concept.dev - dns.ninja

`concept.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c01a^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:59f1^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.241^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.192.26^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`oaklyn.ns.cloudflare.com`
		A	2606:4700:50::a29f:265a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oaklyn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c25a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`oaklyn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:225a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`oaklyn.ns.cloudflare.com`
		A	108.162.194.90^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oaklyn.ns.cloudflare.com`
		A	162.159.38.90^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oaklyn.ns.cloudflare.com`
		A	172.64.34.90^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`oaklyn.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c27::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f26.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`apple-domain-verification=qWgGIDoPXV4CHLRO`
TXT	`google-gws-recovery-domain-verification=66601553`
TXT	`google-site-verification=0eOy0nGPJZ4AB4NrU_GNdKOkA0a4zo8pItBdO_uR1Is`
TXT	`google-site-verification=YCgD1BEhgPcEXIGX6mHaE1RYQOqQbEomvA9_4Jsjm00`
TXT	`google-site-verification=lDdgdhZ5QPyxONzl2GofISCZ08oOntcNmI_N3ZGN4sk`
TXT	`v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.89.241, 172.67.192.26
		IPv6 hints	2606:4700:3030::ac43:c01a, 2606:4700:3034::6815:59f1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2408258714

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

concept.plus

concept.works

concept.management

concept.ly

concept.co.nz

concept.bio

concept.co.uk

concept.health

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.pub

concept.uz

concept.design

concept.pro

concept.info

concept.homes

concept.irish

concept.ne.jp

concept.net.ph

concept.mk

concept.ee

concept.ge

concept.co

concept.study

concept.gallery

concept.by

concept.lu

concept.bg

concept.wine

concept.autos

concept.partners

concept.com.ru

concept.am

concept.bet

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.ruhr

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.church

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.com.do

concept.sa.com

concept.energy

concept.coffee

concept.ws

concept.clothing

concept.co.at

concept.ir

concept.io

concept.international

concept.us

concept.com.br

concept.pt

concept.net.pl

Similar names

tecnopc.ws

pcnetco.com

cnoptec.com

tecnopc.info

poncect.com

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

conectp.cloud

tcepcon.com

ceptcon.com

pctecno.com

ptconec.com

DNS History

13 records (11 active, 2 former)

●NSbob.ns.cloudflare.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●NSoaklyn.ns.cloudflare.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●MXalt1.aspmx.l.google.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●MXalt2.aspmx.l.google.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●MXalt3.aspmx.l.google.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●MXalt4.aspmx.l.google.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●MXaspmx.l.google.com2026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●A104.21.89.2412026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●A172.67.192.262026-04-27 → 2026-06-30 · 2 obs

● 2026-04-27 11:38:00
● 2026-06-30 19:20:10

●A2606:4700:3030::ac43:c01a2026-06-30 → 2026-06-30 · 2 obs

○ 2026-06-13 08:53:28
● 2026-06-30 19:20:10

○A2606:4700:3032::ac43:c01a2026-04-27 → 2026-06-13 · 3 obs

● 2026-04-27 11:38:00
● 2026-06-13 08:53:28
○ 2026-06-30 19:20:10

●A2606:4700:3034::6815:59f12026-06-30 → 2026-06-30 · 2 obs

○ 2026-06-13 08:53:28
● 2026-06-30 19:20:10

○A2606:4700:3036::6815:59f12026-04-27 → 2026-06-13 · 3 obs

● 2026-04-27 11:38:00
● 2026-06-13 08:53:28
○ 2026-06-30 19:20:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
concept.dev	oaklyn.ns.cloudflare.com, bob.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.90

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concept.dev (unsigned zone)

⏱️ Timing

Total: 820ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.192.26, 104.21.89.241`
AAAA	2	`2606:4700:3030::ac43:c01a, 2606:4700:3034::6815:59f1`
NS	2	`bob.ns.cloudflare.com, oaklyn.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	6	`apple-domain-verification=qWgGIDoPXV4CHL, google-gws-recovery-domain-verification=...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

concept.dev points to the four IP addresses 104.21.89.241, 172.67.192.26, 2606:4700:3030::ac43:c01a and 2606:4700:3034::6815:59f1.

Additional host names — babycentar.ba, thuiszorgmakelaar.nl, dld.ae and two others — share IP numbers with concept.dev.

Name Servers

concept.dev uses two name servers for its delegation: bob.ns.cloudflare.com and oaklyn.ns.cloudflare.com.

concept.dev shares its name server setup with other domains, including s15m.nl, cnzx.top, djpaneel.com and two others.

At least some of concept.dev's name servers are shared with other domains, for example davb.me, lcg.com.tw, krab-5.cc and two more.

These name servers tend to be used in conjunction with the name servers nola.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname bob.ns.cloudflare.com directs to 108.162.193.104, 172.64.33.104 and 173.245.59.104 along with 3 other IP addresses.

Hostname oaklyn.ns.cloudflare.com directs to 108.162.194.90, 162.159.38.90 and 172.64.34.90 along with 3 other IP addresses.

Mail Servers

concept.dev has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

concept.dev shares mail servers — at least in part — with other domains, including dynamicforexsolutions.com, uniessacorporativa.com.br, ns500765.ns500699.ns500693.ns500693.ns500699.ns500588.ns500699.ns500588.ns500612.ns500632.ns500632.ns500632.dtrkdll.com and two others.

These mail servers are frequently used alongside the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and aspmx2.googlemail.com, plus two others.

Host names with two IP numbers:

aspmx.l.google.com directs traffic to 142.251.163.26 and 2607:f8b0:4004:c27::1a.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.