bert.group - dns.ninja

`bert.group`

DNSSEC	⚠️ Not signed
NS	`ns1.arvato-systems.de` ⭐
		A	2a01:4a8:3222:2222::10^{🇩🇪 arvato-systems-AS2a01:4a8::/32 Arvato-Systems-GmbH-IPv6-Route}
			PTR	`ns1.arvato-systems.de`
		A	84.17.168.69^{🇩🇪 arvato-systems-AS84.17.160.0/20 arvato-systems-NET arvato systems GmbH Reinhard-Mohn-Stra�e 200 33333 Guetersloh Germany}
			PTR	`ns1.arvato-systems.de`
NS	`dns009.arvato-systems.de`
		A	193.189.249.157^{🇩🇪 TDDE-ASN1193.189.224.0/19 Telefonica Germany GmbH & Co. OHG}
			PTR	`dns009.arvato-systems.de`
NS	`dns017.arvato-systems.de`
		A	84.17.190.100^{🇩🇪 arvato-systems-AS84.17.176.0/20 arvato-systems-NET arvato systems GmbH Reinhard-Mohn-Stra�e 200 33333 Guetersloh Germany}
			PTR	`dns017.arvato-systems.de`
NS	`ns2.arvato-systems.de`
		A	2a01:4a8:2222:2222::11^{🇩🇪 arvato-systems-AS2a01:4a8::/32 Arvato-Systems-GmbH-IPv6-Route}
			PTR	`ns2.arvato-systems.de`
		A	109.235.143.148^{🇩🇪 arvato-systems-AS109.235.140.0/22 arvato-systems-NET arvato systems GmbH An der Autobahn 200 33333 Guetersloh Germany}
			PTR	`ns2.arvato-systems.de`
MX	`bert-group.mail.protection.outlook.com` ⭐
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.68.18^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db4pr02cu00302.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.16^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as2pr05cu00100.inbound.protection.outlook.com`
TXT	`thp4yjxkfs5zj24zzrrtvfg8yvz4dw35`
TXT	`wmgwz5jvpn04m3x12cy39dtkf0n6r775`
TXT	`yy6z4m1wlm2xg2yrtxxf8l6hxl4jv4j6`
TXT	`23fq6cshg0kncfh2r1f886xrtrhsm0ts`
TXT	`67xr6bj4283k70jywv34q1mx08mfw4f0`
TXT	`m5gv76bzzk710fbmy2lvjpm4833rtcmb`
TXT	`20772x5fkv07bn5zqddqr3mghfnkvnw6`
TXT	`4v3hyf6h1w91c3f5rhv8c61yjn1ckvpx`
SOA	`ns1.arvato-systems.de`hostmaster@bnic.bertelsmann.de 2026-06-23 #0

`group`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.group` ⭐
	NS	`v0n1.nic.group`
	NS	`v0n2.nic.group`
	NS	`v0n3.nic.group`
	NS	`v2n0.nic.group`
	NS	`v2n1.nic.group`
	SOA	`v0n0.nic.group`hostmaster@donuts.email serial=1786771818

Subdomains

stsbroker.bert.group

Same first word

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rteb.com

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tber.hu

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terb.net

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rebt.org

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bret.ch

DNS History

7 records (5 active, 2 former)

●NSdns009.arvato-systems.de2016-12-10 → 2026-08-15 · 2 obs

● 2016-12-10 18:00:36
● 2026-08-15 05:40:00

●NSdns017.arvato-systems.de2016-12-10 → 2026-08-15 · 2 obs

● 2016-12-10 18:00:36
● 2026-08-15 05:40:00

●NSns1.arvato-systems.de2016-12-10 → 2026-08-15 · 6 obs

● 2016-12-10 18:00:36
● 2017-01-24 08:57:22
○ 2017-10-08 07:21:56
○ 2017-10-21 04:25:42
● 2018-09-16 12:02:26
● 2026-08-15 05:40:00

●NSns2.arvato-systems.de2016-12-10 → 2026-08-15 · 7 obs

● 2016-12-10 18:00:36
○ 2017-01-24 08:57:22
● 2017-10-08 07:21:56
● 2017-10-21 04:25:42
○ 2018-09-16 12:02:26
● 2018-11-08 12:21:44
● 2026-08-15 05:40:00

●MXbert-group.mail.protection.outlook.com2026-02-25 → 2026-08-15 · 3 obs

○ 2018-11-08 12:21:44
● 2026-02-25 18:15:26
● 2026-08-15 05:40:00

○MXmx1.mail.arvato-systems.de2016-12-10 → 2018-11-08 · 4 obs

● 2016-12-10 18:00:36
● 2018-11-08 12:21:44
○ 2026-02-25 18:15:26
○ 2026-08-15 05:40:00

○MXmx2.mail.arvato-systems.de2016-12-10 → 2018-11-08 · 4 obs

● 2016-12-10 18:00:36
● 2018-11-08 12:21:44
○ 2026-02-25 18:15:26
○ 2026-08-15 05:40:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
group	v2n1.nic.group, v2n0.nic.group, v0n0.nic.group, v0n2.nic.group...	12 records
bert.group	dns017.arvato-systems.de, dns009.arvato-systems.de, ns1.arvato-systems.de, ns2.arvato-systems.de	-

✅ Authoritative Response

Server:109.235.143.148

NS records: dns017.arvato-systems.de, dns009.arvato-systems.de, ns1.arvato-systems.de, ns2.arvato-systems.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bert.group (unsigned zone)

⏱️ Timing

Total: 788ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`dns009.arvato-systems.de, dns017.arvato-systems.de...`
MX	1	`bert-group.mail.protection.outlook.com (`
TXT	8	`23fq6cshg0kncfh2r1f886xrtrhsm0ts, thp4yjxkfs5zj24zzrrtvfg8yvz4dw35...`
SOA	1	`ns1.arvato-systems.de hostmaster.bnic.be`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.group, v0n1.nic.group, v0n2.nic.group...)

Analysis

Hierarchy

stsbroker.bert.group is a subdomain of bert.group.

Name Servers

Four name servers handle the delegation for bert.group: dns009.arvato-systems.de, dns017.arvato-systems.de, ns1.arvato-systems.de and ns2.arvato-systems.de.

The name servers of bert.group overlap at least partially with those of other domains — among them sme-starspreproc.com, arvato-infoscore.de, mf-group.at and two more.

Host names pointing to two IP addresses:

ns1.arvato-systems.de has two IP addresses: 84.17.168.69 and 2a01:4a8:3222:2222::10.

ns2.arvato-systems.de has two IP addresses: 109.235.143.148 and 2a01:4a8:2222:2222::11.

Host names resolving to a single IP address:

dns009.arvato-systems.de directs to 193.189.249.157.

dns017.arvato-systems.de directs to 84.17.190.100.

Mail Servers

bert.group uses one mail server — bert-group.mail.protection.outlook.com.

bert-group.mail.protection.outlook.com points to four IP addresses: 52.101.68.10, 52.101.68.18, 52.101.68.36 and 52.101.73.16.