`fischer-klause.de`

DNSSEC	⚠️ Not signed
A	157.90.6.102^{🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC}
		PTR	`web40.isuma.de`
NS	`ns40.isuma.de` ⭐
		A	157.90.6.102^{🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC}
			PTR	`web40.isuma.de`
NS	`ns50.isuma.de`
		A	128.140.70.47^{🇩🇪 Hetzner128.140.0.0/17 HETZNER-DC}
			PTR	`ns7.online-now.de`
NS	`ns51.isuma.de`
		A	95.216.220.46^{🇫🇮 Hetzner95.216.0.0/16 HETZNER-DC}
			PTR	`ns9.online-now.de`
MX	`mail.fischer-klause.de` ⭐
		A	157.90.6.102^{🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC}
			PTR	`web40.isuma.de`
TXT	`v=spf1 include:_spf40.isuma.de ~all`
SOA	`ns40.isuma.de`kontakt@isuma.de 2026-03-17 #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=1778745377

Subdomains

mail.fischer-klause.de

Same first word

fischer-klause.de

DNS History

8 records (5 active, 3 former)

○NSns.isuma.de2015-07-20 → 2017-10-01 · 4 obs

● 2015-07-20 06:43:22
● 2017-10-01 01:03:58
○ 2026-03-31 19:16:00
○ 2026-05-14 08:26:22

○NSns2.isuma.de2015-07-20 → 2017-10-01 · 4 obs

● 2015-07-20 06:43:22
● 2017-10-01 01:03:58
○ 2026-03-31 19:16:00
○ 2026-05-14 08:26:22

●NSns40.isuma.de2026-03-31 → 2026-05-14 · 3 obs

○ 2017-10-01 01:03:58
● 2026-03-31 19:16:00
● 2026-05-14 08:26:22

●NSns50.isuma.de2026-03-31 → 2026-05-14 · 3 obs

○ 2017-10-01 01:03:58
● 2026-03-31 19:16:00
● 2026-05-14 08:26:22

●NSns51.isuma.de2026-03-31 → 2026-05-14 · 3 obs

○ 2017-10-01 01:03:58
● 2026-03-31 19:16:00
● 2026-05-14 08:26:22

●MXmail.fischer-klause.de2015-07-20 → 2026-05-14 · 2 obs

● 2015-07-20 06:43:22
● 2026-05-14 08:26:22

●A157.90.6.1022026-03-31 → 2026-05-14 · 3 obs

○ 2017-10-01 01:03:58
● 2026-03-31 19:16:00
● 2026-05-14 08:26:22

○A37.61.200.772015-07-20 → 2017-10-01 · 4 obs

● 2015-07-20 06:43:22
● 2017-10-01 01:03:58
○ 2026-03-31 19:16:00
○ 2026-05-14 08:26:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, a.nic.de, z.nic.de	-
fischer-klause.de	ns40.isuma.de, ns50.isuma.de, ns51.isuma.de	2 records

✅ Authoritative Response

Server:95.216.220.46

NS records: ns40.isuma.de, ns50.isuma.de, ns51.isuma.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fischer-klause.de (unsigned zone)

⏱️ Timing

Total: 907ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.90.6.102`
NS	3	`ns40.isuma.de, ns51.isuma.de...`
MX	1	`mail.fischer-klause.de (pri: 10)`
TXT	1	`v=spf1 include:_spf40.isuma.de ~all`
SOA	1	`ns40.isuma.de kontakt.isuma.de`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns50.isuma.de, ns51.isuma.de)

Analysis

Hierarchy

fischer-klause.de is the parent of mail.fischer-klause.de.

IP Addresses

fischer-klause.de resolves to a single IP: 157.90.6.102.

Other host names, for instance mail.bildagentur-ostsee.de, mail.ham-ostsee.de, mur-rostock.de, mail.musterhauspark.de and ns40.isuma.de share IP numbers with fischer-klause.de.

Name Servers

fischer-klause.de delegates to three name servers: ns40.isuma.de, ns50.isuma.de and ns51.isuma.de.

fischer-klause.de shares some name servers with other domains, for example ostsee-charter-yachten.de, last-minute-angebote-ostsee.de, ostsee-presse.de, vm-scharwies.de and ostsee-grusskarten.de.

These name servers are commonly used with the name servers ns30.isuma.de.

Host names with a single IP: ns40.isuma.de points to 157.90.6.102; ns50.isuma.de points to 128.140.70.47; ns51.isuma.de points to 95.216.220.46.

Mail Servers

fischer-klause.de is handled by a single mail server, mail.fischer-klause.de.

Host name mail.fischer-klause.de points to IP 157.90.6.102.

fischer-klause.de - robtex.com