smartlearn.de - dns.ninja

`smartlearn.de`

DNSSEC	⚠️ Not signed
A	82.141.38.192^{🇩🇪 ONE-NETWORK82.141.0.0/18 KAMP Netzwerkdienste GmbH}
NS	`ns1.rrpproxy.net` ⭐
		A	2a04:2b00:14cc::226^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`ns1.rrpproxy.net`
		A	193.227.117.226^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
			PTR	`ns1.rrpproxy.net`
NS	`ns2.rrpproxy.net`
		A	2a04:2b00:14dd::226^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns2.rrpproxy.net`
		A	194.50.187.226^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
			PTR	`ns2.rrpproxy.net`
NS	`ns3.rrpproxy.net`
		A	2a04:2b00:14ee::226^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14ee::/48}
			PTR	`ns3.rrpproxy.net`
		A	194.0.182.226^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.0.182.0/24}
			PTR	`ns3.rrpproxy.net`
MX	`smartlearn-de.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca27::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::1^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	2a01:111:f403:ca2d::2^{🇩🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
		A	52.101.168.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-beup281cu00100.inbound.protection.outlook.com`
		A	52.101.170.0^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr5p281cu00500.inbound.protection.outlook.com`
		A	52.101.170.1^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr4p281cu03101.inbound.protection.outlook.com`
		A	52.101.170.2^{🇩🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-fr6p281cu00202.inbound.protection.outlook.com`
TXT	`MS=ms16561051`
TXT	`v=spf1 mx a:pxmail1.fernschulen-hh.de ip4:5.11.53.132 include:spf.protection....`
SOA	`ns1.rrpproxy.net`tech@rrpproxy.net 2025-12-14 #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=1786353415

Subdomains

campus.smartlearn.de

Same first word

smartlearn.info

smartlearn.eu

smartlearn.tech

smartlearn.pl

smartlearn.org

smartlearn.ru

smartlearn.app

smartlearn.ch

smartlearn.io

smartlearn.no

smartlearn.com

smartlearn.vu

smartlearn.de

smartlearn.gr

smartlearn.dk

Similar names

DNS History

9 records (5 active, 4 former)

○NSns01.de-punkt.de2015-07-16 → 2016-12-22 · 4 obs

● 2015-07-16 03:43:12
● 2016-12-22 13:53:36
○ 2026-02-23 13:00:46
○ 2026-08-10 09:43:40

●NSns1.rrpproxy.net2026-02-23 → 2026-08-10 · 3 obs

○ 2016-12-22 13:53:36
● 2026-02-23 13:00:46
● 2026-08-10 09:43:40

○NSns2.de-punkt.de2015-07-16 → 2016-12-22 · 4 obs

● 2015-07-16 03:43:12
● 2016-12-22 13:53:36
○ 2026-02-23 13:00:46
○ 2026-08-10 09:43:40

●NSns2.rrpproxy.net2026-02-23 → 2026-08-10 · 3 obs

○ 2016-12-22 13:53:36
● 2026-02-23 13:00:46
● 2026-08-10 09:43:40

●NSns3.rrpproxy.net2026-02-23 → 2026-08-10 · 3 obs

○ 2016-12-22 13:53:36
● 2026-02-23 13:00:46
● 2026-08-10 09:43:40

○MXmail.ils.de2015-07-16 → 2016-12-22 · 4 obs

● 2015-07-16 03:43:12
● 2016-12-22 13:53:36
○ 2026-02-23 13:00:46
○ 2026-08-10 09:43:40

●MXsmartlearn-de.mail.protection.outlook.com2026-02-23 → 2026-08-10 · 3 obs

○ 2016-12-22 13:53:36
● 2026-02-23 13:00:46
● 2026-08-10 09:43:40

●A82.141.38.1922026-02-23 → 2026-08-10 · 3 obs

○ 2016-12-22 13:53:36
● 2026-02-23 13:00:46
● 2026-08-10 09:43:40

○A95.130.252.1412015-07-16 → 2016-12-22 · 4 obs

● 2015-07-16 03:43:12
● 2016-12-22 13:53:36
○ 2026-02-23 13:00:46
○ 2026-08-10 09:43:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
smartlearn.de	ns3.rrpproxy.net, ns2.rrpproxy.net, ns1.rrpproxy.net	-

✅ Authoritative Response

Server:194.50.187.226

NS records: ns3.rrpproxy.net, ns2.rrpproxy.net, ns1.rrpproxy.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smartlearn.de (unsigned zone)

⏱️ Timing

Total: 599ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`82.141.38.192`
NS	3	`ns2.rrpproxy.net, ns3.rrpproxy.net...`
MX	1	`smartlearn-de.mail.protection.outlook.co`
TXT	2	`v=spf1 mx a:pxmail1.fernschulen-hh.de ip, MS=ms16561051`
SOA	1	`ns1.rrpproxy.net tech.rrpproxy.net`

Analysis

Hierarchy

campus.smartlearn.de is delegated beneath smartlearn.de.

IP Addresses

smartlearn.de has exactly one IP address — 82.141.38.192.

campus.smartlearn.de, smartlearn.info, onlinestudienzentrum.de plus two other host names have IP numbers in common with smartlearn.de.

Name Servers

smartlearn.de carries NS records delegating to ns1.rrpproxy.net, ns2.rrpproxy.net and ns3.rrpproxy.net.

There is at least partial name server overlap between smartlearn.de and other domains — whatismyip.ro, radonsensors.com, insospeso.it and two more among them.

These name servers tend to appear together with the name servers ns1.dnsres.net, ns2.dnsres.net and ns3.dnsres.net, plus two others.

ns1.rrpproxy.net, ns2.rrpproxy.net and ns3.rrpproxy.net are three hostnames that each resolve to a pair of IP addresses: ns1.rrpproxy.net to 193.227.117.226 and 2a04:2b00:14cc::226, ns2.rrpproxy.net to 194.50.187.226 and 2a04:2b00:14dd::226, and ns3.rrpproxy.net to 194.0.182.226 and 2a04:2b00:14ee::226.

Mail Servers

smartlearn.de uses one mail server — smartlearn-de.mail.protection.outlook.com.

smartlearn-de.mail.protection.outlook.com has 8 IP addresses: 52.101.168.0, 52.101.170.0, 52.101.170.1 plus 5 more.