builtopen.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

builtopen.dev

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:a026🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:eba🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.186Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.160.38🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSalgin.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b3d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalgin.ns.cloudflare.com
A2803:f800:50::6ca2:c13d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRalgin.ns.cloudflare.com
A2a06:98c1:50::ac40:213d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRalgin.ns.cloudflare.com
A108.162.193.61🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalgin.ns.cloudflare.com
A172.64.33.61🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalgin.ns.cloudflare.com
A173.245.59.61🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalgin.ns.cloudflare.com
NSkia.ns.cloudflare.com
A2606:4700:50::adf5:3ab3🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkia.ns.cloudflare.com
A2803:f800:50::6ca2:c0b3🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkia.ns.cloudflare.com
A2a06:98c1:50::ac40:20b3🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkia.ns.cloudflare.com
A108.162.192.179🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkia.ns.cloudflare.com
A172.64.32.179🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkia.ns.cloudflare.com
A173.245.58.179🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkia.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.186, 172.67.160.38
IPv6 hints2606:4700:3031::ac43:a026, 2606:4700:3032::6815:eba
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=15, name=cloudflare-ech.com
SOAalgin.ns.cloudflare.comdns@cloudflare.com serial=2413979301

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

builtopen.xyz
builtopen.com
builtopen.work
builtopen.dev

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Previous names

builtbythang.dev
builtbytl.dev
builtbyupshift.dev
builtbyvictor.dev
builtbyviv.dev
builtbyvivek.dev
builtcustom.dev
builtdifferent.dev
builtdifferently.dev
builtdigital.dev
builtfor.dev
builtfordental.dev
builtforeden.dev
builtforhumans.dev
builti.dev
builtify.dev
builtinorbit.dev
builtit.dev
builtnoble.dev
builton.dev

Next names

builtsimple.dev
builtthought.dev
builttocode.dev
builtwithcare.dev
builtwithclaude.dev
builtwithcode.dev
builtwithdata.dev
builtwithlumea.dev
builtwithpurpose.dev
builtwithrobots.dev
builtwithx.dev
builtworld.dev
buining.dev
buiquangha.dev
buitelaar.dev
buitenzorg.dev
buitheanh.dev
buja.dev
bujalski.dev

DNS History

10 records (6 active, 4 former)

NSalgin.ns.cloudflare.comkia.ns.cloudflare.comA104.21.14.186172.67.160.382606:4700:3031::ac43:a0262606:4700:3032::6815:eba188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSalgin.ns.cloudflare.com2026-09-08 → 2026-09-10 · 2 obs
● 2026-09-08 04:26:10
● 2026-09-10 06:10:16
●NSkia.ns.cloudflare.com2026-09-08 → 2026-09-10 · 2 obs
● 2026-09-08 04:26:10
● 2026-09-10 06:10:16
●A104.21.14.1862026-09-09 → 2026-09-10 · 3 obs
○ 2026-09-08 04:26:10
● 2026-09-09 12:32:28
● 2026-09-10 06:10:16
●A172.67.160.382026-09-09 → 2026-09-10 · 3 obs
○ 2026-09-08 04:26:10
● 2026-09-09 12:32:28
● 2026-09-10 06:10:16
○A188.114.96.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 04:26:10
○ 2026-09-09 12:32:28
○ 2026-09-10 06:10:16
○A188.114.97.02026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 04:26:10
○ 2026-09-09 12:32:28
○ 2026-09-10 06:10:16
●A2606:4700:3031::ac43:a0262026-09-09 → 2026-09-10 · 3 obs
○ 2026-09-08 04:26:10
● 2026-09-09 12:32:28
● 2026-09-10 06:10:16
●A2606:4700:3032::6815:eba2026-09-09 → 2026-09-10 · 3 obs
○ 2026-09-08 04:26:10
● 2026-09-09 12:32:28
● 2026-09-10 06:10:16
○A2a06:98c1:3120::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 04:26:10
○ 2026-09-09 12:32:28
○ 2026-09-10 06:10:16
○A2a06:98c1:3121::2026-09-08 → 2026-09-08 · 3 obs
● 2026-09-08 04:26:10
○ 2026-09-09 12:32:28
○ 2026-09-10 06:10:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
builtopen.devkia.ns.cloudflare.com, algin.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.61

NS records: kia.ns.cloudflare.com, algin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for builtopen.dev (unsigned zone)

⏱️ Timing

Total: 3969ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.14.186, 172.67.160.38
AAAA22606:4700:3032::6815:eba, 2606:4700:3031::ac43:a026
NS2algin.ns.cloudflare.com, kia.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1algin.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

builtopen.dev points to the four IP addresses 104.21.14.186, 172.67.160.38, 2606:4700:3031::ac43:a026 and 2606:4700:3032::6815:eba.

ascenthealthllc.doctor, kraamzorgcorina.nl, cxsxy.net and two other host names share IP numbers with builtopen.dev.

Name Servers

The NS records for builtopen.dev delegate to algin.ns.cloudflare.com and kia.ns.cloudflare.com.

builtopen.dev uses the same name servers as several other domains — among them bqi610eg57.pages.dev, h3i.it, amg-world.co.uk and two more.

At least some of builtopen.dev's name servers are shared with other domains, for example construction-smart-ai.cloud, feniksu.ru, stelle-hrtalenthafen.de and two more.

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

Hostnames that resolve to 6 IP addresses:

algin.ns.cloudflare.com maps to 108.162.193.61, 172.64.33.61, 173.245.59.61 and 3 additional IP addresses.

kia.ns.cloudflare.com maps to 108.162.192.179, 172.64.32.179, 173.245.58.179 and 3 additional IP addresses.