`cuiduo.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:a7d^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:be26^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.10.125^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.38^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ali.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a3b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c03b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ali.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:203b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ali.ns.cloudflare.com`
		A	108.162.192.59^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	172.64.32.59^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
		A	173.245.58.59^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ali.ns.cloudflare.com`
NS	`dan.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b6c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dan.ns.cloudflare.com`
		A	108.162.193.108^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	172.64.33.108^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	173.245.59.108^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.10.125, 172.67.190.38
		IPv6 hints	2606:4700:3032::6815:a7d, 2606:4700:3035::ac43:be26
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com
SOA	`ali.ns.cloudflare.com`dns@cloudflare.com serial=2401661022

`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=2034703909

Same first word

cuiduo.cn

Similar names

doucui.com

duicuo.cn

coudui.com

DNS History

26 records (6 active, 20 former)

●NSali.ns.cloudflare.com2026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

●NSdan.ns.cloudflare.com2026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

○NSns1.nowcndns.com2026-03-25 → 2026-04-11 · 4 obs

● 2026-03-25 10:59:56
● 2026-04-11 23:21:50
○ 2026-04-15 16:19:20
○ 2026-04-23 16:52:32

○NSns2.nowcndns.com2026-03-25 → 2026-04-11 · 4 obs

● 2026-03-25 10:59:56
● 2026-04-11 23:21:50
○ 2026-04-15 16:19:20
○ 2026-04-23 16:52:32

●A104.21.10.1252026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

○A154.80.161.582026-03-25 → 2026-04-07 · 5 obs

○ 2020-01-26 19:41:42
● 2026-03-25 10:59:56
● 2026-04-07 04:02:10
○ 2026-04-08 18:14:48
○ 2026-04-23 16:52:32

○A154.85.210.582026-04-08 → 2026-04-11 · 5 obs

○ 2026-04-07 04:02:10
● 2026-04-08 18:14:48
● 2026-04-11 23:21:50
○ 2026-04-15 16:19:20
○ 2026-04-23 16:52:32

○A162.251.5.1872016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

●A172.67.190.382026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

○A23.234.27.2092020-01-26 → 2020-01-26 · 4 obs

○ 2017-02-18 04:38:40
● 2020-01-26 19:41:42
○ 2026-03-25 10:59:56
○ 2026-04-23 16:52:32

●A2606:4700:3032::6815:a7d2026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

●A2606:4700:3035::ac43:be262026-04-15 → 2026-04-23 · 3 obs

○ 2026-04-11 23:21:50
● 2026-04-15 16:19:20
● 2026-04-23 16:52:32

○A45.116.62.522016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.532016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.542016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.552016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.562016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.572016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.582016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.592016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A45.116.62.602016-06-26 → 2016-06-26 · 4 obs

○ 2015-12-05 23:36:34
● 2016-06-26 01:30:04
○ 2017-02-18 04:38:40
○ 2026-04-23 16:52:32

○A64.62.224.2532015-08-20 → 2015-12-05 · 4 obs

● 2015-08-20 10:17:08
● 2015-12-05 23:36:34
○ 2016-06-26 01:30:04
○ 2026-04-23 16:52:32

○A67.229.134.1792017-02-18 → 2017-02-18 · 4 obs

○ 2016-06-26 01:30:04
● 2017-02-18 04:38:40
○ 2020-01-26 19:41:42
○ 2026-04-23 16:52:32

○A67.229.33.512017-02-18 → 2017-02-18 · 4 obs

○ 2016-06-26 01:30:04
● 2017-02-18 04:38:40
○ 2020-01-26 19:41:42
○ 2026-04-23 16:52:32

○A67.229.34.1792017-02-18 → 2017-02-18 · 4 obs

○ 2016-06-26 01:30:04
● 2017-02-18 04:38:40
○ 2020-01-26 19:41:42
○ 2026-04-23 16:52:32

○CNAME1075.dragonparking.com2017-02-18 → 2017-02-18 · 3 obs

● 2017-02-18 04:38:40
○ 2020-01-26 19:41:42
○ 2026-04-23 16:52:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
cuiduo.cn	ali.ns.cloudflare.com, dan.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.59

NS records: ali.ns.cloudflare.com, dan.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cuiduo.cn: Error: DNS query timeout: 203.119.29.1 for DS cuiduo.cn

⏱️ Timing

Total: 3651ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.10.125, 172.67.190.38`
AAAA	2	`2606:4700:3032::6815:a7d, 2606:4700:3035::ac43:be26`
NS	2	`ali.ns.cloudflare.com, dan.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ali.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

cuiduo.cn resolves to four IPs: 2606:4700:3032::6815:a7d, 2606:4700:3035::ac43:be26, 104.21.10.125 and 172.67.190.38.

Other host names, for instance wyjsciezgrupa.pl, 100days.runaddicts.in, bandkplastics.com.au, gotrenches.xyz and koreanonlinecasinos.com share IP numbers with cuiduo.cn.

Name Servers

cuiduo.cn has two name servers: ali.ns.cloudflare.com and dan.ns.cloudflare.com.

cuiduo.cn shares the same name server setup as other domains, for example itfos.net, usasmith.com, stopmetroken.org, tianbohemei.com and ytttb.com.

cuiduo.cn shares some name servers with other domains, for example wuwenke.cn, sathingpra.go.th, associateonelogin.com, edtech.ee and soxao.pages.dev.

These name servers are commonly used together with woz.ns.cloudflare.com and earl.ns.cloudflare.com.

Host names with six IP numbers: ali.ns.cloudflare.com points to: 2606:4700:50::adf5:3a3b, 2803:f800:50::6ca2:c03b, 2a06:98c1:50::ac40:203b, 108.162.192.59, 172.64.32.59 and 173.245.58.59; dan.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6c, 2803:f800:50::6ca2:c16c, 2a06:98c1:50::ac40:216c, 108.162.193.108, 172.64.33.108 and 173.245.59.108.

cuiduo.cn - robtex.com

cuiduo.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`cuiduo.cn`

`cn`