duuko.com - dns.ninja

`duuko.com`

DNSSEC	⚠️ Not signed
A	44.230.85.241^{🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix}
		PTR	`ec2-44-230-85-241.us-west-2.compute.amazonaws.com`
A	52.33.207.7^{🇺🇸 Amazon52.32.0.0/14 EC2 PDX prefix}
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx1.mxfilter.net` ⭐
		A	23.147.8.11^{🇺🇸 AS4682423.147.8.0/24 Announcement}
			PTR	`mx1.mxfilter.net`
MX	`mx2.mxfilter.net` ⭐
		A	162.244.95.10^{🇺🇸 AS965162.244.95.0/24 Namecrane}
			PTR	`mx2.mxfilter.net`
MX	`mx3.mxfilter.net`⁽²⁰⁾
		A	23.147.8.11^{🇺🇸 AS4682423.147.8.0/24 Announcement}
			PTR	`mx1.mxfilter.net`
MX	`mx4.mxfilter.net`⁽²⁰⁾
		A	162.244.95.10^{🇺🇸 AS965162.244.95.0/24 Namecrane}
			PTR	`mx2.mxfilter.net`
TXT	`startmail-verification=a490112609cdee0f08d8c5624aaa75e7`
TXT	`v=spf1 include:_spf.workspace.org -all`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2407369561

`com`

	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=1782874246

Same first word

duuko.com

Similar names

kudou.net

douku.net

kuudo.co

kudou.cn

duoku.com

dukuo.cn

koudu.net

udoku.info

dukou.dev

udoku.net

kuudo.de

kuodu.com.cn

kudou.name

kudou.jp

oduku.com

kuduo.com

kudou.co.jp

kudou.com

kudou.com.cn

udoku.de

kuodu.net

kudou.biz

duoku.com.cn

dukou.icu

kuudo.net

kudou.org

kudou.tv

ukudo.com

okudu.de

udoku.com

okudu.com

okudu.co.uk

koduu.com

douku.tv

DNS History

14 records (10 active, 4 former)

●NScuritiba.ns.porkbun.com2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●NSfortaleza.ns.porkbun.com2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●NSmaceio.ns.porkbun.com2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

○NSns1.sedoparking.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 14:47:02
○ 2026-02-24 00:07:32
○ 2026-07-01 03:04:40

○NSns2.sedoparking.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 14:47:02
○ 2026-02-24 00:07:32
○ 2026-07-01 03:04:40

●NSsalvador.ns.porkbun.com2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

○MXlocalhost2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 14:47:02
○ 2026-02-24 00:07:32
○ 2026-07-01 03:04:40

●MXmx1.mxfilter.net2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●MXmx2.mxfilter.net2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●MXmx3.mxfilter.net2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●MXmx4.mxfilter.net2026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●A44.230.85.2412026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

●A52.33.207.72026-02-24 → 2026-07-01 · 3 obs

○ 2016-12-18 14:47:02
● 2026-02-24 00:07:32
● 2026-07-01 03:04:40

○A72.52.4.1192016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 14:47:02
○ 2026-02-24 00:07:32
○ 2026-07-01 03:04:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net...	-
duuko.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:162.159.11.180

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duuko.com (unsigned zone)

⏱️ Timing

Total: 782ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`44.230.85.241, 52.33.207.7`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	4	`mx1.mxfilter.net (pri: 10), mx2.mxfilter.net (pri: 10)...`
TXT	2	`startmail-verification=a490112609cdee0f0, v=spf1 include:_spf.workspace.org -all`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

IP Addresses

duuko.com directs to two IP numbers, 44.230.85.241 and 52.33.207.7

(0x786e7878)-portal.com, tekzone.ca, abezy.com plus two other host names have IP numbers in common with duuko.com.

Name Servers

Four name servers handle the delegation for duuko.com: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

duuko.com has at least partial name server overlap with other domains, such as conversion-spartan.co, jazzmoth.com, aldrich112.space and two others.

curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com all point to exactly two IP numbers each: curitiba.ns.porkbun.com → 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com → 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com → 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com → 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

Four mail servers handle email for duuko.com: mx1.mxfilter.net, mx2.mxfilter.net, mx3.mxfilter.net and mx4.mxfilter.net.

At least some of the mail servers used by duuko.com are shared with other domains: qiui.org, zubairfazal.com, joao.ca and two others among them.

Four host names, each with a single IP address: mx1.mxfilter.net → 23.147.8.11, mx2.mxfilter.net → 162.244.95.10, mx3.mxfilter.net → 23.147.8.11 and mx4.mxfilter.net → 162.244.95.10.

These two host names — mx1.mxfilter.net and mx3.mxfilter.net — each point to 23.147.8.11 IP addresses.

These two host names — mx2.mxfilter.net and mx4.mxfilter.net — each point to 162.244.95.10 IP addresses.