`concern.net`

DNSSEC	⚠️ Not signed
A	2606:4700:10::6814:241a^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:10::ac42:9658^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.20.36.26^{Cloudflare104.20.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.150.88^{🇺🇸 Cloudflare172.66.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`donna.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a97^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c097^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2097^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donna.ns.cloudflare.com`
		A	108.162.192.151^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	172.64.32.151^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
		A	173.245.58.151^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donna.ns.cloudflare.com`
NS	`norman.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bd9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norman.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1d9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`norman.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21d9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`norman.ns.cloudflare.com`
		A	108.162.193.217^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norman.ns.cloudflare.com`
		A	172.64.33.217^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norman.ns.cloudflare.com`
		A	173.245.59.217^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norman.ns.cloudflare.com`
MX	`concern-net.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca09::4^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr04cu00504.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	52.101.68.0^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.8^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr04cu00500.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
TXT	`access-domain-verification=b3741cb0bad58f33174e5a0378ca3e7e8ab168d1611027610b...`
TXT	`adobe-sign-verification=957e5b6787b9bfa88dae896a7f274b70`
TXT	`asv=fc022695e8e77603259727327a34ccb4`
TXT	`facebook-domain-verification=zyeyx6dlvv9utpz5jjqhgrvy8lshcf`
TXT	`google-site-verification=BrSCNFIIVsXgCjIGekzi0fVD1hwYhMn0UDwtFXzs-gU`
TXT	`loaderio=6c66a5889080248d62c663bc0f67ca2a`
TXT	`v=spf1 ip4:115.68.64.54 include:spf.protection.outlook.com include:sendgrid.n...`
HTTPS	HTTP/2 ✓ hints match
		IPv4	104.20.36.26, 172.66.150.88
		IPv6	2606:4700:10::6814:241a, 2606:4700:10::ac42:9658
SOA	`donna.ns.cloudflare.com`dns@cloudflare.com serial=2396375224

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291465

rank #71453 globally
rank #2321 in the tld
WOT: SAFE (74/100)
📈 Tranco rank: #207,454

Up

jobs.concern.net

blog.concern.net

www.concern.net

Same first word

concern.com.sg

concern.com.cn

concern.co.jp

concern.ie

concern.net

concern.se

concern.us

concern.sakura.ne.jp

concern.or.kr

concern.com

concern.ca

concern.in

concern.biz

concern.eu

concern.be

concern.org.uk

concern.nl

concern.dk

concern.de

concern.cn

concern.com.tw

concern.com.ua

concern.info

concern.demon.nl

Similar names

renccon.com

norccen.com

DNS History

13 records (7 active, 6 former)

●NSdonna.ns.cloudflare.com2026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

●NSnorman.ns.cloudflare.com2026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

○NSns1.blacknight.com2015-08-12 → 2017-10-17 · 4 obs

● 2015-08-12 20:48:44
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

○NSns2.blacknight.com2015-08-12 → 2017-10-17 · 4 obs

● 2015-08-12 20:48:44
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

○NSns3.blacknight.com2016-10-21 → 2017-10-17 · 5 obs

○ 2015-08-12 20:48:44
● 2016-10-21 13:39:56
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

○NSns4.blacknight.com2016-10-21 → 2017-10-17 · 5 obs

○ 2015-08-12 20:48:44
● 2016-10-21 13:39:56
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

●MXconcern-net.mail.protection.outlook.com2015-08-12 → 2026-02-27 · 2 obs

● 2015-08-12 20:48:44
● 2026-02-27 05:19:20

○MXmail.global.frontbridge.com2015-08-12 → 2017-10-17 · 4 obs

● 2015-08-12 20:48:44
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

●A104.20.36.262026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

●A172.66.150.882026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

●A2606:4700:10::6814:241a2026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

●A2606:4700:10::ac42:96582026-02-15 → 2026-02-27 · 3 obs

○ 2017-10-17 19:41:00
● 2026-02-15 05:12:42
● 2026-02-27 05:19:20

○A50.57.205.572015-08-12 → 2017-10-17 · 4 obs

● 2015-08-12 20:48:44
● 2017-10-17 19:41:00
○ 2026-02-15 05:12:42
○ 2026-02-27 05:19:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
concern.net	donna.ns.cloudflare.com, norman.ns.cloudflare.com	-

✅ Authoritative Response

Server: 108.162.192.151

NS records: donna.ns.cloudflare.com, norman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concern.net (unsigned zone)

⏱️ Timing

Total: 503ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.150.88, 104.20.36.26`
AAAA	2	`2606:4700:10::ac42:9658, 2606:4700:10::6814:241a`
NS	2	`donna.ns.cloudflare.com, norman.ns.cloudflare.com`
MX	1	`concern-net.mail.protection.outlook.com`
TXT	7	`access-domain-verification=b3741cb0bad58, adobe-sign-verification=957e5b6787b9bfa8...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`donna.ns.cloudflare.com dns.cloudflare.c`

AI analysis

concern.net is a parent of jobs.concern.net, blog.concern.net and www.concern.net.

concern.net maps to four IP numbers: 2606:4700:10::6814:241a, 2606:4700:10::ac42:9658, 104.20.36.26 and 172.66.150.88.

Other host names, for instance www.caletaholdings.com, bbka.org.uk, www.concern.net, dobaklife21.com and www.sc.com.my share IP numbers with concern.net.

Two name servers donna.ns.cloudflare.com and norman.ns.cloudflare.com are delegated to concern.net.

concern.net uses the same name server configuration as other domains, such as solvtify.com, bydudu.com.br, invictusbodyjewelry.com, inox-us.com and mayk.eu.

concern.net at least partially shares name servers with other domains such as iffesmatec.com, willowbrookpo.net, redtonik.com, 4kings789.me and nickbuilds.net.

These name servers are commonly used with moura.ns.cloudflare.com, jose.ns.cloudflare.com, cloe.ns.cloudflare.com and pablo.ns.cloudflare.com.

Host names with six IP numbers: Host name donna.ns.cloudflare.com points to 2606:4700:50::adf5:3a97, 2803:f800:50::6ca2:c097, 2a06:98c1:50::ac40:2097, 108.162.192.151, 172.64.32.151 and 173.245.58.151; host name norman.ns.cloudflare.com points to 2606:4700:58::adf5:3bd9, 2803:f800:50::6ca2:c1d9, 2a06:98c1:50::ac40:21d9, 108.162.193.217, 172.64.33.217 and 173.245.59.217.

concern.net is handled by a single mail server, concern-net.mail.protection.outlook.com.

concern-net.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::7, 2a01:111:f403:ca09::b, 2a01:111:f403:ca09::d, 52.101.68.0, 52.101.68.29, 52.101.73.8 and 52.101.73.15.

concern.net - robtex.com

concern.net

net

Up

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

AI analysis

`concern.net`

`net`