`bierensgroup.com`

DNSSEC	🔒 Signed (DS record present)
A	2a0b:3100:20::63^{🇳🇱 NL-BIT2a0b:3100::/40 Rootnet Managed Servers BIT-2}
		PTR	`glossy-beetle.sys.rootnet.io`
A	185.173.20.150^{🇳🇱 NL-BIT185.173.20.0/22}
NS	`nsauth.myrootnet.com` ⭐
		A	2a0b:3100:200::5^{🇳🇱 AS229272000::/3}
			PTR	`nsauth.myrootnet.com`
		A	81.85.60.5
			PTR	`nsauth.myrootnet.com`
NS	`nsauth.myrootnet.nl`
		A	2a0b:3100:53::10^{🇳🇱 NL-BIT2a0b:3100::/40 Rootnet Managed Servers BIT-2}
		A	185.173.20.5^{🇳🇱 NL-BIT185.173.20.0/22}
			PTR	`nsauth.myrootnet.nl`
MX	`bierensgroup-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::4^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::1^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr07cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::b^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00103.inbound.protection.outlook.com`
		A	52.101.68.3^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db7pr03cu00403.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.6^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am6pr04cu00306.inbound.protection.outlook.com`
TXT	`amazonses:FwBQuZB8fUScXBWcm0EfwBSIBRSCU4u5xjIkZWEafEI=`
TXT	`v=NTA7516-1;startdate=2023-08;enddate=2033-08;provider=secumailer`
TXT	`zBe6/RTeK8uap3H6HjK14zjNrvCTUjVxfpRqIbJQltH3q0giT3i7DOx61FYvDKDTL41kqQeqKmNRL...`
TXT	`ZA=RYJLFIphkbaPBSxFZjtJW27AaIXZFFzoh64UfHVvMFE=`
TXT	`q52FrGmmCntdm5PaYv+yyYKXJ0bUwkbWw679SxKIzZ0RzvuQYjmj/e+Rt+sL+CYBvlIFu1r9XJKFF...`
TXT	`v=spf1 include:spf.protection.outlook.com include:mailfilter.myrootnet.nl inc...`
SOA	`nsauth.myrootnet.com`root@rootnet.nl 2026-03-19 #1

`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

rank #491770 globally
rank #220137 in the tld

Subdomains

mail.bierensgroup.com

mail2.bierensgroup.com

Same first word

bierensgroup.us

bierensgroup.com

bierensgroup.de

bierensgroup.it

bierensgroup.es

bierensgroup.fr

DNS History

19 records (5 active, 14 former)

○NSjack.ns.cloudflare.com2016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

○NSlady.ns.cloudflare.com2016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

○NSns1.mediaversanameserver1.nl2015-05-24 → 2015-05-24 · 3 obs

● 2015-05-24 07:16:30
○ 2015-11-02 18:16:00
○ 2026-03-24 10:53:38

○NSns1.myrootnet.nl2015-11-02 → 2016-02-02 · 5 obs

○ 2015-05-24 07:16:30
● 2015-11-02 18:16:00
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

○NSns2.mediaversanameserver1.nl2015-05-24 → 2015-05-24 · 3 obs

● 2015-05-24 07:16:30
○ 2015-11-02 18:16:00
○ 2026-03-24 10:53:38

○NSns2.myrootnet.nl2015-11-02 → 2016-02-02 · 5 obs

○ 2015-05-24 07:16:30
● 2015-11-02 18:16:00
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

○NSns3.myrootnet.nl2015-11-02 → 2016-02-02 · 5 obs

○ 2015-05-24 07:16:30
● 2015-11-02 18:16:00
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

●NSnsauth.myrootnet.com2026-03-09 → 2026-03-24 · 3 obs

○ 2016-06-23 03:31:06
● 2026-03-09 12:43:34
● 2026-03-24 10:53:38

●NSnsauth.myrootnet.nl2026-03-09 → 2026-03-24 · 3 obs

○ 2016-06-23 03:31:06
● 2026-03-09 12:43:34
● 2026-03-24 10:53:38

○MXaspam1.thc.nl2015-05-24 → 2016-02-02 · 4 obs

● 2015-05-24 07:16:30
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

○MXaspam2.thc.nl2015-05-24 → 2016-02-02 · 4 obs

● 2015-05-24 07:16:30
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

●MXbierensgroup-com.mail.protection.outlook.com2026-03-09 → 2026-03-24 · 3 obs

○ 2016-06-23 03:31:06
● 2026-03-09 12:43:34
● 2026-03-24 10:53:38

○MXmailfilter01.myrootnet.nl2016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

○MXmailfilter02.myrootnet.nl2016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

○A104.25.56.72016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

○A104.25.57.72016-06-23 → 2016-06-23 · 4 obs

○ 2016-02-02 07:28:54
● 2016-06-23 03:31:06
○ 2026-03-09 12:43:34
○ 2026-03-24 10:53:38

●A185.173.20.1502026-03-09 → 2026-03-24 · 3 obs

○ 2016-06-23 03:31:06
● 2026-03-09 12:43:34
● 2026-03-24 10:53:38

○A185.31.244.2242015-05-24 → 2016-02-02 · 4 obs

● 2015-05-24 07:16:30
● 2016-02-02 07:28:54
○ 2016-06-23 03:31:06
○ 2026-03-24 10:53:38

●A2a0b:3100:20::632026-03-09 → 2026-03-24 · 3 obs

○ 2016-06-23 03:31:06
● 2026-03-09 12:43:34
● 2026-03-24 10:53:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bierensgroup.com	nsauth.myrootnet.nl, nsauth.myrootnet.com	2 records

✅ Authoritative Response

Server:81.85.60.5

NS records: nsauth.myrootnet.nl, nsauth.myrootnet.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 640ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.173.20.150`
AAAA	1	`2a0b:3100:20::63`
NS	2	`nsauth.myrootnet.nl, nsauth.myrootnet.com`
MX	1	`bierensgroup-com.mail.protection.outlook`
TXT	6	`amazonses:FwBQuZB8fUScXBWcm0EfwBSIBRSCU4, v=NTA7516-1;startdate=2023-08;enddate=20...`
SOA	1	`nsauth.myrootnet.com root.rootnet.nl`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsauth.myrootnet.com, nsauth.myrootnet.com)

Analysis

Hierarchy

bierensgroup.com is a parent of mail.bierensgroup.com and mail2.bierensgroup.com.

IP Addresses

bierensgroup.com resolves to two IP numbers: 2a0b:3100:20::63 and 185.173.20.150.

Other host names, for instance glossy-beetle.sys.rootnet.io, share IP numbers with bierensgroup.com.

Name Servers

bierensgroup.com is delegated to two name servers nsauth.myrootnet.com and nsauth.myrootnet.nl.

bierensgroup.com shares the same name server setup as other domains, for instance pedroshop.nl, bovema.nl, geo-energie.nl, becklogistiek.com and boosting.nl.

bierensgroup.com at least partially shares name servers with other domains, for instance abswoude.nl.

Host names with two IP numbers:

The host name nsauth.myrootnet.com points to 2a0b:3100:200::5 and 81.85.60.5; the host name nsauth.myrootnet.nl points to 2a0b:3100:53::10 and 185.173.20.5.

Mail Servers

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

Host bierensgroup-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::4, 2a01:111:f403:ca09::1, 2a01:111:f403:ca09::5, 2a01:111:f403:ca09::b, 52.101.68.3, 52.101.68.36, 52.101.73.4 and 52.101.73.6.

bierensgroup.com - robtex.com