`door-operator.com`

DNSSEC	⚠️ Not signed
A	54.68.182.72^{🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix}
		PTR	`ec2-54-68-182-72.us-west-2.compute.amazonaws.com`
NS	`ns1.dormakaba.com` ⭐
		A	2001:67c:1bc::104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
		A	192.174.68.104^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.anycastdns.ch`
			PTR	`ns.inwx.ch`
			PTR	`ns.domrobot.com`
			PTR	`ns.inwx.com`
			PTR	`ns.inwx.de`
			PTR	`a.xnameserver.de`
			PTR	`ns.inwx.es`
NS	`ns2.dormakaba.com`
		A	2001:67c:10b8::104^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
		A	176.97.158.104^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.anycastdns.ch`
			PTR	`ns2.inwx.ch`
			PTR	`ns2.inwx.com`
			PTR	`ns2.inwx.de`
			PTR	`b.xnameserver.de`
			PTR	`ns2.inwx.es`
			PTR	`ns.domrobot.net`
NS	`ns3.dormakaba.com`
		A	2a02:d500::53^{🇩🇪 INWX2a02:d500::/29}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
		A	45.87.158.53^{🇩🇪 INWX45.87.158.0/23}
			PTR	`c.xnameserver.de`
			PTR	`ns3.inwx.eu`
			PTR	`ns.domrobot.org`
MX	`mail.door-operator.com` ⭐
		A	54.68.182.72^{🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix}
			PTR	`ec2-54-68-182-72.us-west-2.compute.amazonaws.com`
TXT	`v=spf1 -all`
SOA	`ns1.dormakaba.com`hostmaster@inwx.de 2025-11-05 #0

`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=1774411172

Subdomains

mail.door-operator.com

Same first word

door-operator.com

DNS History

12 records (5 active, 7 former)

○NSdns1.microtech.co.gg2015-08-18 → 2017-04-02 · 4 obs

● 2015-08-18 09:23:46
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

○NSdns1.name-s.net2015-12-10 → 2017-04-02 · 5 obs

○ 2015-08-18 09:23:46
● 2015-12-10 13:53:28
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

○NSdns2.name-s.net2015-12-10 → 2017-04-02 · 5 obs

○ 2015-08-18 09:23:46
● 2015-12-10 13:53:28
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

○NSdns3.mtgsy.com2015-12-10 → 2017-04-02 · 5 obs

○ 2015-08-18 09:23:46
● 2015-12-10 13:53:28
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

○NSdns4.mtgsy.com2015-12-10 → 2017-04-02 · 5 obs

○ 2015-08-18 09:23:46
● 2015-12-10 13:53:28
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

●NSns1.dormakaba.com2026-02-15 → 2026-03-25 · 3 obs

○ 2017-04-02 23:52:40
● 2026-02-15 19:04:12
● 2026-03-25 04:28:10

●NSns2.dormakaba.com2026-02-15 → 2026-03-25 · 3 obs

○ 2017-04-02 23:52:40
● 2026-02-15 19:04:12
● 2026-03-25 04:28:10

●NSns3.dormakaba.com2026-02-15 → 2026-03-25 · 3 obs

○ 2017-04-02 23:52:40
● 2026-02-15 19:04:12
● 2026-03-25 04:28:10

●MXmail.door-operator.com2015-08-18 → 2026-03-25 · 2 obs

● 2015-08-18 09:23:46
● 2026-03-25 04:28:10

○A212.77.233.252015-08-18 → 2017-04-02 · 4 obs

● 2015-08-18 09:23:46
● 2017-04-02 23:52:40
○ 2026-02-15 19:04:12
○ 2026-03-25 04:28:10

●A54.68.182.722026-02-15 → 2026-03-25 · 3 obs

○ 2017-04-02 23:52:40
● 2026-02-15 19:04:12
● 2026-03-25 04:28:10

○CNAMEdorma.com2015-08-18 → 2026-02-17 · 4 obs

● 2015-08-18 09:23:46
● 2026-02-17 04:03:52
○ 2026-02-17 09:21:22
○ 2026-03-25 04:28:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
door-operator.com	ns1.dormakaba.com, ns2.dormakaba.com, ns3.dormakaba.com	6 records

✅ Authoritative Response

Server:45.87.158.53

NS records: ns1.dormakaba.com, ns2.dormakaba.com, ns3.dormakaba.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for door-operator.com (unsigned zone)

⏱️ Timing

Total: 244ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.68.182.72`
NS	3	`ns3.dormakaba.com, ns1.dormakaba.com...`
MX	1	`mail.door-operator.com (pri: 10)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.dormakaba.com hostmaster.inwx.de`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.dormakaba.com, ns1.dormakaba.com, ns2.dormakaba.com...)

Analysis

Hierarchy

The parent of mail.door-operator.com is door-operator.com.

IP Addresses

door-operator.com points to an IP address: 54.68.182.72.

other host names include iwitness.co, emergency-exit-control.com, churchnurserysecurity.info, shopwestinghouse.com and dorma-time-access.com; they share IP numbers with door-operator.com.

Name Servers

door-operator.com is delegated to three name servers ns1.dormakaba.com, ns2.dormakaba.com and ns3.dormakaba.com.

door-operator.com at least partially shares name servers with other domains, for instance dormakabacountry.com, dormasystempartner.de, dormapay.com, cranedoor.com and variflex-einfachgenial.de.

Host names with two IP numbers:

ns1.dormakaba.com points to 2001:67c:1bc::104 and 192.174.68.104; ns2.dormakaba.com points to 2001:67c:10b8::104 and 176.97.158.104; ns3.dormakaba.com points to 2a02:d500::53 and 45.87.158.53.

Mail Servers

door-operator.com is handled by a single mail server, mail.door-operator.com.

The host name mail.door-operator.com points to IP 54.68.182.72.

door-operator.com - robtex.com