kosuke.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

kosuke.dev

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:e03🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:8595🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.3Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.149🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NShera.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aa2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A2803:f800:50::6ca2:c0a2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhera.ns.cloudflare.com
A2a06:98c1:50::ac40:20a2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhera.ns.cloudflare.com
A108.162.192.162🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A172.64.32.162🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
A173.245.58.162🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhera.ns.cloudflare.com
NSphil.ns.cloudflare.com
A2606:4700:58::adf5:3b89🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A2803:f800:50::6ca2:c189🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRphil.ns.cloudflare.com
A2a06:98c1:50::ac40:2189🇺🇸 Cloudflare2a06:98c1:50::/45
PTRphil.ns.cloudflare.com
A108.162.193.137🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A172.64.33.137🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
A173.245.59.137🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRphil.ns.cloudflare.com
MXroute2.mx.cloudflare.net ⭐
A2606:4700:f5::e🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::f🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A2606:4700:f5::10🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.17Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.18Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
A162.159.205.19Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute2.mx.cloudflare.net
MXroute3.mx.cloudflare.net(55)
A2606:4700:f5::11🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::12🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A2606:4700:f5::13🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.23Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.24Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
A162.159.205.25Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute3.mx.cloudflare.net
MXroute1.mx.cloudflare.net(100)
A2606:4700:f5::b🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::c🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A2606:4700:f5::d🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.11Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.12Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
A162.159.205.13Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroute1.mx.cloudflare.net
TXTgoogle-site-verification=dyC2YPncRM3ez9OeOLMYX4fpx2WcGjkM_kN-yVcue90
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.3, 172.67.133.149
IPv6 hints2606:4700:3030::6815:e03, 2606:4700:3030::ac43:8595
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=31, name=cloudflare-ech.com
SOAhera.ns.cloudflare.comdns@cloudflare.com serial=2419953959

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

kosuke.pages.dev
kosuke.photography
kosuke.world
kosuke.top
kosuke.workers.dev
kosuke.now.sh
kosuke.jp
kosuke.se
kosuke.com
kosuke.co.uk
kosuke.xyz
kosuke.si
kosuke.net
kosuke.org
kosuke.cc
kosuke.de
kosuke.vercel.app
kosuke.ai
kosuke.ink
kosuke.app
kosuke.dev

Similar names

suekko.com
kekosu.cn
kueoks.s3.amazonaws.com
koskue.cn
kousek.at
kekous.synology.me
sekkou.jp
kukeos.com
kukseo.net
ekosku.com
suekko.co.jp
kekuso.cn
uskoke.de
osekku.com
eskuko.com
kuesok.shop
kekous.com
suekko.net
kousek.cz
ekkous.ch
koskue.fi
sekouk.com
kuokse.xyz
sokuke.com
esoukk.ae
sukeko.xyz
kokesu.com
soukke.com
koseku.cn
sekkou.com
koseuk.com
keouks.com
sokeku.cn
ukokes.com
sekouk.com.ph
kukseo.com

Previous names

kostka.dev
kostly.dev
kostner.dev
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kostyl.dev
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kosu.dev
kosugi.dev

Next names

kosuketakahashi.dev
kosukeyama(0x73686974)a.dev
kosumi.dev
kosumo.dev
kosvrouvas.dev
kosy.dev
kosz.dev
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kotak.dev

DNS History

9 records (9 active, 0 former)

NShera.ns.cloudflare.comphil.ns.cloudflare.comMXroute1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.netA104.21.14.3172.67.133.1492606:4700:3030::6815:e032606:4700:3030::ac43:8595
●NShera.ns.cloudflare.com2026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●NSphil.ns.cloudflare.com2026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●MXroute1.mx.cloudflare.net2026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●MXroute2.mx.cloudflare.net2026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●MXroute3.mx.cloudflare.net2026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●A104.21.14.32026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●A172.67.133.1492026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●A2606:4700:3030::6815:e032026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28
●A2606:4700:3030::ac43:85952026-08-19 → 2026-11-12 · 2 obs
● 2026-08-19 23:03:16
● 2026-11-12 12:35:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...-
kosuke.devphil.ns.cloudflare.com, hera.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.162

NS records: phil.ns.cloudflare.com, hera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kosuke.dev (unsigned zone)

⏱️ Timing

Total: 402ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.14.3, 172.67.133.149
AAAA22606:4700:3030::ac43:8595, 2606:4700:3030::6815:e03
NS2hera.ns.cloudflare.com, phil.ns.cloudflare.com
MX3route1.mx.cloudflare.net (pri: 100), route2.mx.cloudflare.net (pri: 27)...
TXT2google-site-verification=dyC2YPncRM3ez9O, v=spf1 include:_spf.mx.cloudflare.net ~a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1hera.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

kosuke.dev directs to four IP numbers, which are 104.21.14.3, 172.67.133.149, 2606:4700:3030::6815:e03 and 2606:4700:3030::ac43:8595.

Additional host names — jd77apk.com, pergole-rulouri-copertine.ro, www.nordbib.no and two others — share IP numbers with kosuke.dev.

Name Servers

kosuke.dev is delegated to two name servers: hera.ns.cloudflare.com and phil.ns.cloudflare.com.

kosuke.dev shares its name server setup with other domains, including bk8jsid8.com, bk8sgd.vip, bk-8khgoods.com and two others.

There is at least partial name server overlap between kosuke.dev and other domains — offwithyourweekend.com, camyl.org, usob.it and two more among them.

The name servers malavika.ns.cloudflare.com, bart.ns.cloudflare.com and kai.ns.cloudflare.com are often found in combination with these name servers.

Host names with 6 IP numbers:

hera.ns.cloudflare.com resolves to 108.162.192.162, 172.64.32.162, 173.245.58.162 and 3 other IP addresses.

phil.ns.cloudflare.com resolves to 108.162.193.137, 172.64.33.137, 173.245.59.137 and 3 other IP addresses.

Mail Servers

Incoming mail for kosuke.dev is delivered via three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

kosuke.dev shares mail servers — at least in part — with other domains, including 12cx.web.id, plumbingportlandserv.com, 345intel.com and two others.

Host names with 6 IP numbers:

route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.