`zaehr-engineering.com`

DNSSEC	⚠️ Not signed
A	212.46.121.6^{🇩🇪 NCORE-AS212.46.96.0/19 HKN GmbH Hochstadenstr. 5 D-47829 Krefeld Germany}
NS	`ns1097.ui-dns.de` ⭐
		A	2607:f1c0:fe:53:185:132:32:97^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1097.ui-dns.de`
		A	217.160.80.97^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.de`
NS	`ns1097.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5161:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.biz`
		A	217.160.81.97^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.biz`
NS	`ns1097.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5261:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.com`
		A	217.160.82.97^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.com`
NS	`ns1097.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5361:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.org`
		A	217.160.83.97^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1097.ui-dns.org`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	`ns1097.ui-dns.de`hostmaster@kundenserver.de 2015-10-21 #4

`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=1774744977

Same first word

zaehr-engineering.com

DNS History

13 records (7 active, 6 former)

○NSns-de.1and1-dns.biz2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:10:36
○ 2017-12-29 14:16:30
○ 2026-03-29 01:06:12

○NSns-de.1and1-dns.com2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:10:36
○ 2017-12-29 14:16:30
○ 2026-03-29 01:06:12

○NSns-de.1and1-dns.de2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:10:36
○ 2017-12-29 14:16:30
○ 2026-03-29 01:06:12

○NSns-de.1and1-dns.org2016-12-18 → 2016-12-18 · 3 obs

● 2016-12-18 18:10:36
○ 2017-12-29 14:16:30
○ 2026-03-29 01:06:12

●NSns1097.ui-dns.biz2017-12-29 → 2026-03-29 · 3 obs

○ 2016-12-18 18:10:36
● 2017-12-29 14:16:30
● 2026-03-29 01:06:12

●NSns1097.ui-dns.com2017-12-29 → 2026-03-29 · 3 obs

○ 2016-12-18 18:10:36
● 2017-12-29 14:16:30
● 2026-03-29 01:06:12

●NSns1097.ui-dns.de2017-12-29 → 2026-03-29 · 3 obs

○ 2016-12-18 18:10:36
● 2017-12-29 14:16:30
● 2026-03-29 01:06:12

●NSns1097.ui-dns.org2017-12-29 → 2026-03-29 · 3 obs

○ 2016-12-18 18:10:36
● 2017-12-29 14:16:30
● 2026-03-29 01:06:12

●MXmx00.ionos.de2026-02-22 → 2026-03-29 · 3 obs

○ 2017-12-29 14:16:30
● 2026-02-22 20:05:18
● 2026-03-29 01:06:12

○MXmx00.kundenserver.de2016-12-18 → 2017-12-29 · 4 obs

● 2016-12-18 18:10:36
● 2017-12-29 14:16:30
○ 2026-02-22 20:05:18
○ 2026-03-29 01:06:12

●MXmx01.ionos.de2026-02-22 → 2026-03-29 · 3 obs

○ 2017-12-29 14:16:30
● 2026-02-22 20:05:18
● 2026-03-29 01:06:12

○MXmx01.kundenserver.de2016-12-18 → 2017-12-29 · 4 obs

● 2016-12-18 18:10:36
● 2017-12-29 14:16:30
○ 2026-02-22 20:05:18
○ 2026-03-29 01:06:12

●A212.46.121.62016-12-18 → 2026-03-29 · 2 obs

● 2016-12-18 18:10:36
● 2026-03-29 01:06:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net...	-
zaehr-engineering.com	ns1097.ui-dns.de, ns1097.ui-dns.biz, ns1097.ui-dns.org, ns1097.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.80.97

NS records: ns1097.ui-dns.de, ns1097.ui-dns.biz, ns1097.ui-dns.org, ns1097.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zaehr-engineering.com (unsigned zone)

⏱️ Timing

Total: 624ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.46.121.6`
NS	4	`ns1097.ui-dns.biz, ns1097.ui-dns.org...`
MX	2	`mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
SOA	1	`ns1097.ui-dns.de hostmaster.kundenserver`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1097.ui-dns.com, ns1097.ui-dns.com)

Analysis

IP Addresses

zaehr-engineering.com points to a single IP: 212.46.121.6.

Name Servers

zaehr-engineering.com's delegation is handled by four name servers: ns1097.ui-dns.biz, ns1097.ui-dns.com, ns1097.ui-dns.de and ns1097.ui-dns.org.

zaehr-engineering.com partially shares name servers with other domains; examples include nprojx.com, ssis.com, echobloom.org, eu-carimport.de and eischnittchen.de.

These name servers are often used with ns1053.ui-dns.de, ns1084.ui-dns.biz, ns1024.ui-dns.com, ns1098.ui-dns.org, ns1025.ui-dns.de, ns1121.ui-dns.org, ns1080.ui-dns.com and ns1025.ui-dns.com.

Host names with two IPs:

ns1097.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5161:100 and 217.160.81.97

ns1097.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:5261:100 and 217.160.82.97

ns1097.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:97 and 217.160.80.97

ns1097.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5361:100 and 217.160.83.97

Mail Servers

zaehr-engineering.com is handled by two mail servers: mx00.ionos.de and mx01.ionos.de.

zaehr-engineering.com has the same mail server setup as other domains, including ahrens.co, madde.de, copythek-mainz.de, pobles.de and fiberconcrete.de.

Some mail servers are shared between zaehr-engineering.com and other domains, for example gravitationstheorien.org.

Host names with one IP number: The host name mx00.ionos.de points to 212.227.15.41 and the host name mx01.ionos.de points to 217.72.192.67.

zaehr-engineering.com - robtex.com