firstuser.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

firstuser.dev

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:beee🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4c41🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.76.65Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.190.238🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmarty.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bcc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarty.ns.cloudflare.com
A2803:f800:50::6ca2:c1cc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmarty.ns.cloudflare.com
A2a06:98c1:50::ac40:21cc🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmarty.ns.cloudflare.com
A108.162.193.204🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarty.ns.cloudflare.com
A172.64.33.204🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarty.ns.cloudflare.com
A173.245.59.204🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarty.ns.cloudflare.com
NStia.ns.cloudflare.com
A2606:4700:50::adf5:3ae5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtia.ns.cloudflare.com
A2803:f800:50::6ca2:c0e5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtia.ns.cloudflare.com
A2a06:98c1:50::ac40:20e5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtia.ns.cloudflare.com
A108.162.192.229🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtia.ns.cloudflare.com
A172.64.32.229🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtia.ns.cloudflare.com
A173.245.58.229🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtia.ns.cloudflare.com
MXin.euromail.dev ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.76.65, 172.67.190.238
IPv6 hints2606:4700:3033::ac43:beee, 2606:4700:3034::6815:4c41
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=253, name=cloudflare-ech.com
SOAmarty.ns.cloudflare.comdns@cloudflare.com serial=2413775059

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
🔒 HSTS Preload (+subdomains)

Same first word

firstuser.org
firstuser.dev
firstuser.net
firstuser.in
firstuser.me
firstuser.cloud
firstuser.shop

Similar names

userfirst.co.uk
userfirst.co.nz
surefirst.workers.dev
firstsure.in
userfirst.co
surefirst.xyz
userfirst.world
userfirst.xyz
userfirst.co.jp
userfirst.net
sertifrus.pro
userfirst.app
userfirst.ru
surefirst.net
userfirst.agency
userfirst.dk
userfirst.ca
userfirst.solutions
userfirst.com
itsurfers.org
userfirst.expert
userfirst.jp
fruissert.com
userfirst.org
userfirst.icu
surefirst.com.tw
firstruse.ai
userfirst.us
userfirst.eu
userfirst.com.mx

Previous names

firstresort.dev
firstresponderprocessing.dev
firstresponse-ed.dev
firstresponseims.dev
firstrun.dev
firstry.dev
firstsite.dev
firstsoft.dev
firstspark.dev
firststeps.dev
firststreet.dev
firststrike.dev
firststring.dev
firststudent.dev
firsttable.dev
firsttimeinforever.dev
firsttoken.dev
firsttry.dev

Next names

firstversion.dev
firstvibe.dev
firstwalkers.dev
firstwatch.dev
firstwork.dev
firstx.dev
firt.dev
firth.dev
firu.dev
firxtjohn.dev
firy.dev
fis-ltd.dev
fis.dev
fisautomation.dev
fisc.dev
fiscaal.dev
fiscally.dev
fiscaltech.dev
fisch.dev

DNS History

11 records (7 active, 4 former)

NSmarty.ns.cloudflare.comtia.ns.cloudflare.comMXin.euromail.devA104.21.76.65172.67.190.2382606:4700:3033::ac43:beee2606:4700:3034::6815:4c41188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSmarty.ns.cloudflare.com2026-09-08 → 2026-09-11 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-11 08:43:58
●NStia.ns.cloudflare.com2026-09-08 → 2026-09-11 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-11 08:43:58
●MXin.euromail.dev2026-09-08 → 2026-09-11 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-11 08:43:58
●A104.21.76.652026-09-08 → 2026-09-11 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-11 08:43:58
●A172.67.190.2382026-09-08 → 2026-09-11 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-11 08:43:58
○A188.114.96.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-11 08:43:58
○A188.114.97.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-11 08:43:58
●A2606:4700:3033::ac43:beee2026-09-08 → 2026-09-11 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-11 08:43:58
●A2606:4700:3034::6815:4c412026-09-08 → 2026-09-11 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-11 08:43:58
○A2a06:98c1:3120::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-11 08:43:58
○A2a06:98c1:3121::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-11 08:43:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
firstuser.devtia.ns.cloudflare.com, marty.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.229

NS records: tia.ns.cloudflare.com, marty.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstuser.dev (unsigned zone)

⏱️ Timing

Total: 663ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.76.65, 172.67.190.238
AAAA22606:4700:3034::6815:4c41, 2606:4700:3033::ac43:beee
NS2marty.ns.cloudflare.com, tia.ns.cloudflare.com
MX1in.euromail.dev (pri: 10)
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1marty.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

firstuser.dev points to the four IP addresses 104.21.76.65, 172.67.190.238, 2606:4700:3033::ac43:beee and 2606:4700:3034::6815:4c41.

qrtez.com, atlascross.com, zeilcar.cn plus two other host names have IP numbers in common with firstuser.dev.

Name Servers

firstuser.dev has two authoritative name servers — marty.ns.cloudflare.com and tia.ns.cloudflare.com.

The name server configuration of firstuser.dev is shared with other domains, for instance kierownik.org, joaquingalocha.workers.dev, teladmedia.pages.dev and two others.

The name servers of firstuser.dev overlap at least partially with those of other domains — among them mintfernsp.name, decisionsbox.shop, buyu4066.com and two more.

These name servers commonly appear in combination with the name servers alexa.ns.cloudflare.com.

Hosts with 6 IP addresses each:

marty.ns.cloudflare.com points to 108.162.193.204, 172.64.33.204, 173.245.59.204 and 3 other IP addresses.

tia.ns.cloudflare.com points to 108.162.192.229, 172.64.32.229, 173.245.58.229 and 3 other IP addresses.

Mail Servers

firstuser.dev uses one mail server — in.euromail.dev.