`zwi-engineering.de`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::200^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com`
A	217.160.0.26^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`gmxde.ui-dns.biz` ⭐
		A	2001:8d8:fe:53::81:239^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`gmxde.ui-dns.biz`
		A	217.160.81.239^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`gmxde.ui-dns.biz`
NS	`gmxde.ui-dns.com`
		A	2607:f1c0:fe:53::34:239^{🇺🇸 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	`gmxde.ui-dns.com`
		A	185.132.34.239^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`gmxde.ui-dns.com`
NS	`gmxde.ui-dns.de`
		A	2001:8d8:fe:53::80:239^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`gmxde.ui-dns.de`
		A	217.160.80.239^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`gmxde.ui-dns.de`
NS	`gmxde.ui-dns.org`
		A	2607:f1c0:fe:53::35:239^{🇺🇸 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	`gmxde.ui-dns.org`
		A	185.132.35.239^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`gmxde.ui-dns.org`
MX	`dhmx02.emig.gmx.net` ⭐
		A	212.227.17.5^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx01.emig.gmx.net`
MX	`dhmx01.emig.gmx.net`⁽¹⁵⁰⁾
		A	212.227.15.9^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.emig.gmx.net`
TXT	`v=spf1 redirect=_spf.gmx.net`
SOA	`gmxde.ui-dns.biz`hostmaster@1und1.com 2017-06-01 #23

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1777218020

Same first word

zwi-engineering.de

DNS History

18 records (8 active, 10 former)

●NSgmxde.ui-dns.biz2026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

●NSgmxde.ui-dns.com2026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

●NSgmxde.ui-dns.de2026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

●NSgmxde.ui-dns.org2026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

○NSns1035.ui-dns.biz2020-02-29 → 2020-02-29 · 4 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
○ 2026-02-14 19:30:16
○ 2026-04-26 15:50:26

○NSns1035.ui-dns.com2020-02-29 → 2020-02-29 · 4 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
○ 2026-02-14 19:30:16
○ 2026-04-26 15:50:26

○NSns1035.ui-dns.de2020-02-29 → 2020-02-29 · 4 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
○ 2026-02-14 19:30:16
○ 2026-04-26 15:50:26

○NSns1035.ui-dns.org2020-02-29 → 2020-02-29 · 4 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
○ 2026-02-14 19:30:16
○ 2026-04-26 15:50:26

○NSns7.schlund.de2015-07-09 → 2017-03-22 · 4 obs

● 2015-07-09 03:48:20
● 2017-03-22 13:35:08
○ 2020-02-29 04:04:44
○ 2026-04-26 15:50:26

○NSns8.schlund.de2015-07-09 → 2017-03-22 · 4 obs

● 2015-07-09 03:48:20
● 2017-03-22 13:35:08
○ 2020-02-29 04:04:44
○ 2026-04-26 15:50:26

●MXdhmx01.emig.gmx.net2020-02-29 → 2026-04-26 · 3 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
● 2026-04-26 15:50:26

●MXdhmx02.emig.gmx.net2020-02-29 → 2026-04-26 · 3 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
● 2026-04-26 15:50:26

○MXmx0.gmx.de2015-07-09 → 2017-03-22 · 4 obs

● 2015-07-09 03:48:20
● 2017-03-22 13:35:08
○ 2020-02-29 04:04:44
○ 2026-04-26 15:50:26

○MXmx0.gmx.net2015-07-09 → 2017-03-22 · 4 obs

● 2015-07-09 03:48:20
● 2017-03-22 13:35:08
○ 2020-02-29 04:04:44
○ 2026-04-26 15:50:26

●A2001:8d8:100f:f000::2002026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

○A217.160.0.1712020-02-29 → 2020-02-29 · 4 obs

○ 2017-03-22 13:35:08
● 2020-02-29 04:04:44
○ 2026-02-14 19:30:16
○ 2026-04-26 15:50:26

●A217.160.0.262026-02-14 → 2026-04-26 · 3 obs

○ 2020-02-29 04:04:44
● 2026-02-14 19:30:16
● 2026-04-26 15:50:26

○A82.165.58.112015-07-09 → 2017-03-22 · 4 obs

● 2015-07-09 03:48:20
● 2017-03-22 13:35:08
○ 2020-02-29 04:04:44
○ 2026-04-26 15:50:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
zwi-engineering.de	gmxde.ui-dns.biz, gmxde.ui-dns.com, gmxde.ui-dns.org, gmxde.ui-dns.de	-

✅ Authoritative Response

Server:217.160.81.239

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zwi-engineering.de (unsigned zone)

⏱️ Timing

Total: 1010ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.26`
AAAA	1	`2001:8d8:100f:f000::200`
NS	4	`gmxde.ui-dns.de, gmxde.ui-dns.com...`
MX	2	`dhmx01.emig.gmx.net (pri: 150), dhmx02.emig.gmx.net (pri: 100)`
TXT	1	`v=spf1 redirect=_spf.gmx.net`
SOA	1	`gmxde.ui-dns.biz hostmaster.1und1.com`

Analysis

IP Addresses

zwi-engineering.de points to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.26.

Other host names, for instance dost-gmbh.com, larknet.de, vdlaan.eu, shirty-birty.com and etdoc.org share IP numbers with zwi-engineering.de.

Name Servers

zwi-engineering.de is delegated to four name servers: gmxde.ui-dns.biz, gmxde.ui-dns.com, gmxde.ui-dns.de and gmxde.ui-dns.org.

zwi-engineering.de at least partially shares its name servers with other domains, for instance trunkhardt.de, lorenzl.net, airmec-aviation-services.de, terasaki.de and heisrath.com.

Host names with two IPs: gmxde.ui-dns.biz points to 2001:8d8:fe:53::81:239 and 217.160.81.239; gmxde.ui-dns.com points to 2607:f1c0:fe:53::34:239 and 185.132.34.239; gmxde.ui-dns.de points to 2001:8d8:fe:53::80:239 and 217.160.80.239; gmxde.ui-dns.org points to 2607:f1c0:fe:53::35:239 and 185.132.35.239.

Mail Servers

Two mail servers dhmx01.emig.gmx.net and dhmx02.emig.gmx.net handle zwi-engineering.de.

zwi-engineering.de uses the same mail server setup as other domains such as ronnefeldt-hamburg.de, theinert.net, gaydo.net, theomax.de and betty-lauterbach.de.

Host names with a single IP:

dhmx01.emig.gmx.net resolves to 212.227.15.9.

dhmx02.emig.gmx.net resolves to 212.227.17.5.

zwi-engineering.de - robtex.com