concept.dev - robtex.com

concept.dev

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c01a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:59f1🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.89.241Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.192.26🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbob.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b68🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A2803:f800:50::6ca2:c168🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbob.ns.cloudflare.com
A2a06:98c1:50::ac40:2168🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbob.ns.cloudflare.com
A108.162.193.104🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A172.64.33.104🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A173.245.59.104🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
NSoaklyn.ns.cloudflare.com
A2606:4700:50::a29f:265a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRoaklyn.ns.cloudflare.com
A2803:f800:50::6ca2:c25a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRoaklyn.ns.cloudflare.com
A2a06:98c1:50::ac40:225a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRoaklyn.ns.cloudflare.com
A108.162.194.90🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRoaklyn.ns.cloudflare.com
A162.159.38.90Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRoaklyn.ns.cloudflare.com
A172.64.34.90🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRoaklyn.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c1d::1a🇺🇸 Google2607:f8b0:4004::/48
PTRww-in-f26.1e100.net
A142.251.167.27🇺🇸 Google142.251.167.0/24
PTRww-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTapple-domain-verification=qWgGIDoPXV4CHLRO
TXTgoogle-gws-recovery-domain-verification=66601553
TXTgoogle-site-verification=0eOy0nGPJZ4AB4NrU_GNdKOkA0a4zo8pItBdO_uR1Is
TXTgoogle-site-verification=YCgD1BEhgPcEXIGX6mHaE1RYQOqQbEomvA9_4Jsjm00
TXTgoogle-site-verification=lDdgdhZ5QPyxONzl2GofISCZ08oOntcNmI_N3ZGN4sk
TXTv=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.89.241, 172.67.192.26
IPv6 hints2606:4700:3032::ac43:c01a, 2606:4700:3036::6815:59f1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com
SOAbob.ns.cloudflare.comdns@cloudflare.com serial=2402907491

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

concept.works
concept.management
concept.ly
concept.co.nz
concept.bio
concept.co.uk
concept.md
concept.co.in
concept.biz
concept.net
concept.community
concept.se
concept.ru
concept.fit
concept.mobi
concept.inf.br
concept.blue
concept.lv
concept.fr
concept.today
concept.uz
concept.design
concept.pro
concept.info
concept.irish
concept.ne.jp
concept.net.ph
concept.mk
concept.ee
concept.ge
concept.co
concept.study
concept.by
concept.lu
concept.bg
concept.furniture
concept.wine
concept.partners
concept.com.ru
concept.am
concept.es
concept.ac
concept.haus
concept.dk
concept.ph
concept.ind.in
concept.net.nz
concept.systems
concept.in.ua
concept.one
concept.nl
concept.ch
concept.wiki
concept.engineering
concept.sk
concept.is
concept.tech
concept.house
concept.com
concept.co.za
concept.supply
concept.uni5.net
concept.builders
concept.catering
concept.academy
concept.com.au
concept.agency
concept.fi
concept.name
concept.cc
concept.bz
concept.com.mk
concept.de
concept.cash
concept.network
concept.com.tr
concept.ag
concept.sarl
concept.media
concept.be
concept.dev
concept.cl
concept.pf
concept.legal
concept.cleaning
concept.awsapps.com
concept.boutique
concept.vc
concept.guide
concept.ma
concept.it
concept.la
concept.fm
concept.com.mx
concept.kg
concept.camp
concept.ro
concept.sa.com
concept.energy
concept.coffee
concept.ws
concept.clothing
concept.co.at
concept.ir
concept.io
concept.us
concept.com.br
concept.pt
concept.net.pl

Similar names

tecnopc.ws
pcnetco.com
cnoptec.com
tecnopc.info
poncect.com
ceptcon.eu
cnoptec.cn
pctecno.cl
ntpceoc.co.in
tecnopc.com
cpconet.com
ccopnet.com
pconect.com
ceptcon.net
tecnopc.com.uy
ceptcon.de
tecnopc.net
tecnopc.org
tcepcon.com
ceptcon.com
pctecno.com
ptconec.com
tecnopc.es

DNS History

11 records (11 active, 0 former)

NSbob.ns.cloudflare.comoaklyn.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.89.241172.67.192.262606:4700:3032::ac43:c01a2606:4700:3036::6815:59f1
●NSbob.ns.cloudflare.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●NSoaklyn.ns.cloudflare.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●MXalt1.aspmx.l.google.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●MXalt2.aspmx.l.google.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●MXalt3.aspmx.l.google.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●MXalt4.aspmx.l.google.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●MXaspmx.l.google.com2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●A104.21.89.2412026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●A172.67.192.262026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●A2606:4700:3032::ac43:c01a2026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24
●A2606:4700:3036::6815:59f12026-04-27 → 2026-04-29 · 2 obs
● 2026-04-27 11:38:00
● 2026-04-29 01:03:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...-
concept.devbob.ns.cloudflare.com, oaklyn.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.90

NS records: bob.ns.cloudflare.com, oaklyn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concept.dev (unsigned zone)

⏱️ Timing

Total: 622ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.192.26, 104.21.89.241
AAAA22606:4700:3032::ac43:c01a, 2606:4700:3036::6815:59f1
NS2bob.ns.cloudflare.com, oaklyn.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT6apple-domain-verification=qWgGIDoPXV4CHL, google-gws-recovery-domain-verification=...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bob.ns.cloudflare.com dns.cloudflare.com

Analysis

IP Addresses

concept.dev resolves to four IP numbers: 2606:4700:3032::ac43:c01a, 2606:4700:3036::6815:59f1, 104.21.89.241 and 172.67.192.26.

Other host names such as babycentar.ba, thuiszorgmakelaar.nl, dld.ae, 113.57.13www.akcioskozmetikum.boltaneten.hu and www.foot-problems.com share IPs with concept.dev.

Name Servers

concept.dev is delegated to two name servers: bob.ns.cloudflare.com and oaklyn.ns.cloudflare.com.

concept.dev shares the same name server setup as s15m.nl, cnzx.top, djpaneel.com, budionserver.nl and djpaneel.nl.

concept.dev at least partially shares name servers with other domains, for instance lcg.com.tw, krab-5.cc, hcasmallagency.com, cavallarosigns.com and ydjmj.com.

Host names with six IP numbers:

bob.ns.cloudflare.com points to 2606:4700:58::adf5:3b68, 2803:f800:50::6ca2:c168, 2a06:98c1:50::ac40:2168, 108.162.193.104, 172.64.33.104 and 173.245.59.104.

oaklyn.ns.cloudflare.com points to 2606:4700:50::a29f:265a, 2803:f800:50::6ca2:c25a, 2a06:98c1:50::ac40:225a, 108.162.194.90, 162.159.38.90 and 172.64.34.90.

Mail Servers

Five mail servers handle concept.dev: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

concept.dev shares at least partially some mail servers with other domains, including uniessacorporativa.com.br, ns500765.ns500699.ns500693.ns500693.ns500699.ns500588.ns500699.ns500588.ns500612.ns500632.ns500632.ns500632.dtrkdll.com, covemountain.com, skeeley.com and meva.org.br.

these mail servers are often used together with mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

Hostname aspmx.l.google.com points to 2607:f8b0:4004:c1d::1a and 142.251.167.27.

Hostname alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27.

Hostname alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.26.

Hostname alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.27.

Hostname alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.26.