🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`notdefined.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:49ca^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:a5d1^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.202^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.165.209^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`emma.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c070^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`emma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2070^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`emma.ns.cloudflare.com`
		A	108.162.192.112^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	172.64.32.112^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	173.245.58.112^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
NS	`noah.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c185^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`noah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2185^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`noah.ns.cloudflare.com`
		A	108.162.193.133^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	172.64.33.133^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	173.245.59.133^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.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`⁽⁹¹⁾
		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`⁽⁹³⁾
		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	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.73.202, 172.67.165.209
		IPv6 hints	2606:4700:3033::6815:49ca, 2606:4700:3034::ac43:a5d1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com
SOA	`emma.ns.cloudflare.com`dns@cloudflare.com serial=2411048502

`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

notdefined.co

notdefined.tech

notdefined.dev

notdefined.net

notdefined.org

Similar names

definednot.com

Previous names

Next names

DNS History

13 records (9 active, 4 former)

●NSemma.ns.cloudflare.com2026-08-29 → 2026-09-03 · 2 obs

● 2026-08-29 03:22:28
● 2026-09-03 21:34:02

●NSnoah.ns.cloudflare.com2026-08-29 → 2026-09-03 · 2 obs

● 2026-08-29 03:22:28
● 2026-09-03 21:34:02

●MXroute1.mx.cloudflare.net2026-08-29 → 2026-09-03 · 2 obs

● 2026-08-29 03:22:28
● 2026-09-03 21:34:02

●MXroute2.mx.cloudflare.net2026-08-29 → 2026-09-03 · 2 obs

● 2026-08-29 03:22:28
● 2026-09-03 21:34:02

●MXroute3.mx.cloudflare.net2026-08-29 → 2026-09-03 · 2 obs

● 2026-08-29 03:22:28
● 2026-09-03 21:34:02

●A104.21.73.2022026-09-03 → 2026-09-03 · 3 obs

○ 2026-08-29 03:22:28
● 2026-09-03 17:01:34
● 2026-09-03 21:34:02

●A172.67.165.2092026-09-03 → 2026-09-03 · 3 obs

○ 2026-08-29 03:22:28
● 2026-09-03 17:01:34
● 2026-09-03 21:34:02

○A188.114.96.02026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:22:28
○ 2026-09-03 17:01:34
○ 2026-09-03 21:34:02

○A188.114.97.02026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:22:28
○ 2026-09-03 17:01:34
○ 2026-09-03 21:34:02

●A2606:4700:3033::6815:49ca2026-09-03 → 2026-09-03 · 3 obs

○ 2026-08-29 03:22:28
● 2026-09-03 17:01:34
● 2026-09-03 21:34:02

●A2606:4700:3034::ac43:a5d12026-09-03 → 2026-09-03 · 3 obs

○ 2026-08-29 03:22:28
● 2026-09-03 17:01:34
● 2026-09-03 21:34:02

○A2a06:98c1:3120::2026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:22:28
○ 2026-09-03 17:01:34
○ 2026-09-03 21:34:02

○A2a06:98c1:3121::2026-08-29 → 2026-08-29 · 3 obs

● 2026-08-29 03:22:28
○ 2026-09-03 17:01:34
○ 2026-09-03 21:34:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
notdefined.dev	emma.ns.cloudflare.com, noah.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.133

NS records: emma.ns.cloudflare.com, noah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for notdefined.dev (unsigned zone)

⏱️ Timing

Total: 848ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.73.202, 172.67.165.209`
AAAA	2	`2606:4700:3034::ac43:a5d1, 2606:4700:3033::6815:49ca`
NS	2	`emma.ns.cloudflare.com, noah.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 21), route1.mx.cloudflare.net (pri: 91)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`emma.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

notdefined.dev points to the four IP addresses 104.21.73.202, 172.67.165.209, 2606:4700:3033::6815:49ca and 2606:4700:3034::ac43:a5d1.

Additional host names — slot777s.cfd, pics.galagif.com, urbangallery.pk and two others — share IP numbers with notdefined.dev.

Name Servers

notdefined.dev is delegated to two name servers: emma.ns.cloudflare.com and noah.ns.cloudflare.com.

notdefined.dev shares its name server setup with other domains, including procterio.com, florsheim.co.il, rokjesdag.com and two others.

At least some of notdefined.dev's name servers are shared with other domains, for example fcqkv4tvdb.workers.dev, yz3132.com, justmoney.in and two more.

These name servers tend to be used in conjunction with the name servers kaiser.ns.cloudflare.com.

Host names with 6 IP numbers:

emma.ns.cloudflare.com resolves to 108.162.192.112, 172.64.32.112, 173.245.58.112 and 3 other IP addresses.

noah.ns.cloudflare.com resolves to 108.162.193.133, 172.64.33.133, 173.245.59.133 and 3 other IP addresses.

Mail Servers

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

notdefined.dev shares mail servers — at least in part — with other domains, including shortsww.com, ismailsoftdev.com, reactivarefirma.ro and two others.

Host names with 6 IP numbers:

route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

notdefined.dev - robtex.com

notdefined.dev

dev

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`notdefined.dev`

`dev`