`sl-securemail.de`

DNSSEC	⚠️ Not signed
A	81.169.210.74^{🇩🇪 STRATO81.169.128.0/17 AG}
		PTR	`server.sl-securemail.de`
NS	`ns1.first-ns.de` ⭐
		A	2a01:4f8:0:a101::a:1^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`ns1.first-ns.de`
		A	213.239.242.238^{🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2}
			PTR	`ns1.first-ns.de`
NS	`robotns2.second-ns.de`
		A	2a01:4f8:0:1::5ddc:2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`robotns2.second-ns.de`
		A	213.133.100.103^{🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1}
			PTR	`robotns2.second-ns.de`
NS	`robotns3.second-ns.com`
		A	2001:67c:192c::add:a3^{🇩🇪 NORIS-NETWORK2001:67c:192c::/48}
			PTR	`robotns3.second-ns.com`
		A	193.47.99.3^{🇩🇪 NORIS-NETWORK193.47.99.0/24}
			PTR	`robotns3.second-ns.com`
MX	`server.sl-securemail.de` ⭐
		A	81.169.210.74^{🇩🇪 STRATO81.169.128.0/17 AG}
			PTR	`server.sl-securemail.de`
TXT	`google-site-verification=Cj2k3YDlmiaMlXzmOj90YcqIHwlvbSm_b3jBrhA3vWs`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.first-ns.de`dns@hetzner.com 2025-10-06 #5

`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=1774846096

Subdomains

server.sl-securemail.de

Same first word

sl-securemail.de

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
sl-securemail.de	ns1.first-ns.de, robotns3.second-ns.com, robotns2.second-ns.de	-

✅ Authoritative Response

Server:213.239.242.238

NS records: ns1.first-ns.de, robotns3.second-ns.com, robotns2.second-ns.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sl-securemail.de (unsigned zone)

⏱️ Timing

Total: 1237ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.210.74`
NS	3	`robotns2.second-ns.de, robotns3.second-ns.com...`
MX	1	`server.sl-securemail.de (pri: 10)`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=Cj2k3YDlmiaMlXz`
SOA	1	`ns1.first-ns.de dns.hetzner.com`

Analysis

Hierarchy

sl-securemail.de is the parent of server.sl-securemail.de.

IP Addresses

sl-securemail.de resolves to one IP number: 81.169.210.74.

Other host names such as server.sl-securemail.de and mohrs-sossenkuchen.de share IP numbers with sl-securemail.de.

Name Servers

sl-securemail.de is delegated to three name servers robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

sl-securemail.de at least partially shares name servers with other domains, for instance niamo.gr, satrent.de, gws-immo.at, itsimply.de and stahl-glas.de.

Host names with two IP numbers:

robotns3.second-ns.com points to: 2001:67c:192c::add:a3 and 193.47.99.3.

ns1.first-ns.de points to: 2a01:4f8:0:a101::a:1 and 213.239.242.238.

robotns2.second-ns.de points to: 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.

Mail Servers

sl-securemail.de is handled by a single mail server, server.sl-securemail.de.

sl-securemail.de shares the same mail server setup as other domains, for instance mohrs-sossenkuchen.de.

server.sl-securemail.de resolves to IP 81.169.210.74.

sl-securemail.de - robtex.com

sl-securemail.de

de