`knowhowcorner.de`

DNSSEC	⚠️ Not signed
A	178.254.15.201^{🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK}
		PTR	`sh-74.1blu.de`
NS	`ns01.1blu.de` ⭐
		A	87.238.195.66^{🇩🇪 EVANZOAS87.238.192.0/21 DE-EVANZO-MK}
NS	`ns02.1blu.de`
		A	178.254.5.130^{🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK}
MX	`mail.knowhowcorner.de` ⭐
		A	178.254.4.101^{🇩🇪 EVANZOAS178.254.0.0/19 DE-EVANZO-MK}
			PTR	`ms-10.1blu.de`
TXT	`v=spf1 mx include:_spf.1blu.de ~all`
SOA	`ns01.1blu.de`hostmaster@1blu.de 2024-04-15 #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=1774561977

Subdomains

mail.knowhowcorner.de

www.knowhowcorner.de

Same first word

knowhowcorner.de

DNS History

4 records (4 active, 0 former)

●NSns01.1blu.de2026-03-26 → 2026-03-26 · 2 obs

● 2026-03-26 17:37:34
● 2026-03-26 22:19:50

●NSns02.1blu.de2026-03-26 → 2026-03-26 · 2 obs

● 2026-03-26 17:37:34
● 2026-03-26 22:19:50

●MXmail.knowhowcorner.de2026-03-26 → 2026-03-26 · 2 obs

● 2026-03-26 17:37:34
● 2026-03-26 22:19:50

●A178.254.15.2012026-03-26 → 2026-03-26 · 2 obs

● 2026-03-26 17:37:34
● 2026-03-26 22:19:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
knowhowcorner.de	ns01.1blu.de, ns02.1blu.de	-

✅ Authoritative Response

Server:87.238.195.66

NS records: ns01.1blu.de, ns02.1blu.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowhowcorner.de (unsigned zone)

⏱️ Timing

Total: 1592ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`178.254.15.201`
NS	2	`ns02.1blu.de, ns01.1blu.de`
MX	1	`mail.knowhowcorner.de (pri: 10)`
TXT	1	`v=spf1 mx include:_spf.1blu.de ~all`
SOA	1	`ns01.1blu.de hostmaster.1blu.de`

Analysis

Hierarchy

knowhowcorner.de is parent of mail.knowhowcorner.de and www.knowhowcorner.de.

IP Addresses

knowhowcorner.de points to a single IP: 178.254.15.201.

Other host names, for instance sei-vital.de, swuh.de, shoptexter.de, gelada-online.de and h-b-a.de share IP numbers with knowhowcorner.de.

Name Servers

knowhowcorner.de's delegation is to two name servers ns01.1blu.de and ns02.1blu.de.

knowhowcorner.de shares the same name server configuration as other domains, such as holzbau-zagola.net, cosabo.de, muttermund.de, glueck32.de and meinel.cc.

Host names with a single IP:

ns01.1blu.de resolves to 87.238.195.66.

ns02.1blu.de resolves to 178.254.5.130.

Mail Servers

knowhowcorner.de is served by a single mail server, mail.knowhowcorner.de.

mail.knowhowcorner.de points to IP number 178.254.4.101.

knowhowcorner.de - robtex.com