`passivehouse.de`

DNSSEC	⚠️ Not signed
A	81.169.159.66^{🇩🇪 STRATO81.169.128.0/17 AG}
		PTR	`bauforen.de`
NS	`ns4.stratoserver.net` ⭐
		A	2001:8d8:fe:53:5747:2a74:d:32^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
		A	217.160.80.159^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
NS	`ns3.stratoserver.net`
		A	2607:f1c0:fe:53:185:132:34:159^{🇺🇸 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	`ns3.stratoserver.net`
		A	185.132.34.159^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns3.stratoserver.net`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtp.rzone.de`
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`
SOA	`ns4.stratoserver.net`hostmaster@strato-rz.de 2020-06-08 #16

`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=1775973021

Same first word

passivehouse.co.nz

passivehouse.biz

passivehouse.lv

passivehouse.construction

passivehouse.es

passivehouse.be

passivehouse.fr

passivehouse.de

passivehouse.cc

passivehouse.us

passivehouse.com

Similar names

housepassive.com

DNS History

7 records (4 active, 3 former)

○NSns.serverkompetenz.de2015-07-17 → 2016-09-09 · 4 obs

● 2015-07-17 10:16:48
● 2016-09-09 21:24:12
○ 2017-04-19 05:05:52
○ 2026-04-12 06:17:18

○NSns2.serverkompetenz.de2015-07-17 → 2016-09-09 · 4 obs

● 2015-07-17 10:16:48
● 2016-09-09 21:24:12
○ 2017-04-19 05:05:52
○ 2026-04-12 06:17:18

●NSns3.stratoserver.net2017-04-19 → 2026-04-12 · 3 obs

○ 2016-09-09 21:24:12
● 2017-04-19 05:05:52
● 2026-04-12 06:17:18

●NSns4.stratoserver.net2017-04-19 → 2026-04-12 · 3 obs

○ 2016-09-09 21:24:12
● 2017-04-19 05:05:52
● 2026-04-12 06:17:18

○MXmx.52139987.de.strato-hosting.eu2015-07-17 → 2017-04-19 · 4 obs

● 2015-07-17 10:16:48
● 2017-04-19 05:05:52
○ 2026-04-02 10:08:52
○ 2026-04-12 06:17:18

●MXsmtp.rzone.de2026-04-02 → 2026-04-12 · 3 obs

○ 2017-04-19 05:05:52
● 2026-04-02 10:08:52
● 2026-04-12 06:17:18

●A81.169.159.662015-07-17 → 2026-04-12 · 2 obs

● 2015-07-17 10:16:48
● 2026-04-12 06:17:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
passivehouse.de	ns4.stratoserver.net, ns3.stratoserver.net	-

✅ Authoritative Response

Server:185.132.34.159

NS records: ns4.stratoserver.net, ns3.stratoserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for passivehouse.de (unsigned zone)

⏱️ Timing

Total: 868ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.159.66`
NS	2	`ns4.stratoserver.net, ns3.stratoserver.net`
MX	1	`smtp.rzone.de (pri: 5)`
SOA	1	`ns4.stratoserver.net hostmaster.strato-r`

Analysis

IP Addresses

passivehouse.de points to IP number: 81.169.159.66.

Other host names such as normen24.de, bauforen.de, gamma2.de, konturhaus.de and epass-online.de share IPs with passivehouse.de.

Name Servers

passivehouse.de is delegated to two name servers: ns3.stratoserver.net and ns4.stratoserver.net.

passivehouse.de shares the same name server setup as optosan.de, benthecrew.de, fashiontag.de, blankokredit.com and goldmag.de.

Host names with two IP numbers: ns3.stratoserver.net points to: 2607:f1c0:fe:53:185:132:34:159 and 185.132.34.159; ns4.stratoserver.net points to: 2001:8d8:fe:53:5747:2a74:d:32 and 217.160.80.159.

Mail Servers

passivehouse.de is handled by a single mail server, smtp.rzone.de.

The mail server setup for passivehouse.de matches that of other domains, for instance mail.alutape.nl, vanbuerengroup.com, rominakluinfotografie.nl, kwareno.nl and gelukscijfer.nl.

smtp.rzone.de points to two IPs: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.

passivehouse.de - robtex.com

passivehouse.de

de