🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`error404.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:33fb^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:c083^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.51.251^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.131^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`blair.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2679^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c279^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`blair.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2279^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`blair.ns.cloudflare.com`
		A	108.162.194.121^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	162.159.38.121^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	172.64.34.121^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
NS	`harley.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c80^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c380^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2380^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harley.ns.cloudflare.com`
		A	108.162.195.128^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	162.159.44.128^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
		A	172.64.35.128^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harley.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.51.251, 172.67.192.131
		IPv6 hints	2606:4700:3030::6815:33fb, 2606:4700:3035::ac43:c083
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOA	`blair.ns.cloudflare.com`dns@cloudflare.com serial=2413799911

`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

error404.altervista.org

error404.dk

error404.it

error404.re

error404.se

error404.pages.dev

error404.xyz

error404.be

error404.at

error404.kr

error404.fi

error404.fun

error404.ath.cx

error404.co.kr

error404.club

error404.net

error404.ae

error404.uk

error404.co

error404.fr

error404.best

error404.app

error404.gr

error404.bond

error404.fyi

error404.de

error404.4lima.de

error404.boutique

error404.web.id

error404.ph

error404.space

error404.mx

error404.cl

error404.cc

error404.my.id

error404.synology.me

error404.site

error404.host

error404.dev

error404.com

error404.id

error404.me

error404.ru

error404.meme

error404.nu

error404.com.au

error404.icu

error404.eu

error404.es

error404.win

error404.lv

error404.org

error404.company

error404.global

error404.nl

error404.click

error404.ca

error404.co.uk

error404.co.in

error404.pl

error404.solutions

error404.co.il

error404.ai

error404.cz

error404.su

error404.help

error404.info

error404.dog

Similar names

Previous names

errfix.dev

errflow.dev

errin.dev

errington.dev

errk.dev

errka.dev

errlens.dev

errling.dev

errlings.dev

errlo.dev

errlog.dev

errly.dev

errnode.dev

errnoh.dev

errol.dev

erroneous.dev

error-fr.dev

error-log.dev

error-reference.dev

error.dev

Next names

DNS History

11 records (11 active, 0 former)

●NSblair.ns.cloudflare.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●NSharley.ns.cloudflare.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●MXeforward1.registrar-servers.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●MXeforward2.registrar-servers.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●MXeforward3.registrar-servers.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●MXeforward4.registrar-servers.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●MXeforward5.registrar-servers.com2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●A104.21.51.2512026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●A172.67.192.1312026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●A2606:4700:3030::6815:33fb2026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

●A2606:4700:3035::ac43:c0832026-09-03 → 2026-09-13 · 2 obs

● 2026-09-03 13:59:50
● 2026-09-13 11:42:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
error404.dev	blair.ns.cloudflare.com, harley.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.121

NS records: blair.ns.cloudflare.com, harley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for error404.dev (unsigned zone)

⏱️ Timing

Total: 745ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.51.251, 172.67.192.131`
AAAA	2	`2606:4700:3030::6815:33fb, 2606:4700:3035::ac43:c083`
NS	2	`blair.ns.cloudflare.com, harley.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`blair.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

error404.dev has four IP addresses: 104.21.51.251, 172.67.192.131, 2606:4700:3030::6815:33fb and 2606:4700:3035::ac43:c083.

Additional host names — bulitka.za.com, khwhfwm.com, sakhsham.com and two others — share IP numbers with error404.dev.

Name Servers

error404.dev is served by two delegated name servers, blair.ns.cloudflare.com and harley.ns.cloudflare.com.

error404.dev shares its name server setup with other domains, including chickengg.fi, maxgroup.in.net, funkygiftsgalore.uk.com and two others.

error404.dev partially shares its NS delegation with several other domains, including chrisgoodsjutri.shop, mohandposhimac38.workers.dev, filia-site.pages.dev and two others.

In DNS configurations, these name servers often share authority with edward.ns.cloudflare.com, rodrigo.ns.cloudflare.com, davina.ns.cloudflare.com and 3 other name servers.

Host names with 6 IP numbers:

blair.ns.cloudflare.com carries IP addresses 108.162.194.121, 162.159.38.121 and 172.64.34.121, with 3 other addresses beyond those.

harley.ns.cloudflare.com carries IP addresses 108.162.195.128, 162.159.44.128 and 172.64.35.128, with 3 other addresses beyond those.

Mail Servers

Mail for error404.dev is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

error404.dev shares mail servers — at least in part — with other domains, including slotbagus.com, sustainaihub.com, bamskinwear.com and two others.

The mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com regularly co-occur with these mail servers.

Host names pointing to a single IP address:

eforward1.registrar-servers.com points to the IP address 162.255.118.51.

eforward2.registrar-servers.com points to the IP address 162.255.118.52.

eforward3.registrar-servers.com points to the IP address 162.255.118.51.

eforward4.registrar-servers.com points to the IP address 162.255.118.52.

eforward5.registrar-servers.com points to the IP address 162.255.118.51.

eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com are host names that all point to 162.255.118.51.

These two host names — eforward2.registrar-servers.com and eforward4.registrar-servers.com — each point to 162.255.118.52 IP addresses.