`coolconnection.de`

DNSSEC	⚠️ Not signed
A	212.12.59.159^{🇩🇪 WORK-AS212.12.56.0/21 n@work Internet Informationssysteme GmbH}
NS	`ns.work.de` ⭐
		A	2a00:ea8:200::35^{🇩🇪 WORK-AS2a00:ea8::/32 n@work Internet Informationssysteme GmbH}
			PTR	`ns.work.de`
		A	212.12.32.174^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`ns.work.de`
NS	`hulk.work.de`
		A	2a00:12d0:1000:500::20^{🇩🇪 TNG-AS2a00:12d0::/29 ennit server GmbH}
			PTR	`hulk.work.de`
		A	213.158.112.20^{🇩🇪 TNG-AS213.158.96.0/19 TNG - the net generation II}
MX	`mx1.work.de` ⭐
		A	212.12.42.218^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx3.work.de`
		A	212.12.42.226^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx2.work.de`
MX	`mx2.work.de` ⭐
		A	212.12.42.226^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx2.work.de`
MX	`mx3.work.de` ⭐
		A	212.12.42.218^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx3.work.de`
MX	`mx4.work.de` ⭐
		A	212.12.42.218^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx3.work.de`
MX	`mx5.work.de` ⭐
		A	212.12.42.226^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx2.work.de`
MX	`mx6.work.de` ⭐
		A	212.12.42.218^{🇩🇪 WORK-AS212.12.32.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`mx3.work.de`
SOA	`ns.work.de`hostmaster@work.de 2004-11-17 #1

`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=1774885760

Same first word

coolconnection.de

Similar names

coloconnection.com

DNS History

9 records (9 active, 0 former)

●NShulk.work.de2015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

●NSns.work.de2015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

●MXmx1.work.de2015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

●MXmx2.work.de2015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

●MXmx3.work.de2015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

●MXmx4.work.de2015-07-17 → 2026-03-30 · 4 obs

● 2015-07-17 20:50:14
● 2017-02-25 10:15:16
○ 2026-03-27 22:44:30
● 2026-03-30 15:51:12

●MXmx5.work.de2015-07-17 → 2026-03-30 · 4 obs

● 2015-07-17 20:50:14
● 2017-02-25 10:15:16
○ 2026-03-27 22:44:30
● 2026-03-30 15:51:12

●MXmx6.work.de2015-07-17 → 2026-03-30 · 4 obs

● 2015-07-17 20:50:14
● 2017-02-25 10:15:16
○ 2026-03-27 22:44:30
● 2026-03-30 15:51:12

●A212.12.59.1592015-07-17 → 2026-03-30 · 2 obs

● 2015-07-17 20:50:14
● 2026-03-30 15:51:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
coolconnection.de	ns.work.de, hulk.work.de	4 records

✅ Authoritative Response

Server:212.12.32.174

NS records: ns.work.de, hulk.work.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolconnection.de (unsigned zone)

⏱️ Timing

Total: 750ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.12.59.159`
NS	2	`ns.work.de, hulk.work.de`
MX	3	`mx3.work.de (pri: 10), mx1.work.de (pri: 10)...`
SOA	1	`ns.work.de hostmaster.work.de`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.work.de, hulk.work.de, ns.work.de...)

Analysis

IP Addresses

coolconnection.de points to a single IP address: 212.12.59.159.

Name Servers

Two name servers hulk.work.de and ns.work.de handle the delegation for coolconnection.de.

coolconnection.de shares the same name server setup as other domains, for example ottoofficehome.de, flyingdog.info, nordkirche-weltweit.de, lipco.de and mein-foto-xxl.com.

coolconnection.de at least partially shares name servers with other domains, for example gelbeseiten-mecklenburg-vorpommern.de, work.de, wert-fauna.de, gelbeseiten-buchholz.de and xn--gelbeseiten-fuhlsbttel-9lc.de.

These name servers are often used together with ns.duf.de and borderzone.work.de.

Host names with two IP numbers:

hulk.work.de points to 2a00:12d0:1000:500::20 and 213.158.112.20.

ns.work.de points to 2a00:ea8:200::35 and 212.12.32.174.

Mail Servers

coolconnection.de is handled by six mail servers: mx1.work.de, mx2.work.de, mx3.work.de, mx4.work.de, mx5.work.de and mx6.work.de.

coolconnection.de shares at least partially some mail servers with other domains, for instance jugendsprachreisen.de, hamburg-cruisedays.de, a2-a3.com, 1000islandstower.com and 3b1.de.

these mail servers are commonly used with fallback.work.de.

Patterns: 212.12.42.218 is the target for mx1.work.de, mx3.work.de, mx4.work.de and mx6.work.de. 212.12.42.226 is the target for mx1.work.de, mx2.work.de and mx5.work.de.

Names with two IPs:

Host mx1.work.de points to: 212.12.42.218 and 212.12.42.226.

Names with one IP:

Host mx2.work.de points to: 212.12.42.226.

Host mx3.work.de points to: 212.12.42.218.

Host mx4.work.de points to: 212.12.42.218.

Host mx5.work.de points to: 212.12.42.226.

Host mx6.work.de points to: 212.12.42.218.

Names pointing to 212.12.42.218: mx1.work.de, mx3.work.de, mx4.work.de and mx6.work.de.

Names pointing to 212.12.42.226: mx1.work.de, mx2.work.de and mx5.work.de.

coolconnection.de - robtex.com