🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`unknownuser.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:c046^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:2bfd^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.253^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.70^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`syeef.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`syeef.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`syeef.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`syeef.ns.cloudflare.com`
		A	108.162.195.238^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`syeef.ns.cloudflare.com`
		A	162.159.44.238^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`syeef.ns.cloudflare.com`
		A	172.64.35.238^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`syeef.ns.cloudflare.com`
NS	`ursula.ns.cloudflare.com`
		A	2606:4700:50::a29f:26bf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ursula.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2bf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ursula.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22bf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ursula.ns.cloudflare.com`
		A	108.162.194.191^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ursula.ns.cloudflare.com`
		A	162.159.38.191^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ursula.ns.cloudflare.com`
		A	172.64.34.191^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ursula.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		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	`route3.mx.cloudflare.net`⁽⁵⁶⁾
		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	`route2.mx.cloudflare.net`⁽⁸⁷⁾
		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	`google-site-verification=mvTAdOOVrpd4NtyEsyhsFdX2s7_ArEJZT1cJ05iYo4E`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.253, 172.67.192.70
		IPv6 hints	2606:4700:3034::ac43:c046, 2606:4700:3035::6815:2bfd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=71, name=cloudflare-ech.com
SOA	`syeef.ns.cloudflare.com`dns@cloudflare.com serial=2415933037

`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

unknownuser.co.uk

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unknownuser.net

unknownuser.email

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unknownuser.ru

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unknownuser.workers.dev

unknownuser.de

unknownuser.cv

unknownuser.com

Similar names

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Previous names

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DNS History

9 records (9 active, 0 former)

●NSsyeef.ns.cloudflare.com2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●NSursula.ns.cloudflare.com2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●MXroute1.mx.cloudflare.net2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●MXroute2.mx.cloudflare.net2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●MXroute3.mx.cloudflare.net2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●A104.21.43.2532026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●A172.67.192.702026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●A2606:4700:3034::ac43:c0462026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

●A2606:4700:3035::6815:2bfd2026-09-25 → 2026-11-09 · 2 obs

● 2026-09-25 23:15:12
● 2026-11-09 14:02:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
unknownuser.dev	ursula.ns.cloudflare.com, syeef.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.238

NS records: ursula.ns.cloudflare.com, syeef.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for unknownuser.dev (unsigned zone)

⏱️ Timing

Total: 450ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.43.253, 172.67.192.70`
AAAA	2	`2606:4700:3034::ac43:c046, 2606:4700:3035::6815:2bfd`
NS	2	`syeef.ns.cloudflare.com, ursula.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 50), route3.mx.cloudflare.net (pri: 56)...`
TXT	2	`google-site-verification=mvTAdOOVrpd4Nty, v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`syeef.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

unknownuser.dev resolves to four IP addresses: 104.21.43.253, 172.67.192.70, 2606:4700:3034::ac43:c046 and 2606:4700:3035::6815:2bfd.

Two other host names, along with www.capeunion.org, 67fios.com.br and iamgcz.com, also share IP numbers with unknownuser.dev.

Name Servers

The NS records for unknownuser.dev delegate to syeef.ns.cloudflare.com and ursula.ns.cloudflare.com.

unknownuser.dev shares its NS records with other domains, for example tuning-parts.md, vvcrk.pages.dev, lh-hc17.co.kr and two others.

unknownuser.dev has at least partial name server overlap with other domains, such as directmngr.workers.dev, chdz13.com, xyjinsuo.cn and two others.

These name servers tend to appear together with the name servers robin.ns.cloudflare.com, ada.ns.cloudflare.com and gwen.ns.cloudflare.com.

DNS names with 6 IP addresses:

syeef.ns.cloudflare.com maps to 108.162.195.238, 162.159.44.238, 172.64.35.238 and 3 additional IP addresses.

ursula.ns.cloudflare.com maps to 108.162.194.191, 162.159.38.191, 172.64.34.191 and 3 additional IP addresses.

Mail Servers

unknownuser.dev has 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 unknownuser.dev and other domains, including themfest.com, hvac-maintenance-pompano-beach-fl.com, tryhobby.app and two others.

DNS names with 6 IP addresses:

route1.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.

route2.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.

route3.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.

unknownuser.dev - robtex.com

unknownuser.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

`unknownuser.dev`

`dev`