`centerofefficiency.de`

DNSSEC	⚠️ Not signed
A	144.76.173.237^{🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1}
		PTR	`centerofefficiency.com`
NS	`ns1.mainns.de` ⭐
		A	2001:67c:1bc::21^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.mainns.de`
		A	192.174.68.21^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
NS	`ns2.mainns.eu`
		A	2001:67c:10b8::21^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.mainns.eu`
		A	176.97.158.21^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.mainns.eu`
NS	`ns3.mainns.net`
		A	2001:67c:1bc::20^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns3.mainns.net`
		A	192.174.68.20^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
MX	`mail.centerofefficiency.de` ⭐
		A	144.76.173.237^{🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1}
			PTR	`centerofefficiency.com`
SOA	`ns1.mainns.de`info@domains.resellerinterface.de serial=1648425600

`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=1784504421

Subdomains

mail.centerofefficiency.de

Same first word

centerofefficiency.de

centerofefficiency.com

DNS History

8 records (5 active, 3 former)

○NSns1.domainoffensive.de2015-07-26 → 2018-11-22 · 4 obs

● 2015-07-26 00:46:14
● 2018-11-22 07:14:16
○ 2026-03-26 22:05:14
○ 2026-07-20 00:14:52

●NSns1.mainns.de2026-03-26 → 2026-07-20 · 3 obs

○ 2018-11-22 07:14:16
● 2026-03-26 22:05:14
● 2026-07-20 00:14:52

○NSns2.domainoffensive.de2015-07-26 → 2018-11-22 · 4 obs

● 2015-07-26 00:46:14
● 2018-11-22 07:14:16
○ 2026-03-26 22:05:14
○ 2026-07-20 00:14:52

●NSns2.mainns.eu2026-03-26 → 2026-07-20 · 3 obs

○ 2018-11-22 07:14:16
● 2026-03-26 22:05:14
● 2026-07-20 00:14:52

○NSns3.domainoffensive.de2015-11-27 → 2018-11-22 · 5 obs

○ 2015-07-26 00:46:14
● 2015-11-27 14:52:42
● 2018-11-22 07:14:16
○ 2026-03-26 22:05:14
○ 2026-07-20 00:14:52

●NSns3.mainns.net2026-03-26 → 2026-07-20 · 3 obs

○ 2018-11-22 07:14:16
● 2026-03-26 22:05:14
● 2026-07-20 00:14:52

●MXmail.centerofefficiency.de2015-11-27 → 2026-07-20 · 2 obs

● 2015-11-27 14:52:42
● 2026-07-20 00:14:52

●A144.76.173.2372015-07-26 → 2026-07-20 · 2 obs

● 2015-07-26 00:46:14
● 2026-07-20 00:14:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
centerofefficiency.de	ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net	2 records

✅ Authoritative Response

Server:192.174.68.21

NS records: ns1.mainns.de, ns2.mainns.eu, ns3.mainns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centerofefficiency.de (unsigned zone)

⏱️ Timing

Total: 696ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`144.76.173.237`
NS	3	`ns1.mainns.de, ns2.mainns.eu...`
MX	1	`mail.centerofefficiency.de (pri: 10)`
SOA	1	`ns1.mainns.de info.domains.resellerinter`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.mainns.de, ns1.mainns.de)

Analysis

Hierarchy

mail.centerofefficiency.de is delegated beneath centerofefficiency.de.

IP Addresses

centerofefficiency.de resolves to one IP address: 144.76.173.237.

Host names such as centerofefficiency.com, mail.centerofefficiency.de and mail.centerofefficiency.com share their IP numbers with centerofefficiency.de.

Name Servers

DNS for centerofefficiency.de is handled by three authoritative name servers: ns1.mainns.de, ns2.mainns.eu and ns3.mainns.net.

There is at least partial name server overlap between centerofefficiency.de and other domains — autled.org, startercenter-wirtschaft.de, casa-domus.de and two more among them.

Three hostnames — ns1.mainns.de, ns2.mainns.eu and ns3.mainns.net — each have two IP addresses: ns1.mainns.de has 192.174.68.21 and 2001:67c:1bc::21, ns2.mainns.eu has 176.97.158.21 and 2001:67c:10b8::21, and ns3.mainns.net has 192.174.68.20 and 2001:67c:1bc::20.

Mail Servers

Mail for centerofefficiency.de is handled by a single mail server, mail.centerofefficiency.de.

mail.centerofefficiency.de has exactly one IP number: 144.76.173.237.

centerofefficiency.de - robtex.com