`concentriccorp.com`

DNSSEC	⚠️ Not signed
A	151.101.194.159^{🇺🇸 Fastly151.101.192.0/22}
NS	`ns85.worldnic.com` ⭐
		A	162.159.26.131^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns86.worldnic.com`
		A	162.159.27.117^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`concentriccorp-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c801::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr02cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:c802::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy4pr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c922::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr05cu00501.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.11.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sa9pr02cu00207.inbound.protection.outlook.com`
		A	52.101.41.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00204.inbound.protection.outlook.com`
		A	52.101.50.1^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00401.inbound.protection.outlook.com`
		A	52.101.50.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr03cu00404.inbound.protection.outlook.com`
TXT	`bqak0c5i39q68nidfo6fjdldut`
TXT	`ftpaq2gokh8h9op409ak5157vh`
TXT	`cisco-ci-domain-verification=3b8efe2b0c33e7f7de20034de14dffafe3acb488c76c2bf9...`
TXT	`v=spf1 ip4:52.129.17.4 include:spf.protection.outlook.com -all`
SOA	`NS85.WORLDNIC.com`namehost@WORLDNIC.com serial=126022313

`com`

	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=1771291435

Subdomains

mail.concentriccorp.com

Same first word

concentriccorp.com

DNS History

8 records (4 active, 4 former)

●NSns85.worldnic.com2015-05-08 → 2026-03-23 · 2 obs

● 2015-05-08 22:09:48
● 2026-03-23 23:47:34

●NSns86.worldnic.com2015-05-08 → 2026-03-23 · 2 obs

● 2015-05-08 22:09:48
● 2026-03-23 23:47:34

●MXconcentriccorp-com.mail.protection.outlook.com2015-10-18 → 2026-03-23 · 3 obs

○ 2015-05-08 22:09:48
● 2015-10-18 04:55:36
● 2026-03-23 23:47:34

○MXowa.concentriccorp.com2015-05-08 → 2015-05-08 · 3 obs

● 2015-05-08 22:09:48
○ 2015-10-18 04:55:36
○ 2026-03-23 23:47:34

●A151.101.194.1592026-02-25 → 2026-03-23 · 3 obs

○ 2020-02-13 16:52:06
● 2026-02-25 12:27:58
● 2026-03-23 23:47:34

○A209.17.116.22015-05-08 → 2015-05-08 · 3 obs

● 2015-05-08 22:09:48
○ 2015-10-18 04:55:36
○ 2026-03-23 23:47:34

○A23.239.29.1392020-02-13 → 2020-02-13 · 4 obs

○ 2017-03-24 02:33:58
● 2020-02-13 16:52:06
○ 2026-02-25 12:27:58
○ 2026-03-23 23:47:34

○A45.79.8.1542015-10-18 → 2017-03-24 · 5 obs

○ 2015-05-08 22:09:48
● 2015-10-18 04:55:36
● 2017-03-24 02:33:58
○ 2020-02-13 16:52:06
○ 2026-03-23 23:47:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, i.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net...	-
concentriccorp.com	ns85.worldnic.com, ns86.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.26.131

NS records: ns85.worldnic.com, ns86.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concentriccorp.com (unsigned zone)

⏱️ Timing

Total: 280ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`151.101.194.159`
NS	2	`ns86.worldnic.com, ns85.worldnic.com`
MX	1	`concentriccorp-com.mail.protection.outlo`
TXT	4	`ftpaq2gokh8h9op409ak5157vh, v=spf1 ip4:52.129.17.4 include:spf.prote...`
SOA	1	`NS85.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns85.worldnic.com, ns86.worldnic.com)

Analysis

Hierarchy

mail.concentriccorp.com is a child of concentriccorp.com.

IP Addresses

concentriccorp.com resolves to one IP number: 151.101.194.159.

Other host names, for instance enertron-inc.com, realestate-princeton.com, websitemojo.net, shadowits.com and wildercreekconservationclub.org share IP numbers with concentriccorp.com.

Name Servers

concentriccorp.com's delegation uses two name servers: ns85.worldnic.com and ns86.worldnic.com.

concentriccorp.com uses the same name server setup as other domains, such as cresline.com, infuzecreditunion.mobi, rgpetersonlaw.com, regencytravel.biz and bathedmonds.com.

Host names with a single IP address: ns85.worldnic.com points to 162.159.26.131; ns86.worldnic.com points to 162.159.27.117.

Mail Servers

A single mail server handles concentriccorp.com, concentriccorp-com.mail.protection.outlook.com.

Host concentriccorp-com.mail.protection.outlook.com points to eight IPs: 2a01:111:f403:c801::, 2a01:111:f403:c802::, 2a01:111:f403:c922::1, 2a01:111:f403:f908::2, 52.101.11.15, 52.101.41.4, 52.101.50.1 and 52.101.50.4.

concentriccorp.com - robtex.com