foursystem.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

foursystem.dev

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:2c31🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c316🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.44.49Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.195.22🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScruz.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a58🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcruz.ns.cloudflare.com
A2803:f800:50::6ca2:c058🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcruz.ns.cloudflare.com
A2a06:98c1:50::ac40:2058🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcruz.ns.cloudflare.com
A108.162.192.88🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcruz.ns.cloudflare.com
A172.64.32.88🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcruz.ns.cloudflare.com
A173.245.58.88🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcruz.ns.cloudflare.com
NSdylan.ns.cloudflare.com
A2606:4700:58::a29f:2cbb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdylan.ns.cloudflare.com
A2803:f800:50::6ca2:c3bb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdylan.ns.cloudflare.com
A2a06:98c1:50::ac40:23bb🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdylan.ns.cloudflare.com
A108.162.195.187🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdylan.ns.cloudflare.com
A162.159.44.187Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdylan.ns.cloudflare.com
A172.64.35.187🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdylan.ns.cloudflare.com
TXTMS=ms73826054
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.44.49, 172.67.195.22
IPv6 hints2606:4700:3032::6815:2c31, 2606:4700:3037::ac43:c316
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=18, name=cloudflare-ech.com
SOAcruz.ns.cloudflare.comdns@cloudflare.com serial=2411607467

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

foursystem.dev
foursystem.com.br

Similar names

rufosystem.tech
systemfour.co.th
systemfour.de
systemfour.uk
systemfour.jp

Previous names

fournine.dev
fournines.dev
fourny.dev
fourone.dev
fouronefive.dev
fourotwo.dev
fourpaws.dev
fourpay.dev
fourpillars.dev
fourpointfive.dev
fourq.dev
fourrier.dev
fourscore.dev
fourseat.dev
foursevenseven.dev
fourside.dev
foursight.dev
foursignals.dev
foursniper.dev
fourspaces.dev

Next names

fourtech.dev
fourteen.dev
fourteenthfloor.dev
fourthbreakfast.dev
fourthcoffee.dev
fourthdimension.dev
fourthphase.dev
fourthspace.dev
fourthstreet.dev
fourthtime.dev
fourthwall.dev
fourtrace.dev
fourtwenty.dev
fourtwentynine.dev
fourtwentyseven.dev
fourtwo.dev
fourtwonine.dev
fourtwothree.dev
fourtytwo.dev
fouru.dev

DNS History

10 records (6 active, 4 former)

NScruz.ns.cloudflare.comdylan.ns.cloudflare.comA104.21.44.49172.67.195.222606:4700:3032::6815:2c312606:4700:3037::ac43:c316188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NScruz.ns.cloudflare.com2026-08-29 → 2026-09-10 · 2 obs
● 2026-08-29 22:12:48
● 2026-09-10 01:03:16
●NSdylan.ns.cloudflare.com2026-08-29 → 2026-09-10 · 2 obs
● 2026-08-29 22:12:48
● 2026-09-10 01:03:16
●A104.21.44.492026-09-01 → 2026-09-10 · 3 obs
○ 2026-08-29 22:12:48
● 2026-09-01 23:43:12
● 2026-09-10 01:03:16
●A172.67.195.222026-09-01 → 2026-09-10 · 3 obs
○ 2026-08-29 22:12:48
● 2026-09-01 23:43:12
● 2026-09-10 01:03:16
○A188.114.96.02026-08-29 → 2026-08-29 · 3 obs
● 2026-08-29 22:12:48
○ 2026-09-01 23:43:12
○ 2026-09-10 01:03:16
○A188.114.97.02026-08-29 → 2026-08-29 · 3 obs
● 2026-08-29 22:12:48
○ 2026-09-01 23:43:12
○ 2026-09-10 01:03:16
●A2606:4700:3032::6815:2c312026-09-01 → 2026-09-10 · 3 obs
○ 2026-08-29 22:12:48
● 2026-09-01 23:43:12
● 2026-09-10 01:03:16
●A2606:4700:3037::ac43:c3162026-09-01 → 2026-09-10 · 3 obs
○ 2026-08-29 22:12:48
● 2026-09-01 23:43:12
● 2026-09-10 01:03:16
○A2a06:98c1:3120::2026-08-29 → 2026-08-29 · 3 obs
● 2026-08-29 22:12:48
○ 2026-09-01 23:43:12
○ 2026-09-10 01:03:16
○A2a06:98c1:3121::2026-08-29 → 2026-08-29 · 3 obs
● 2026-08-29 22:12:48
○ 2026-09-01 23:43:12
○ 2026-09-10 01:03:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...-
foursystem.devcruz.ns.cloudflare.com, dylan.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.88

NS records: cruz.ns.cloudflare.com, dylan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for foursystem.dev (unsigned zone)

⏱️ Timing

Total: 851ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.44.49, 172.67.195.22
AAAA22606:4700:3032::6815:2c31, 2606:4700:3037::ac43:c316
NS2cruz.ns.cloudflare.com, dylan.ns.cloudflare.com
TXT1MS=ms73826054
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1cruz.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

foursystem.dev directs to four IP numbers, which are 104.21.44.49, 172.67.195.22, 2606:4700:3032::6815:2c31 and 2606:4700:3037::ac43:c316.

Two other host names, along with alpenalliance.email, qk3houronline.com and tyro9.shop, also share IP numbers with foursystem.dev.

Name Servers

foursystem.dev is served by two delegated name servers, cruz.ns.cloudflare.com and dylan.ns.cloudflare.com.

foursystem.dev shares its NS records with other domains, for example hdmovie2.ss, etleboro.org, teamcleaning.be and two others.

At least some of foursystem.dev's name servers are shared with other domains, for example madarkarhospital.online, are-blinds-or-curtains-more-energy-efficient.pages.dev, checkpointjournal.online and two more.

These name servers tend to be deployed in combination with the name servers west.ns.cloudflare.com and faye.ns.cloudflare.com.

DNS names with 6 IP addresses:

cruz.ns.cloudflare.com carries IP addresses 108.162.192.88, 172.64.32.88 and 173.245.58.88, with 3 other addresses beyond those.

dylan.ns.cloudflare.com carries IP addresses 108.162.195.187, 162.159.44.187 and 172.64.35.187, with 3 other addresses beyond those.