🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`dukou.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bcd8^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:8f7^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.247^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.216^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`holly.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2685^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`holly.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c285^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`holly.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2285^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`holly.ns.cloudflare.com`
		A	108.162.194.133^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`holly.ns.cloudflare.com`
		A	162.159.38.133^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`holly.ns.cloudflare.com`
		A	172.64.34.133^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`holly.ns.cloudflare.com`
NS	`patryk.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c7a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`patryk.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c37a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`patryk.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:237a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`patryk.ns.cloudflare.com`
		A	108.162.195.122^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`patryk.ns.cloudflare.com`
		A	162.159.44.122^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`patryk.ns.cloudflare.com`
		A	172.64.35.122^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`patryk.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.247, 172.67.188.216
		IPv6 hints	2606:4700:3030::ac43:bcd8, 2606:4700:3035::6815:8f7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=246, name=cloudflare-ech.com
SOA	`holly.ns.cloudflare.com`dns@cloudflare.com serial=2412239526

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Subdomains

www.dukou.dev

Same first word

dukou.dev

dukou.to

Similar names

kuudo.net

kudou.org

kudou.tv

ukudo.com

okudu.de

udoku.com

okudu.com

okudu.co.uk

koduu.com

douku.tv

kudou.net

douku.net

kuudo.co

kudou.cn

duoku.com

dukuo.cn

okudu.ai

koudu.net

kudou.pro

udoku.info

udoku.net

kuodu.com.cn

kudou.name

kudou.jp

douku.xyz

oduku.com

duuko.com

kuduo.com

kudou.co.jp

kudou.com

kudou.com.cn

udoku.de

kuodu.net

kudou.biz

duoku.com.cn

DNS History

14 records (6 active, 8 former)

●NSholly.ns.cloudflare.com2026-02-18 → 2026-08-16 · 2 obs

● 2026-02-18 08:50:02
● 2026-08-16 03:33:42

●NSpatryk.ns.cloudflare.com2026-02-18 → 2026-08-16 · 2 obs

● 2026-02-18 08:50:02
● 2026-08-16 03:33:42

●A104.21.8.2472026-02-18 → 2026-08-16 · 5 obs

● 2026-02-18 08:50:02
○ 2026-02-18 16:01:26
○ 2026-02-24 17:01:06
● 2026-03-03 08:33:32
● 2026-08-16 03:33:42

●A172.67.188.2162026-02-18 → 2026-08-16 · 5 obs

● 2026-02-18 08:50:02
○ 2026-02-18 16:01:26
○ 2026-02-24 17:01:06
● 2026-03-03 08:33:32
● 2026-08-16 03:33:42

○A188.114.96.02026-02-18 → 2026-02-24 · 5 obs

○ 2026-02-18 08:50:02
● 2026-02-18 16:01:26
● 2026-02-24 17:01:06
○ 2026-03-03 08:33:32
○ 2026-08-16 03:33:42

○A188.114.97.02026-02-18 → 2026-02-24 · 5 obs

○ 2026-02-18 08:50:02
● 2026-02-18 16:01:26
● 2026-02-24 17:01:06
○ 2026-03-03 08:33:32
○ 2026-08-16 03:33:42

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-03 → 2026-03-03 · 4 obs

○ 2026-02-24 17:01:06
● 2026-03-03 08:33:32
○ 2026-04-01 11:17:38
○ 2026-08-16 03:33:42

●A2606:4700:3030::ac43:bcd82026-02-18 → 2026-08-16 · 5 obs

● 2026-02-18 08:50:02
○ 2026-02-18 16:01:26
○ 2026-03-03 08:33:32
● 2026-04-01 11:17:38
● 2026-08-16 03:33:42

○A2606:4700:3032::6815:8f72026-02-18 → 2026-06-09 · 7 obs

● 2026-02-18 08:50:02
○ 2026-02-18 16:01:26
○ 2026-03-03 08:33:32
● 2026-04-01 11:17:38
● 2026-06-09 21:04:52
○ 2026-07-01 00:01:20
○ 2026-08-16 03:33:42

●A2606:4700:3035::6815:8f72026-07-01 → 2026-08-16 · 3 obs

○ 2026-06-09 21:04:52
● 2026-07-01 00:01:20
● 2026-08-16 03:33:42

○A2a06:98c1:3120::2026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-18 16:01:26
● 2026-02-24 17:01:06
○ 2026-03-03 08:33:32
○ 2026-08-16 03:33:42

○A2a06:98c1:3120::42026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-18 08:50:02
● 2026-02-18 16:01:26
○ 2026-02-24 17:01:06
○ 2026-08-16 03:33:42

○A2a06:98c1:3121::2026-02-24 → 2026-02-24 · 4 obs

○ 2026-02-18 16:01:26
● 2026-02-24 17:01:06
○ 2026-03-03 08:33:32
○ 2026-08-16 03:33:42

○A2a06:98c1:3121::42026-02-18 → 2026-02-18 · 4 obs

○ 2026-02-18 08:50:02
● 2026-02-18 16:01:26
○ 2026-02-24 17:01:06
○ 2026-08-16 03:33:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
dukou.dev	holly.ns.cloudflare.com, patryk.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.122

NS records: holly.ns.cloudflare.com, patryk.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dukou.dev (unsigned zone)

⏱️ Timing

Total: 300ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.8.247, 172.67.188.216`
AAAA	2	`2606:4700:3035::6815:8f7, 2606:4700:3030::ac43:bcd8`
NS	2	`holly.ns.cloudflare.com, patryk.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`holly.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

www.dukou.dev is a subdomain of dukou.dev.

IP Addresses

dukou.dev directs to four IP numbers, which are 104.21.8.247, 172.67.188.216, 2606:4700:3030::ac43:bcd8 and 2606:4700:3035::6815:8f7.

Additional host names — www.nathanbaudoin.com, igneada.net, bareknucklepickups.com and two others — share IP numbers with dukou.dev.

Name Servers

Two name servers handle the delegation for dukou.dev: holly.ns.cloudflare.com and patryk.ns.cloudflare.com.

dukou.dev shares its name server setup with other domains, including kirsehirpasta.com.tr, wedprohq.co.uk, flgwls.com and two others.

The name servers of dukou.dev overlap at least partially with those of other domains — among them the-fan.net, sh-su.com, bestsmsmarketingsolutions.com and two more.

These name servers commonly appear alongside the name servers gannon.ns.cloudflare.com and meilani.ns.cloudflare.com.

Host names with 6 IP numbers:

holly.ns.cloudflare.com resolves to 108.162.194.133, 162.159.38.133 and 172.64.34.133 among others, with 3 other IP addresses in total.

patryk.ns.cloudflare.com resolves to 108.162.195.122, 162.159.44.122 and 172.64.35.122 among others, with 3 other IP addresses in total.

dukou.dev - robtex.com

dukou.dev

dev