cloudflare.com2026-05-23 → 2026-08-03 · 3 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-08-03 12:16:22

●NSsydney.ns.cloudflare.com2026-05-23 → 2026-08-03 · 3 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-08-03 12:16:22

●A104.21.82.1762026-05-23 → 2026-08-03 · 8 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-06-16 16:55:44
○ 2026-06-18 05:00:32
● 2026-07-02 08:23:42
○ 2026-07-02 21:27:00
● 2026-08-03 12:16:20
● 2026-08-03 12:16:22

○A123.129.249.1632015-05-25 → 2015-12-20 · 4 obs

● 2015-05-25 14:04:32
● 2015-12-20 21:35:12
○ 2016-03-30 05:35:42
○ 2026-08-03 12:16:22

○A123.129.249.1882016-03-30 → 2017-05-20 · 5 obs

○ 2015-12-20 21:35:12
● 2016-03-30 05:35:42
● 2017-05-20 20:50:50
○ 2026-05-23 04:20:40
○ 2026-08-03 12:16:22

●A172.67.161.462026-05-23 → 2026-08-03 · 8 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-06-16 16:55:44
○ 2026-06-18 05:00:32
● 2026-07-02 08:23:42
○ 2026-07-02 21:27:00
● 2026-08-03 12:16:20
● 2026-08-03 12:16:22

○A188.114.96.02026-06-18 → 2026-07-02 · 6 obs

○ 2026-06-16 16:55:44
● 2026-06-18 05:00:32
○ 2026-06-19 00:36:32
● 2026-07-02 22:51:04
○ 2026-08-02 09:53:10
○ 2026-08-03 12:16:22

○A188.114.96.42026-06-19 → 2026-07-02 · 6 obs

○ 2026-06-18 05:00:32
● 2026-06-19 00:36:32
○ 2026-07-02 08:23:42
● 2026-07-02 21:27:00
○ 2026-07-02 22:51:04
○ 2026-08-03 12:16:22

○A188.114.97.02026-06-18 → 2026-07-02 · 6 obs

○ 2026-06-16 16:55:44
● 2026-06-18 05:00:32
○ 2026-06-19 00:36:32
● 2026-07-02 22:51:04
○ 2026-08-02 09:53:10
○ 2026-08-03 12:16:22

○A188.114.97.42026-06-19 → 2026-07-02 · 6 obs

○ 2026-06-18 05:00:32
● 2026-06-19 00:36:32
○ 2026-07-02 08:23:42
● 2026-07-02 21:27:00
○ 2026-07-02 22:51:04
○ 2026-08-03 12:16:22

●A2606:4700:3031::6815:52b02026-05-23 → 2026-08-03 · 8 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-06-16 16:55:44
○ 2026-06-18 05:00:32
● 2026-07-02 08:23:42
○ 2026-07-02 21:27:00
● 2026-08-03 12:16:20
● 2026-08-03 12:16:22

○A2606:4700:3032::ac43:a12e2026-05-23 → 2026-06-16 · 5 obs

○ 2017-05-20 20:50:50
● 2026-05-23 04:20:40
● 2026-06-16 16:55:44
○ 2026-06-18 05:00:32
○ 2026-08-03 12:16:22

●A2606:4700:3034::ac43:a12e2026-07-02 → 2026-08-03 · 5 obs

○ 2026-06-19 00:36:32
● 2026-07-02 08:23:42
○ 2026-07-02 21:27:00
● 2026-08-03 12:16:20
● 2026-08-03 12:16:22

○A2a06:98c1:3120::2026-06-18 → 2026-07-02 · 6 obs

○ 2026-06-16 16:55:44
● 2026-06-18 05:00:32
○ 2026-07-02 08:23:42
● 2026-07-02 22:51:04
○ 2026-08-02 09:53:10
○ 2026-08-03 12:16:22

○A2a06:98c1:3120::42026-07-02 → 2026-07-02 · 4 obs

○ 2026-07-02 08:23:42
● 2026-07-02 21:27:00
○ 2026-07-02 22:51:04
○ 2026-08-03 12:16:22

○A2a06:98c1:3121::2026-06-18 → 2026-07-02 · 6 obs

○ 2026-06-16 16:55:44
● 2026-06-18 05:00:32
○ 2026-07-02 08:23:42
● 2026-07-02 22:51:04
○ 2026-08-02 09:53:10
○ 2026-08-03 12:16:22

○A2a06:98c1:3121::42026-07-02 → 2026-07-02 · 4 obs

○ 2026-07-02 08:23:42
● 2026-07-02 21:27:00
○ 2026-07-02 22:51:04
○ 2026-08-03 12:16:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
21-part.cn	kipp.ns.cloudflare.com, sydney.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.102

NS records: kipp.ns.cloudflare.com, sydney.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at 21-part.cn: Error: DNS query timeout: 203.119.25.1 for DS 21-part.cn

⏱️ Timing

Total: 3580ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.82.176, 172.67.161.46`
AAAA	2	`2606:4700:3031::6815:52b0, 2606:4700:3034::ac43:a12e`
NS	2	`kipp.ns.cloudflare.com, sydney.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kipp.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

21-part.cn points to the four IP addresses 104.21.82.176, 172.67.161.46, 2606:4700:3031::6815:52b0 and 2606:4700:3034::ac43:a12e.

Additional host names — y4h2.com, wj2z.com, www.mlabeca.com and two others — share IP numbers with 21-part.cn.

Name Servers

21-part.cn uses two name servers for its delegation: kipp.ns.cloudflare.com and sydney.ns.cloudflare.com.

21-part.cn shares its name server setup with other domains, including zhixunguanggao.cn, sssytl.com, sdjg.net and two others.

The name servers of 21-part.cn overlap at least partially with those of other domains — among them gopfuture.com, a-silent-voice.online, cosmoresources.co.uk and two more.

The name servers cesar.ns.cloudflare.com, elsa.ns.cloudflare.com and valentin.ns.cloudflare.com are commonly seen alongside these name servers.

Host names with 6 IP numbers:

Hostname kipp.ns.cloudflare.com directs to 108.162.195.240, 162.159.44.240 and 172.64.35.240 along with 3 other IP addresses.

Hostname sydney.ns.cloudflare.com directs to 108.162.194.102, 162.159.38.102 and 172.64.34.102 along with 3 other IP addresses.

21-part.cn - robtex.com

21-part.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`21-part.cn`

`cn`