firstuser.dev - robtex.com

🛡️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=201, 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.vercel.app
firstuser.cloud
firstuser.shop

Similar names

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

Previous names

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

Next names

firstversion.dev
firstvibe.dev
firstview.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
fiscal402.dev
fiscally.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 → 2026-09-14 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-14 09:26:32
●NStia.ns.cloudflare.com2026-09-08 → 2026-09-14 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-14 09:26:32
●MXin.euromail.dev2026-09-08 → 2026-09-14 · 2 obs
● 2026-09-08 01:49:20
● 2026-09-14 09:26:32
●A104.21.76.652026-09-08 → 2026-09-14 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-14 09:26:32
●A172.67.190.2382026-09-08 → 2026-09-14 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-14 09:26:32
○A188.114.96.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-14 09:26:32
○A188.114.97.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-14 09:26:32
●A2606:4700:3033::ac43:beee2026-09-08 → 2026-09-14 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-14 09:26:32
●A2606:4700:3034::6815:4c412026-09-08 → 2026-09-14 · 3 obs
○ 2026-09-08 01:49:20
● 2026-09-08 07:53:12
● 2026-09-14 09:26:32
○A2a06:98c1:3120::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-14 09:26:32
○A2a06:98c1:3121::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 01:49:20
○ 2026-09-08 07:53:12
○ 2026-09-14 09:26:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
firstuser.devtia.ns.cloudflare.com, marty.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.229

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: 644ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.76.65, 172.67.190.238
AAAA22606:4700:3033::ac43:beee, 2606:4700:3034::6815:4c41
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 directs to four IP numbers, which are 104.21.76.65, 172.67.190.238, 2606:4700:3033::ac43:beee and 2606:4700:3034::6815:4c41.

artesanias1.cc, qrtez.com, atlascross.com and two other host names share IP numbers with firstuser.dev.

Name Servers

firstuser.dev uses two name servers for its delegation: marty.ns.cloudflare.com and tia.ns.cloudflare.com.

firstuser.dev uses the same name servers as several other domains — among them kierownik.org, joaquingalocha.workers.dev, teladmedia.pages.dev and two more.

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.

Hostnames that resolve to 6 IP addresses:

Hostname marty.ns.cloudflare.com directs to 108.162.193.204, 172.64.33.204 and 173.245.59.204 along with 3 other IP addresses.

Hostname tia.ns.cloudflare.com directs to 108.162.192.229, 172.64.32.229 and 173.245.58.229 along with 3 other IP addresses.

Mail Servers

Mail for firstuser.dev is handled by a single mail server, in.euromail.dev.