du.dev - dns.ninja

`du.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:ce9b^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:255a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.37.90^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.206.155^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arushi.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:263d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arushi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c23d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arushi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:223d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arushi.ns.cloudflare.com`
		A	108.162.194.61^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arushi.ns.cloudflare.com`
		A	162.159.38.61^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arushi.ns.cloudflare.com`
		A	172.64.34.61^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arushi.ns.cloudflare.com`
NS	`vick.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vick.ns.cloudflare.com`
		A	108.162.193.244^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	172.64.33.244^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
		A	173.245.59.244^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vick.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽³⁵⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽¹⁰⁰⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`apple-domain=3wXgGtk9aKsyaAXs`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.37.90, 172.67.206.155
		IPv6 hints	2606:4700:3036::ac43:ce9b, 2606:4700:3037::6815:255a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=1, name=cloudflare-ech.com
SOA	`arushi.ns.cloudflare.com`dns@cloudflare.com serial=2405802512

`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)

Same first word

du.ie

du.gov.mn

du.nu

du.de

du.dk

du.edu.et

du.fi

du.tr

du.ru

du.com.mx

du.ac.in

du.edu.eg

du.be

du.my

du.cz

du.tn

du.pl

du.edu.tr

du.ac.kr

du.by

du.edu.vn

du.ma

du.st

du.cx

du.soccer

du.org

du.pe

du.kg

du.am

du.lv

du.no

du.email

du.net

du.works

du.ppg.br

du.chat

du.co

du.cn

du.coach

du.ag

du.idv.tw

du.ac

du.se

du.pa

du.hu

du.ro

du.com.ar

du.ee

du.country

du.edu.pk

du.today

du.sk

du.com

du.ae

du.biz

du.io

du.ac.ir

du.kz

du.ph

du.edu.om

du.s3.amazonaws.com

du.wtf

du.edu

du.fitness

du.do

du.com.pe

du.world

du.is

du.ms

du.rs

du.co.nz

du.cc

du.to

du.dev

du.family

du.si

du.eu

du.lt

du.su

Similar names

ud.ae

ud.world

ud.wtf

ud.org.cn

ud.eu

ud.cl

ud.com.au

ud.com.ua

ud.cz

ud.ac.th

ud.in.ua

ud.ltd

ud.me

ud.com.sa

ud.pl

ud.io

ud.tv

ud.ie

ud.wine

ud.net

ud.cc

ud.fi

ud.ro

ud.cn

ud.co.th

ud.ac.ae

ud.no

ud.my

ud.hk

ud.co.nz

ud.dep.no

ud.ag

ud.chat

ud.ua

ud.cm

ud.edu.vn

ud.net.cn

ud.nl

ud.sh

ud.be

ud.co

DNS History

13 records (9 active, 4 former)

●NSarushi.ns.cloudflare.com2026-02-16 → 2026-06-14 · 2 obs

● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

●NSvick.ns.cloudflare.com2026-02-16 → 2026-06-14 · 2 obs

● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

○MXmx01.mail.icloud.com2026-02-16 → 2026-05-26 · 5 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-05-26 22:50:24
○ 2026-06-04 19:10:44
○ 2026-06-14 16:01:56

○MXmx02.mail.icloud.com2026-02-16 → 2026-05-26 · 5 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-05-26 22:50:24
○ 2026-06-04 19:10:44
○ 2026-06-14 16:01:56

●MXroute1.mx.cloudflare.net2026-06-04 → 2026-06-14 · 3 obs

○ 2026-05-26 22:50:24
● 2026-06-04 19:10:44
● 2026-06-14 16:01:56

●MXroute2.mx.cloudflare.net2026-06-04 → 2026-06-14 · 3 obs

○ 2026-05-26 22:50:24
● 2026-06-04 19:10:44
● 2026-06-14 16:01:56

●MXroute3.mx.cloudflare.net2026-06-04 → 2026-06-14 · 3 obs

○ 2026-05-26 22:50:24
● 2026-06-04 19:10:44
● 2026-06-14 16:01:56

○MXyour-dns-needs-immediate-attention.dev2017-04-02 → 2017-07-26 · 4 obs

● 2017-04-02 11:48:32
● 2017-07-26 08:50:42
○ 2026-02-16 02:31:38
○ 2026-06-14 16:01:56

●A104.21.37.902026-02-16 → 2026-06-14 · 3 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

○A127.0.53.532017-04-02 → 2017-07-26 · 4 obs

● 2017-04-02 11:48:32
● 2017-07-26 08:50:42
○ 2026-02-16 02:31:38
○ 2026-06-14 16:01:56

●A172.67.206.1552026-02-16 → 2026-06-14 · 3 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

●A2606:4700:3036::ac43:ce9b2026-02-16 → 2026-06-14 · 3 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

●A2606:4700:3037::6815:255a2026-02-16 → 2026-06-14 · 3 obs

○ 2017-07-26 08:50:42
● 2026-02-16 02:31:38
● 2026-06-14 16:01:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
du.dev	vick.ns.cloudflare.com, arushi.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.61

NS records: vick.ns.cloudflare.com, arushi.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for du.dev (unsigned zone)

⏱️ Timing

Total: 614ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.37.90, 172.67.206.155`
AAAA	2	`2606:4700:3036::ac43:ce9b, 2606:4700:3037::6815:255a`
NS	2	`arushi.ns.cloudflare.com, vick.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 100), route3.mx.cloudflare.net (pri: 27)...`
TXT	2	`apple-domain=3wXgGtk9aKsyaAXs, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arushi.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

du.dev points to the four IP addresses 104.21.37.90, 172.67.206.155, 2606:4700:3036::ac43:ce9b and 2606:4700:3037::6815:255a.

Two other host names, along with shopkitchendecor.com, playnode.net and lemesee.com, also share IP numbers with du.dev.

Name Servers

du.dev is served by two delegated name servers, arushi.ns.cloudflare.com and vick.ns.cloudflare.com.

du.dev shares its NS records with other domains, for example regio-cloud.net, peachgarden.rest, masta.vn and two others.

At least some of du.dev's name servers are shared with other domains, for example ag0426.com, mistersend.it, flowonsystems.ca and two more.

These name servers are often deployed together with the name servers leo.ns.cloudflare.com, eoin.ns.cloudflare.com, etta.ns.cloudflare.com and harmony.ns.cloudflare.com.

DNS names with 6 IP addresses:

arushi.ns.cloudflare.com carries IP addresses 108.162.194.61, 162.159.38.61 and 172.64.34.61, with 3 other addresses beyond those.

vick.ns.cloudflare.com carries IP addresses 108.162.193.244, 172.64.33.244 and 173.245.59.244, with 3 other addresses beyond those.

Mail Servers

The MX records for du.dev list three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

There is at least a partial MX overlap between du.dev and other domains, including doozie.io, spinbet.asia, bienaca.com and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net carries IP addresses 162.159.205.11, 162.159.205.12 and 162.159.205.13, with 3 other addresses beyond those.

route2.mx.cloudflare.net carries IP addresses 162.159.205.17, 162.159.205.18 and 162.159.205.19, with 3 other addresses beyond those.

route3.mx.cloudflare.net carries IP addresses 162.159.205.23, 162.159.205.24 and 162.159.205.25, with 3 other addresses beyond those.