programmer.de - dns.ninja

`programmer.de`

DNSSEC	⚠️ Not signed
A	2001:1bc0:d::2:4^{🇩🇪 PROBENETWORKS-AS2001:1bc0::/32 Probe Networks european network}
		PTR	`http2.core-networks.de`
A	194.213.5.204^{🇩🇪 PROBENETWORKS-AS194.213.5.0/24 Core Networks GmbH}
NS	`root-dns.netcup.net` ⭐
		A	2a03:4000:0:1::e1e1^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`root-dns.netcup.net`
		A	46.38.225.225^{🇩🇪 netcup-AS46.38.225.0/24}
			PTR	`root-dns.netcup.net`
NS	`second-dns.netcup.net`
		A	2a03:4000:2:24b::c7c7^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
			PTR	`second-dns.netcup.net`
		A	37.221.199.199^{🇩🇪 netcup-AS37.221.196.0/22}
			PTR	`second-dns.netcup.net`
NS	`third-dns.netcup.net`
		A	2a03:4001:0:106::3f44^{🇩🇪 netcup-AS2a03:4001::/32 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
		A	188.68.63.68^{🇩🇪 netcup-AS188.68.63.0/24 NETCUP-GMBH}
			PTR	`third-dns.netcup.net`
MX	`mx1.core-networks.de` ⭐
		A	2001:1bc0:d::4:9^{🇩🇪 PROBENETWORKS-AS2001:1bc0::/32 Probe Networks european network}
			PTR	`mail.core-networks.de`
		A	82.96.72.7^{🇩🇪 PROBENETWORKS-AS82.96.64.0/18 Probe Networks european network}
MX	`mx2.core-networks.eu`⁽²⁰⁾
		A	2001:1bc0:d::2:12^{🇩🇪 PROBENETWORKS-AS2001:1bc0::/32 Probe Networks european network}
			PTR	`mx2.core-networks.de`
		A	194.213.5.212^{🇩🇪 PROBENETWORKS-AS194.213.5.0/24 Core Networks GmbH}
			PTR	`mx2.core-networks.de`
MX	`mx3.core-networks.com`⁽³⁰⁾
		A	2001:1bc0:d::2:12^{🇩🇪 PROBENETWORKS-AS2001:1bc0::/32 Probe Networks european network}
			PTR	`mx2.core-networks.de`
		A	194.213.5.212^{🇩🇪 PROBENETWORKS-AS194.213.5.0/24 Core Networks GmbH}
			PTR	`mx2.core-networks.de`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2021-08-22 #22

`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=1784963693

Previously MX for

programmer.de

Same first word

Similar names

remmargorp.com

emrprogram.com

grammerpro.com

remprogram.com

DNS History

13 records (8 active, 5 former)

○NSns1.savando.de2015-04-23 → 2016-09-25 · 4 obs

● 2015-04-23 14:07:38
● 2016-09-25 05:20:50
○ 2017-06-11 15:30:12
○ 2026-07-25 07:40:42

○NSns2.savando.de2015-04-23 → 2016-09-25 · 4 obs

● 2015-04-23 14:07:38
● 2016-09-25 05:20:50
○ 2017-06-11 15:30:12
○ 2026-07-25 07:40:42

○NSns3.savando.de2015-04-23 → 2016-09-25 · 4 obs

● 2015-04-23 14:07:38
● 2016-09-25 05:20:50
○ 2017-06-11 15:30:12
○ 2026-07-25 07:40:42

●NSroot-dns.netcup.net2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●NSsecond-dns.netcup.net2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●NSthird-dns.netcup.net2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●MXmx1.core-networks.de2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●MXmx2.core-networks.eu2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●MXmx3.core-networks.com2017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

○MXprogrammer.de2015-04-23 → 2016-09-25 · 4 obs

● 2015-04-23 14:07:38
● 2016-09-25 05:20:50
○ 2017-06-11 15:30:12
○ 2026-07-25 07:40:42

○A178.254.62.742015-04-23 → 2016-09-25 · 4 obs

● 2015-04-23 14:07:38
● 2016-09-25 05:20:50
○ 2017-06-11 15:30:12
○ 2026-07-25 07:40:42

●A194.213.5.2042017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

●A2001:1bc0:d::2:42017-06-11 → 2026-07-25 · 3 obs

○ 2016-09-25 05:20:50
● 2017-06-11 15:30:12
● 2026-07-25 07:40:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
programmer.de	third-dns.netcup.net, root-dns.netcup.net, second-dns.netcup.net	-

✅ Authoritative Response

Server:188.68.63.68

NS records: third-dns.netcup.net, root-dns.netcup.net, second-dns.netcup.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programmer.de (unsigned zone)

⏱️ Timing

Total: 2711ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`194.213.5.204`
AAAA	1	`2001:1bc0:d::2:4`
NS	3	`root-dns.netcup.net, third-dns.netcup.net...`
MX	3	`mx3.core-networks.com (pri: 30), mx2.core-networks.eu (pri: 20)...`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

IP Addresses

programmer.de resolves to the IP addresses 194.213.5.204 and 2001:1bc0:d::2:4

gmh-prueftechnik.com, vorlon.de, mx0.bitinspect.net plus two other host names have IP numbers in common with programmer.de.

Name Servers

programmer.de is served by three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

programmer.de partially shares its NS delegation with several other domains, including aknorb.de, bookingflight.de, floramontana.de and two others.

The hostnames root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net each direct to two IP addresses — root-dns.netcup.net to 46.38.225.225 and 2a03:4000:0:1::e1e1, second-dns.netcup.net to 37.221.199.199 and 2a03:4000:2:24b::c7c7, and third-dns.netcup.net to 188.68.63.68 and 2a03:4001:0:106::3f44.

Mail Servers

programmer.de uses three mail servers — mx3.core-networks.com, mx1.core-networks.de and mx2.core-networks.eu.

At least some of the mail servers used by programmer.de are shared with other domains: vigrid.de, hiskom.de, tiga-ev.de and two others among them.

These mail servers tend to be used in conjunction with the mail servers mx2.core-networks.de.

Three hostnames with two IP addresses each: mx3.core-networks.com directs to 194.213.5.212 and 2001:1bc0:d::2:12; mx1.core-networks.de directs to 82.96.72.7 and 2001:1bc0:d::4:9; mx2.core-networks.eu directs to 194.213.5.212 and 2001:1bc0:d::2:12. Notably, mx3.core-networks.com and mx2.core-networks.eu share the same IP pair.

mx3.core-networks.com and mx2.core-networks.eu each have 2001:1bc0:d::2:12 IP addresses.

mx3.core-networks.com and mx2.core-networks.eu each have 194.213.5.212 IP addresses.