lernserver.de - dns.ninja

`lernserver.de`

DNSSEC	⚠️ Not signed
A	2a01:4f8:271:1010::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		PTR	`xenon.lernserver.de`
A	162.55.80.47^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
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	`mail.lernserver.de` ⭐
		A	162.55.80.47^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`xenon.lernserver.de`
TXT	`google-site-verification=yCjz9oAoDMWuhdnWtBvP4N31mr4zyRzrf5E0aG32X1U`
TXT	`stripe-verification=f75df3922c86fa50abf2a18a0b73f9b8ca2102edf13142613c8e16c04...`
TXT	`v=spf1 +a +mx a:xenon.lernserver.de a:argon.lernserver.de a:portal.lernserver...`
TXT	`ZOOM_verify_4y1x0YbbmgyAIQJvaoiJWr`
TXT	`brevo-code:7f3f881678330c0c5f81f4e05dabb3ae`
SOA	`ns1.first-ns.de`dns@hetzner.com 2026-05-23 #7

`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=1786179809

Subdomains

mail.lernserver.de

lssrv3.lernserver.de

ls2.lernserver.de

media.lernserver.de

www.lernserver.de

xenon.lernserver.de

webmail.lernserver.de

Same first word

lernserver.de

lernserver.com

lernserver.at

DNS History

9 records (6 active, 3 former)

●NSns1.first-ns.de2015-07-17 → 2026-08-08 · 2 obs

● 2015-07-17 10:48:12
● 2026-08-08 09:30:46

●NSrobotns2.second-ns.de2015-07-17 → 2026-08-08 · 2 obs

● 2015-07-17 10:48:12
● 2026-08-08 09:30:46

●NSrobotns3.second-ns.com2015-07-17 → 2026-08-08 · 2 obs

● 2015-07-17 10:48:12
● 2026-08-08 09:30:46

●MXmail.lernserver.de2026-03-23 → 2026-08-08 · 3 obs

○ 2017-12-23 15:44:42
● 2026-03-23 15:47:30
● 2026-08-08 09:30:46

○MXwebmail.lernserver.de2015-07-17 → 2017-12-23 · 4 obs

● 2015-07-17 10:48:12
● 2017-12-23 15:44:42
○ 2026-03-23 15:47:30
○ 2026-08-08 09:30:46

●A162.55.80.472026-03-23 → 2026-08-08 · 3 obs

○ 2017-12-23 15:44:42
● 2026-03-23 15:47:30
● 2026-08-08 09:30:46

●A2a01:4f8:271:1010::22026-03-23 → 2026-08-08 · 3 obs

○ 2017-12-23 15:44:42
● 2026-03-23 15:47:30
● 2026-08-08 09:30:46

○A5.9.108.1472015-07-17 → 2016-12-30 · 4 obs

● 2015-07-17 10:48:12
● 2016-12-30 06:05:18
○ 2017-12-23 15:44:42
○ 2026-08-08 09:30:46

○A5.9.17.1642017-12-23 → 2017-12-23 · 4 obs

○ 2016-12-30 06:05:18
● 2017-12-23 15:44:42
○ 2026-03-23 15:47:30
○ 2026-08-08 09:30:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	z.nic.de, a.nic.de, f.nic.de	-
lernserver.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 lernserver.de (unsigned zone)

⏱️ Timing

Total: 1373ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.55.80.47`
AAAA	1	`2a01:4f8:271:1010::2`
NS	3	`ns1.first-ns.de, robotns2.second-ns.de...`
MX	1	`mail.lernserver.de (pri: 10)`
TXT	5	`brevo-code:7f3f881678330c0c5f81f4e05dabb, google-site-verification=yCjz9oAoDMWuhdn...`
SOA	1	`ns1.first-ns.de dns.hetzner.com`

Analysis

Hierarchy

lernserver.de is the parent domain of mail.lernserver.de, lssrv3.lernserver.de, ls2.lernserver.de, media.lernserver.de, www.lernserver.de and a few other host names.

IP Addresses

lernserver.de directs to two IP numbers, 162.55.80.47 and 2a01:4f8:271:1010::2

mail.diskuss.de, lernserver.com, www.lernserver-shop.de and two other host names share IP numbers with lernserver.de.

Name Servers

Three name servers are authoritative for lernserver.de: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

lernserver.de shares at least some of its name servers with other domains, including tcm-foodadviser.com, av-test.org, csl-networks.de and two others.

robotns3.second-ns.com resolves to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de resolves to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de resolves to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2. All three hostnames point to two IP numbers each.

Mail Servers

Mail for lernserver.de is handled by a single mail server, mail.lernserver.de.

There is one IP number for mail.lernserver.de: 162.55.80.47.