impro.schule - dns.ninja

`impro.schule`

DNSSEC	⚠️ Not signed
A	2001:8d8:100f:f000::29f^{🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910}
		PTR	`2001-08d8-100f-f000-0000-0000-0000-029f.elastic-ssl.ui-r.com`
A	217.160.0.140^{🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3}
NS	`ns-de.1and1-dns.de` ⭐
		A	2607:f1c0:fe:53:185:132:32:1^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns-de.1and1-dns.de`
		A	185.132.32.1^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-de.1and1-dns.de`
NS	`ns-de.1and1-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5101:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.biz`
		A	217.160.81.1^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.biz`
NS	`ns-de.1and1-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5201:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.com`
		A	217.160.82.1^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.com`
NS	`ns-de.1and1-dns.org`
		A	2001:8d8:fe:53:0:d9a0:5301:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.org`
		A	217.160.83.1^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-de.1and1-dns.org`
MX	`impro-schule.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::4^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00204.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::10^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-dbapr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	52.101.68.5^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du2pr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
SOA	`ns-de.1and1-dns.de`hostmaster@kundenserver.de 2016-11-09 #20

`schule`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.schule` ⭐
	NS	`v0n1.nic.schule`
	NS	`v0n2.nic.schule`
	NS	`v0n3.nic.schule`
	NS	`v2n0.nic.schule`
	NS	`v2n1.nic.schule`
	SOA	`v0n0.nic.schule`hostmaster@donuts.email serial=1783691210

Same first word

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omirp.it

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DNS History

13 records (7 active, 6 former)

●NSns-de.1and1-dns.biz2016-12-10 → 2026-07-10 · 2 obs

● 2016-12-10 21:29:42
● 2026-07-10 14:44:38

●NSns-de.1and1-dns.com2016-12-10 → 2026-07-10 · 2 obs

● 2016-12-10 21:29:42
● 2026-07-10 14:44:38

●NSns-de.1and1-dns.de2016-12-10 → 2026-07-10 · 2 obs

● 2016-12-10 21:29:42
● 2026-07-10 14:44:38

●NSns-de.1and1-dns.org2016-12-10 → 2026-07-10 · 2 obs

● 2016-12-10 21:29:42
● 2026-07-10 14:44:38

●MXimpro-schule.mail.protection.outlook.com2026-02-20 → 2026-07-10 · 3 obs

○ 2017-12-19 21:17:26
● 2026-02-20 07:25:14
● 2026-07-10 14:44:38

○MXmx00.emig.kundenserver.de2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 21:29:42
○ 2017-12-19 21:17:26
○ 2026-07-10 14:44:38

○MXmx00.kundenserver.de2017-12-19 → 2017-12-19 · 4 obs

○ 2016-12-10 21:29:42
● 2017-12-19 21:17:26
○ 2026-02-20 07:25:14
○ 2026-07-10 14:44:38

○MXmx01.emig.kundenserver.de2016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 21:29:42
○ 2017-12-19 21:17:26
○ 2026-07-10 14:44:38

○MXmx01.kundenserver.de2017-12-19 → 2017-12-19 · 4 obs

○ 2016-12-10 21:29:42
● 2017-12-19 21:17:26
○ 2026-02-20 07:25:14
○ 2026-07-10 14:44:38

○A2001:8d8:1001:400c:fe94:7f3c:2a18:88452016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 21:29:42
○ 2017-12-19 21:17:26
○ 2026-07-10 14:44:38

●A2001:8d8:100f:f000::29f2017-12-19 → 2026-07-10 · 3 obs

○ 2016-12-10 21:29:42
● 2017-12-19 21:17:26
● 2026-07-10 14:44:38

●A217.160.0.1402017-12-19 → 2026-07-10 · 3 obs

○ 2016-12-10 21:29:42
● 2017-12-19 21:17:26
● 2026-07-10 14:44:38

○A217.160.122.2282016-12-10 → 2016-12-10 · 3 obs

● 2016-12-10 21:29:42
○ 2017-12-19 21:17:26
○ 2026-07-10 14:44:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
schule	v0n3.nic.schule, v0n2.nic.schule, v2n1.nic.schule, v0n0.nic.schule...	12 records
impro.schule	ns-de.1and1-dns.org, ns-de.1and1-dns.biz, ns-de.1and1-dns.de, ns-de.1and1-dns.com	-

✅ Authoritative Response

Server:217.160.82.1

NS records: ns-de.1and1-dns.org, ns-de.1and1-dns.biz, ns-de.1and1-dns.de, ns-de.1and1-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for impro.schule (unsigned zone)

⏱️ Timing

Total: 731ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.160.0.140`
AAAA	1	`2001:8d8:100f:f000::29f`
NS	4	`ns-de.1and1-dns.de, ns-de.1and1-dns.com...`
MX	1	`impro-schule.mail.protection.outlook.com`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns-de.1and1-dns.de hostmaster.kundenserv`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.schule, v0n1.nic.schule, v0n2.nic.schule...)

Analysis

IP Addresses

impro.schule points to the IP addresses 217.160.0.140 and 2001:8d8:100f:f000::29f

karamanis.de, erc-shop.de, www.norbert-dunker.de plus two other host names have IP numbers in common with impro.schule.

Name Servers

Four name servers handle the delegation for impro.schule: ns-de.1and1-dns.biz, ns-de.1and1-dns.com, ns-de.1and1-dns.de and ns-de.1and1-dns.org.

There is at least partial name server overlap between impro.schule and other domains — biokreis.bio, ecg.services, jlporteous.com and two more among them.

All four hostnames — ns-de.1and1-dns.biz, ns-de.1and1-dns.com, ns-de.1and1-dns.de and ns-de.1and1-dns.org — resolve to two IP numbers apiece: ns-de.1and1-dns.biz to 217.160.81.1 and 2001:8d8:fe:53:0:d9a0:5101:100; ns-de.1and1-dns.com to 217.160.82.1 and 2001:8d8:fe:53:0:d9a0:5201:100; ns-de.1and1-dns.de to 185.132.32.1 and 2607:f1c0:fe:53:185:132:32:1; ns-de.1and1-dns.org to 217.160.83.1 and 2001:8d8:fe:53:0:d9a0:5301:100.

Mail Servers

impro.schule uses one mail server — impro-schule.mail.protection.outlook.com.

impro-schule.mail.protection.outlook.com has 8 IP addresses: 52.101.68.5, 52.101.73.4, 52.101.73.12 plus 5 more.