`schulsampling.de`

DNSSEC	⚠️ Not signed
A	89.22.114.71^{🇩🇪 ONE-NETWORK89.22.96.0/19}
		PTR	`cs48276.dogadoserver.de`
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 2023-04-03 #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=1777104271

Same first word

schulsampling.de

DNS History

7 records (5 active, 2 former)

●NSnsa8.schlundtech.de2015-08-23 → 2026-04-25 · 2 obs

● 2015-08-23 02:38:08
● 2026-04-25 08:07:32

●NSnsb8.schlundtech.de2015-08-23 → 2026-04-25 · 2 obs

● 2015-08-23 02:38:08
● 2026-04-25 08:07:32

●NSnsc8.schlundtech.de2015-08-23 → 2026-04-25 · 2 obs

● 2015-08-23 02:38:08
● 2026-04-25 08:07:32

●NSnsd8.schlundtech.de2015-08-23 → 2026-04-25 · 2 obs

● 2015-08-23 02:38:08
● 2026-04-25 08:07:32

○A81.20.133.252015-08-23 → 2016-03-17 · 4 obs

● 2015-08-23 02:38:08
● 2016-03-17 16:13:02
○ 2016-07-10 06:51:44
○ 2026-04-25 08:07:32

○A85.214.253.2472016-07-10 → 2017-07-07 · 5 obs

○ 2016-03-17 16:13:02
● 2016-07-10 06:51:44
● 2017-07-07 09:08:46
○ 2026-04-25 08:07:30
○ 2026-04-25 08:07:32

●A89.22.114.712026-04-25 → 2026-04-25 · 3 obs

○ 2017-07-07 09:08:46
● 2026-04-25 08:07:30
● 2026-04-25 08:07:32

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:185.132.35.227

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schulsampling.de (unsigned zone)

⏱️ Timing

Total: 2782ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.22.114.71`
NS	4	`nsc8.schlundtech.de, nsb8.schlundtech.de...`
SOA	1	`nsa8.schlundtech.de holzmann.spread-blue`

Analysis

IP Addresses

schulsampling.de resolves to one IP number: 89.22.114.71.

Other host names, for instance schulheft.com, spread-blue.at, unimarketing.at, berufsschulmarketing.at and schulheft.eu share IP numbers with schulsampling.de.

Name Servers

schulsampling.de delegates to four name servers: nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de and nsd8.schlundtech.de.

schulsampling.de at least partially shares name servers with other domains, including ulbico.de, cheatmore.com, 4nes.de, werkstatt-software.com and clubmaria.de.

These name servers are commonly used with k90588.update-edv.com.

Host names with two IP numbers: nsa8.schlundtech.de points to 2607:f1c0:fe:53:185:132:34:227 and 185.132.34.227; nsb8.schlundtech.de points to 2607:f1c0:fe:53:185:132:35:227 and 185.132.35.227; nsc8.schlundtech.de points to 2001:8d8:fe:53:217:160:80:227 and 217.160.80.227; nsd8.schlundtech.de points to 2001:8d8:fe:53:217:160:81:227 and 217.160.81.227.

schulsampling.de - robtex.com