🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`concentric.dev`

DNSSEC	⚠️ Not signed
NS	`kai.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bbc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kai.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kai.ns.cloudflare.com`
		A	108.162.193.188^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	172.64.33.188^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
		A	173.245.59.188^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kai.ns.cloudflare.com`
NS	`vera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c093^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2093^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vera.ns.cloudflare.com`
		A	108.162.192.147^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	172.64.32.147^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	173.245.58.147^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=7a56b5e021f212b0e2e2564d825913104c1abd78`
TXT	`v=spf1 include:_spf.protonmail.ch mx ~all`
SOA	`kai.ns.cloudflare.com`dns@cloudflare.com serial=2414692012

`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

concentric.com.au

concentric.life

concentric.international

concentric.dk

concentric.watch

concentric.it

concentric.global

concentric.ai

concentric.app

concentric.diy

concentric.services

concentric.store

concentric.nz

concentric.energy

concentric.group

concentric.de

concentric.network

concentric.je

concentric.works

concentric.cx

concentric.ph

concentric.space

concentric.care

concentric.management

concentric.kiwi

concentric.eu

concentric.ventures

concentric.coach

concentric.design

concentric.co.nz

concentric.cn

concentric.live

concentric.ch

concentric.xyz

concentric.ro

concentric.se

concentric.co.uk

concentric.social

concentric.ca

concentric.co.jp

concentric.net

concentric.info

concentric.world

concentric.expert

concentric.studio

concentric.legal

concentric.org

concentric.health

concentric.vc

concentric.fr

concentric.io

concentric.com

concentric.in

concentric.br.com

concentric.dev

concentric.nl

concentric.us

concentric.builders

concentric.si

concentric.training

concentric.pages.dev

concentric.au

concentric.bot

concentric.vn

concentric.site

concentric.agency

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Next names

DNS History

4 records (4 active, 0 former)

●NSkai.ns.cloudflare.com2026-09-12 → 2026-09-17 · 2 obs

● 2026-09-12 02:08:30
● 2026-09-17 22:16:08

●NSvera.ns.cloudflare.com2026-09-12 → 2026-09-17 · 2 obs

● 2026-09-12 02:08:30
● 2026-09-17 22:16:08

●MXmail.protonmail.ch2026-09-12 → 2026-09-17 · 2 obs

● 2026-09-12 02:08:30
● 2026-09-17 22:16:08

●MXmailsec.protonmail.ch2026-09-12 → 2026-09-17 · 2 obs

● 2026-09-12 02:08:30
● 2026-09-17 22:16:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	10 records
concentric.dev	kai.ns.cloudflare.com, vera.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.147

NS records: kai.ns.cloudflare.com, vera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concentric.dev (unsigned zone)

⏱️ Timing

Total: 786ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`kai.ns.cloudflare.com, vera.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=7a56b5e021f212b0, v=spf1 include:_spf.protonmail.ch mx ~al`
SOA	1	`kai.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Name Servers

concentric.dev uses two name servers for its delegation: kai.ns.cloudflare.com and vera.ns.cloudflare.com.

The name server configuration of concentric.dev is shared with other domains, for instance protecting-the-earth.pages.dev, pendingmedia.com, kusurinomorita.com and two others.

There is at least partial name server overlap between concentric.dev and other domains — hermag.hu, cherh585.workers.dev, syuaja.pages.dev and two more among them.

These name servers frequently co-occur with the name servers hera.ns.cloudflare.com and joan.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname kai.ns.cloudflare.com directs to 108.162.193.188, 172.64.33.188 and 173.245.59.188 along with 3 other IP addresses.

Hostname vera.ns.cloudflare.com directs to 108.162.192.147, 172.64.32.147 and 173.245.58.147 along with 3 other IP addresses.

Mail Servers

concentric.dev uses two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

The mail server setup of concentric.dev matches that of other domains such as impactassessment.app, gatorgraphica.com, stonksbots.com and two others.

At least some of the mail servers used by concentric.dev are shared with other domains: jurassick.fr, therapywithrosemary.com, leopaiva.com and two others among them.

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129. Both hosts resolve to three IP numbers.

concentric.dev - robtex.com

concentric.dev

dev

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Name Servers

Mail Servers

`concentric.dev`

`dev`