`kerkhoff-group.com`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::258^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0258.elastic-ssl.ui-r.com`
A	217.160.0.116^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns1022.ui-dns.de` ⭐
		A	2001:8d8:fe:53:0:d9a0:5016:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.de`
		A	217.160.80.22^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.de`
NS	`ns1022.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5116:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.biz`
		A	217.160.81.22^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.biz`
NS	`ns1022.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5216:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.com`
		A	217.160.82.22^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.com`
NS	`ns1022.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5316:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.org`
		A	217.160.83.22^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1022.ui-dns.org`
MX	`kerkhoffgroup-com02b.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca0b::^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo3p265cu00301.inbound.protection.outlook.com`
		A	2a01:111:f403:ca0b::2^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-lo0p265cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca1a::1^{🇬🇧 Microsoft2a01:111:f000::/36}
			PTR	`mail-cwxp265cu00601.inbound.protection.outlook.com`
		A	52.101.89.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo2p265cu02300.inbound.protection.outlook.com`
		A	52.101.89.1^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo0p265cu00201.inbound.protection.outlook.com`
		A	52.101.89.2^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-lo3p265cu00302.inbound.protection.outlook.com`
		A	52.101.99.0^{🇬🇧 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cwxp265cu00600.inbound.protection.outlook.com`
TXT	`apple-domain-verification=HG8Wm88rKuCT218G`
TXT	`OjuCz1h8upJYOEdPRgh3d5UmRh6RGbI/sDFT/g3xdAdeVkJdQ7QZwoNGskSP3gotQsQ7DL6lxOd3z...`
TXT	`MS=ms91760482`
TXT	`v=spf1 redirect=_s197iy2dh.sdmarc.net`
SOA	`ns1022.ui-dns.de`hostmaster@1und1.de 2016-11-04 #76

`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=1778837671

Previously MX for

mx0.kerkhoff-group.com

Subdomains

mx0.kerkhoff-group.com

Same first word

kerkhoff-group.com

DNS History

15 records (7 active, 8 former)

●NSns1022.ui-dns.biz2018-07-21 → 2026-05-15 · 3 obs

○ 2017-01-29 13:07:26
● 2018-07-21 18:46:50
● 2026-05-15 09:35:26

●NSns1022.ui-dns.com2018-07-21 → 2026-05-15 · 3 obs

○ 2017-01-29 13:07:26
● 2018-07-21 18:46:50
● 2026-05-15 09:35:26

●NSns1022.ui-dns.de2018-07-21 → 2026-05-15 · 3 obs

○ 2017-01-29 13:07:26
● 2018-07-21 18:46:50
● 2026-05-15 09:35:26

●NSns1022.ui-dns.org2018-07-21 → 2026-05-15 · 3 obs

○ 2017-01-29 13:07:26
● 2018-07-21 18:46:50
● 2026-05-15 09:35:26

○NSns65.1und1.de2015-07-15 → 2017-01-29 · 4 obs

● 2015-07-15 22:37:30
● 2017-01-29 13:07:26
○ 2018-07-21 18:46:50
○ 2026-05-15 09:35:26

○NSns66.1und1.de2015-07-15 → 2017-01-29 · 4 obs

● 2015-07-15 22:37:30
● 2017-01-29 13:07:26
○ 2018-07-21 18:46:50
○ 2026-05-15 09:35:26

●MXkerkhoffgroup-com02b.mail.protection.outlook.com2026-03-23 → 2026-05-15 · 3 obs

○ 2018-07-21 18:46:50
● 2026-03-23 14:10:42
● 2026-05-15 09:35:26

○MXkerkhoffgroup-com02b.mail.protection.outlook.de2018-07-21 → 2018-07-21 · 4 obs

○ 2017-01-29 13:07:26
● 2018-07-21 18:46:50
○ 2026-03-23 14:10:42
○ 2026-05-15 09:35:26

○MXmx0.kerkhoff-group.com2015-07-15 → 2017-01-29 · 4 obs

● 2015-07-15 22:37:30
● 2017-01-29 13:07:26
○ 2018-07-21 18:46:50
○ 2026-05-15 09:35:26

○MXmx00.kundenserver.de2015-07-15 → 2018-07-21 · 4 obs

● 2015-07-15 22:37:30
● 2018-07-21 18:46:50
○ 2026-03-23 14:10:42
○ 2026-05-15 09:35:26

○MXmx01.kundenserver.de2015-07-15 → 2018-07-21 · 4 obs

● 2015-07-15 22:37:30
● 2018-07-21 18:46:50
○ 2026-03-23 14:10:42
○ 2026-05-15 09:35:26

●A2001:8d8:100f:f000::2582026-03-23 → 2026-05-15 · 3 obs

○ 2018-07-21 18:46:50
● 2026-03-23 14:10:42
● 2026-05-15 09:35:26

○A2001:8d8:8f3:2400::2f:7e292016-02-06 → 2018-07-21 · 5 obs

○ 2015-07-15 22:37:30
● 2016-02-06 02:31:40
● 2018-07-21 18:46:50
○ 2026-03-23 14:10:42
○ 2026-05-15 09:35:26

●A217.160.0.1162026-03-23 → 2026-05-15 · 3 obs

○ 2018-07-21 18:46:50
● 2026-03-23 14:10:42
● 2026-05-15 09:35:26

○A87.106.92.632015-07-15 → 2018-07-21 · 4 obs

● 2015-07-15 22:37:30
● 2018-07-21 18:46:50
○ 2026-03-23 14:10:42
○ 2026-05-15 09:35:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
kerkhoff-group.com	ns1022.ui-dns.de, ns1022.ui-dns.biz, ns1022.ui-dns.org, ns1022.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.81.22

NS records: ns1022.ui-dns.de, ns1022.ui-dns.biz, ns1022.ui-dns.org, ns1022.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kerkhoff-group.com (unsigned zone)

⏱️ Timing

Total: 569ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.116`
AAAA	1	`2001:8d8:100f:f000::258`
NS	4	`ns1022.ui-dns.org, ns1022.ui-dns.de...`
MX	1	`kerkhoffgroup-com02b.mail.protection.out`
TXT	4	`v=spf1 redirect=_s197iy2dh.sdmarc.net, OjuCz1h8upJYOEdPRgh3d5UmRh6RGbI/sDFT/g3x...`
SOA	1	`ns1022.ui-dns.de hostmaster.1und1.de`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1022.ui-dns.com, ns1022.ui-dns.com)

Analysis

Hierarchy

The parent of mx0.kerkhoff-group.com is kerkhoff-group.com.

IP Addresses

kerkhoff-group.com points to two IP numbers: 2001:8d8:100f:f000::258 and 217.160.0.116.

Other host names such as steuerberatung-bruder.de, zetacon.info, digimacs.com, barganero.com and impapol.com share IPs with kerkhoff-group.com.

Name Servers

kerkhoff-group.com is delegated to four name servers: ns1022.ui-dns.biz, ns1022.ui-dns.com, ns1022.ui-dns.de and ns1022.ui-dns.org.

kerkhoff-group.com at least partially shares name servers with other domains, for instance pnl-france.com, wellonia.de, dein.pub, proposal-writing.com and neuli.de.

These name servers are commonly used with ns1104.ui-dns.com, ns1047.ui-dns.org, ns1083.ui-dns.biz, ns1043.ui-dns.de, ns1050.ui-dns.de and ns1049.ui-dns.org.

Host names with two IP numbers: ns1022.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5116:100 and 217.160.81.22; ns1022.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5216:100 and 217.160.82.22; ns1022.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:5016:100 and 217.160.80.22; ns1022.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5316:100 and 217.160.83.22.

Mail Servers

kerkhoff-group.com is handled by a single mail server, kerkhoffgroup-com02b.mail.protection.outlook.com.

Host name kerkhoffgroup-com02b.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca0b::, 2a01:111:f403:ca0b::1, 2a01:111:f403:ca0b::2, 2a01:111:f403:ca1a::1, 52.101.89.0, 52.101.89.1, 52.101.89.2 and 52.101.99.0.

kerkhoff-group.com - robtex.com