`rabbitsystems.de`

DNSSEC	⚠️ Not signed
A	51.38.101.248^{🇫🇷 OVH51.38.0.0/16}
		PTR	`webserver1.rabbit-systems.de`
NS	`ns-master.crossroad-networks.com` ⭐
		A	2604:a880:800:10::1b:a001^{🇺🇸 DIGITALOCEAN2604:a880:800::/48 DigitalOcean}
			PTR	`ns-master.crossroad-networks.com`
		A	104.131.50.35^{🇺🇸 DIGITALOCEAN104.131.0.0/18 DigitalOcean}
			PTR	`ns-master.crossroad-networks.com`
NS	`ns-slave.crossroad-networks.com`
		A	2001:41d0:723:9f00::201^{🇫🇷 OVH2001:41d0::/32 IPv6}
			PTR	`ns-slave.crossroad-networks.com`
		A	51.38.101.242^{🇫🇷 OVH51.38.0.0/16}
			PTR	`ns-slave.crossroad-networks.com`
MX	`mail.fablemail.com` ⭐
		A	2001:41d0:723:9f00::202^{🇫🇷 OVH2001:41d0::/32 IPv6}
			PTR	`mail.fablemail.com`
		A	51.38.101.252^{🇫🇷 OVH51.38.0.0/16}
			PTR	`mail.fablemail.com`
SOA	`ns-master.crossroad-networks.com`hostmaster@crossroad-networks.com 2025-04-09 #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=1776213428

Subdomains

webserver1.rabbitsystems.de

Same first word

rabbitsystems.de

DNS History

4 records (4 active, 0 former)

●NSns-master.crossroad-networks.com2026-02-16 → 2026-04-15 · 2 obs

● 2026-02-16 16:46:50
● 2026-04-15 00:39:28

●NSns-slave.crossroad-networks.com2026-02-16 → 2026-04-15 · 2 obs

● 2026-02-16 16:46:50
● 2026-04-15 00:39:28

●MXmail.fablemail.com2026-02-16 → 2026-04-15 · 2 obs

● 2026-02-16 16:46:50
● 2026-04-15 00:39:28

●A51.38.101.2482026-02-16 → 2026-04-15 · 2 obs

● 2026-02-16 16:46:50
● 2026-04-15 00:39:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
rabbitsystems.de	ns-slave.crossroad-networks.com, ns-master.crossroad-networks.com	-

✅ Authoritative Response

Server:51.38.101.242

NS records: ns-slave.crossroad-networks.com, ns-master.crossroad-networks.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rabbitsystems.de (unsigned zone)

⏱️ Timing

Total: 2969ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.38.101.248`
NS	2	`ns-master.crossroad-networks.com, ns-slave.crossroad-networks.com`
MX	1	`mail.fablemail.com (pri: 10)`
SOA	1	`ns-master.crossroad-networks.com hostmas`

Analysis

Hierarchy

webserver1.rabbitsystems.de has rabbitsystems.de as its parent.

IP Addresses

rabbitsystems.de maps to IP address 51.38.101.248.

Other host names for instance webserver1.rabbitsystems.de and rabbit-systems.com share IP numbers with rabbitsystems.de.

Name Servers

Two name servers ns-master.crossroad-networks.com and ns-slave.crossroad-networks.com are delegated to rabbitsystems.de.

rabbitsystems.de uses the same name server configuration as other domains, such as msos.de, rabano.de, gitarrengalerie.de, rotocentrum.de and shacras.de.

rabbitsystems.de at least partially shares name servers with other domains such as ravensbrook.de, rabbit-systems.de, kolumnoid.de, fablemail.com and crossroad-networks.com.

these name servers are commonly used with the name servers ns-slave2.crossroad-networks.com.

Host names with two IPs:

ns-master.crossroad-networks.com points to 2604:a880:800:10::1b:a001 and 104.131.50.35.

ns-slave.crossroad-networks.com points to 2001:41d0:723:9f00::201 and 51.38.101.242.

Mail Servers

rabbitsystems.de is handled by a single mail server, mail.fablemail.com.

The mail server setup for rabbitsystems.de matches that of other domains, for instance fablemail.com.

Host name mail.fablemail.com points to IPs 2001:41d0:723:9f00::202 and 51.38.101.252.

rabbitsystems.de - robtex.com