`derkoblenzer.de`

DNSSEC	⚠️ Not signed
A	2a03:4000:30:1fca::10:8217^{🇩🇪 netcup-AS2a03:4000::/32 NETCUP-GMBH}
A	188.68.47.63^{🇩🇪 netcup-AS188.68.47.0/24}
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	`mail.derkoblenzer.de` ⭐
		A	188.68.47.65^{🇩🇪 netcup-AS188.68.47.0/24}
			PTR	`mx2f41.netcup.net`
MX	`mx2f41.netcup.net`⁽⁵⁰⁾
		A	188.68.47.65^{🇩🇪 netcup-AS188.68.47.0/24}
			PTR	`mx2f41.netcup.net`
TXT	`v=spf1 mx a include:_spf.webhosting.systems ~all`
SOA	`root-dns.netcup.net`dnsadmin@netcup.net 2019-12-20 #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=1777227180

Subdomains

mail.derkoblenzer.de

Same first word

derkoblenzer.de

DNS History

11 records (7 active, 4 former)

○NSns1.genx-hosting.de2015-07-17 → 2017-03-31 · 4 obs

● 2015-07-17 03:05:46
● 2017-03-31 09:22:20
○ 2026-04-01 23:07:52
○ 2026-04-26 18:13:26

○NSns2.genx-hosting.de2015-07-17 → 2017-03-31 · 4 obs

● 2015-07-17 03:05:46
● 2017-03-31 09:22:20
○ 2026-04-01 23:07:52
○ 2026-04-26 18:13:26

○NSns3.genx-hosting.de2015-07-17 → 2017-03-31 · 4 obs

● 2015-07-17 03:05:46
● 2017-03-31 09:22:20
○ 2026-04-01 23:07:52
○ 2026-04-26 18:13:26

●NSroot-dns.netcup.net2026-04-01 → 2026-04-26 · 3 obs

○ 2017-03-31 09:22:20
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

●NSsecond-dns.netcup.net2026-04-01 → 2026-04-26 · 3 obs

○ 2017-03-31 09:22:20
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

●NSthird-dns.netcup.net2026-04-01 → 2026-04-26 · 3 obs

○ 2017-03-31 09:22:20
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

●MXmail.derkoblenzer.de2015-07-17 → 2026-04-26 · 2 obs

● 2015-07-17 03:05:46
● 2026-04-26 18:13:26

●MXmx2f41.netcup.net2026-04-01 → 2026-04-26 · 3 obs

○ 2015-07-17 03:05:46
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

●A188.68.47.632026-04-01 → 2026-04-26 · 3 obs

○ 2017-03-31 09:22:20
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

●A2a03:4000:30:1fca::10:82172026-04-01 → 2026-04-26 · 3 obs

○ 2017-03-31 09:22:20
● 2026-04-01 23:07:52
● 2026-04-26 18:13:26

○A87.118.74.742015-07-17 → 2017-03-31 · 4 obs

● 2015-07-17 03:05:46
● 2017-03-31 09:22:20
○ 2026-04-01 23:07:52
○ 2026-04-26 18:13:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:37.221.199.199

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

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at derkoblenzer.de: Error: DNS query timeout: 194.246.96.1 for DS derkoblenzer.de

⏱️ Timing

Total: 3752ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`188.68.47.63`
AAAA	1	`2a03:4000:30:1fca::10:8217`
NS	3	`third-dns.netcup.net, root-dns.netcup.net...`
MX	2	`mx2f41.netcup.net (pri: 50), mail.derkoblenzer.de (pri: 10)`
TXT	1	`v=spf1 mx a include:_spf.webhosting.syst`
SOA	1	`root-dns.netcup.net dnsadmin.netcup.net`

Analysis

Hierarchy

derkoblenzer.de is a parent of mail.derkoblenzer.de.

IP Addresses

derkoblenzer.de points to two IP numbers: 2a03:4000:30:1fca::10:8217 and 188.68.47.63.

Other host names, for instance mx0.hausmeisterservice24.de, www.dreweb.de, chehade.net, slawski.eu and willanzheim.de share IP numbers with derkoblenzer.de.

Name Servers

The delegation for derkoblenzer.de is handled by three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.

derkoblenzer.de at least partially shares name servers with other domains, for instance inkultrain.de, lareina.de, derfob.de, aaki.net and netkin.de.

Two IP numbers per host:

root-dns.netcup.net points to 2a03:4000:0:1::e1e1 and 46.38.225.225.

second-dns.netcup.net points to 2a03:4000:2:24b::c7c7 and 37.221.199.199.

third-dns.netcup.net points to 2a03:4001:0:106::3f44 and 188.68.63.68.

Mail Servers

derkoblenzer.de is handled by two mail servers: mail.derkoblenzer.de and mx2f41.netcup.net.

derkoblenzer.de shares mail servers with other domains at least in part, for instance maxe-medien.de, holzkirchner.de, nutt-o-drom.de, marketconsult.de and funktionsbekleidung.de.

these mail servers are often used with mail.maxe-medien.de and mail.holzkirchner.de.

Host names sharing a single IP:

mail.derkoblenzer.de points to 188.68.47.65

mx2f41.netcup.net points to 188.68.47.65

Host names that point to 188.68.47.65: mail.derkoblenzer.de and mx2f41.netcup.net

derkoblenzer.de - robtex.com

derkoblenzer.de

de

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`derkoblenzer.de`

`de`