`learninggrammar.de`

DNSSEC	⚠️ Not signed
A	162.55.80.47^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
		PTR	`xenon.lernserver.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	`mail.learninggrammar.de` ⭐
		A	162.55.80.47^{🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC}
			PTR	`xenon.lernserver.de`
SOA	`ns1.first-ns.de`dns@hetzner.com 2026-02-11 #0

`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=1774928634

Subdomains

mail.learninggrammar.de

Same first word

learninggrammar.net

learninggrammar.de

Similar names

grammarlearning.org

grammarlearning.com

DNS History

7 records (5 active, 2 former)

●NSns1.first-ns.de2015-08-06 → 2026-03-31 · 2 obs

● 2015-08-06 00:08:32
● 2026-03-31 04:09:44

●NSrobotns2.second-ns.de2015-08-06 → 2026-03-31 · 2 obs

● 2015-08-06 00:08:32
● 2026-03-31 04:09:44

●NSrobotns3.second-ns.com2015-08-06 → 2026-03-31 · 2 obs

● 2015-08-06 00:08:32
● 2026-03-31 04:09:44

●MXmail.learninggrammar.de2015-08-06 → 2026-03-31 · 2 obs

● 2015-08-06 00:08:32
● 2026-03-31 04:09:44

●A162.55.80.472026-03-30 → 2026-03-31 · 3 obs

○ 2020-03-26 21:44:26
● 2026-03-30 16:41:00
● 2026-03-31 04:09:44

○A5.9.108.1472015-08-06 → 2017-03-21 · 4 obs

● 2015-08-06 00:08:32
● 2017-03-21 07:47:50
○ 2020-03-26 21:44:26
○ 2026-03-31 04:09:44

○A5.9.17.1642020-03-26 → 2020-03-26 · 4 obs

○ 2017-03-21 07:47:50
● 2020-03-26 21:44:26
○ 2026-03-30 16:41:00
○ 2026-03-31 04:09:44

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:213.133.100.103

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learninggrammar.de (unsigned zone)

⏱️ Timing

Total: 1201ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.55.80.47`
NS	3	`robotns2.second-ns.de, robotns3.second-ns.com...`
MX	1	`mail.learninggrammar.de (pri: 10)`
SOA	1	`ns1.first-ns.de dns.hetzner.com`

Analysis

Hierarchy

learninggrammar.de is a parent of mail.learninggrammar.de.

IP Addresses

learninggrammar.de points to a single IP number: 162.55.80.47.

Other host names, for instance www.lernserver.de, xenon.lernserver.de, lernserver.de, webmail.lernserver.de and ltwc.de share IP numbers with learninggrammar.de.

Name Servers

The delegation for learninggrammar.de is handled by three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

learninggrammar.de at least partially shares name servers with other domains, for instance bluetongue.com, sv-eintracht-dolberg.de, onoca.de, evolutionen.de and watch-bands-straps-bracelets.com.

these name servers are commonly used with hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

Two IP numbers per host:

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

learninggrammar.de is handled by a single mail server, mail.learninggrammar.de.

mail.learninggrammar.de points to a single IP: 162.55.80.47.

learninggrammar.de - robtex.com