`schulkalender.de`

DNSSEC	⚠️ Not signed
A	144.91.79.216^{🇩🇪 CONTABO144.91.78.0/23}
		PTR	`vmd183806.contaboserver.net`
NS	`nsa8.schlundtech.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:227^{🇺🇸 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-stec.ui-dns.com`
		A	185.132.34.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.com`
NS	`nsb8.schlundtech.de`
		A	2607:f1c0:fe:53:185:132:35:227^{🇺🇸 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-stec.ui-dns.org`
		A	185.132.35.227^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns-stec.ui-dns.org`
NS	`nsc8.schlundtech.de`
		A	2001:8d8:fe:53:217:160:80:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
		A	217.160.80.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.de`
NS	`nsd8.schlundtech.de`
		A	2001:8d8:fe:53:217:160:81:227^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
		A	217.160.81.227^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns-stec.ui-dns.biz`
SOA	`nsa8.schlundtech.de`holzmann@spread-blue.de 2025-11-14 #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=1774622670

schulkalender.org

schulkalender.ch

schulkalender.at

schulkalender.de

schulkalender.com

7 records (5 active, 2 former)

●NSnsa8.schlundtech.de2015-07-09 → 2026-03-27 · 2 obs

● 2015-07-09 17:27:06
● 2026-03-27 15:12:14

●NSnsb8.schlundtech.de2015-07-09 → 2026-03-27 · 2 obs

● 2015-07-09 17:27:06
● 2026-03-27 15:12:14

●NSnsc8.schlundtech.de2015-07-09 → 2026-03-27 · 2 obs

● 2015-07-09 17:27:06
● 2026-03-27 15:12:14

●NSnsd8.schlundtech.de2015-07-09 → 2026-03-27 · 2 obs

● 2015-07-09 17:27:06
● 2026-03-27 15:12:14

●A144.91.79.2162026-02-20 → 2026-03-27 · 3 obs

○ 2017-04-06 08:23:56
● 2026-02-20 01:01:40
● 2026-03-27 15:12:14

○A80.86.91.1752015-07-09 → 2016-03-06 · 4 obs

● 2015-07-09 17:27:06
● 2016-03-06 21:23:36
○ 2016-07-16 05:32:34
○ 2026-03-27 15:12:14

○A85.25.193.1302016-07-16 → 2017-04-06 · 5 obs

○ 2016-03-06 21:23:36
● 2016-07-16 05:32:34
● 2017-04-06 08:23:56
○ 2026-02-20 01:01:40
○ 2026-03-27 15:12:14

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
schulkalender.de	nsa8.schlundtech.de, nsd8.schlundtech.de, nsc8.schlundtech.de, nsb8.schlundtech.de	-

Server:217.160.80.227

NS records: nsa8.schlundtech.de, nsd8.schlundtech.de, nsc8.schlundtech.de, nsb8.schlundtech.de

⚠️ Insecure (no DNSSEC)

No DS record for schulkalender.de (unsigned zone)

Total: 891ms | Queries: -

Type	Count	Sample Data
A	1	`144.91.79.216`
NS	4	`nsd8.schlundtech.de, nsa8.schlundtech.de...`
SOA	1	`nsa8.schlundtech.de holzmann.spread-blue`

schulkalender.de points to a single IP: 144.91.79.216.

Other host names, for instance ilpiccolino.de, schulpostkarte.de, schuldatenbank.de, schoolcard.de and domainbook.de share IP numbers with schulkalender.de.

schulkalender.de's delegation is handled by four name servers: nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de and nsd8.schlundtech.de.

schulkalender.de partially shares name servers with other domains; examples include rocar-remscheid.de, innofocus.net, xn--smebrse-d1a.info, immo-dk.de and j3b.eu.