`schule-blumenthal.de`

DNSSEC	⚠️ Not signed
A	5.44.111.23^{🇩🇪 ONE-NETWORK5.44.108.0/22}
		PTR	`web48.alfahosting-server.de`
NS	`cns1.alfahosting.info` ⭐
		A	2a01:64c0:0:5000::8^{🇩🇪 CLOUDPIT2a01:64c0::/32}
			PTR	`cns1.cloudpit.de`
		A	109.237.142.8^{🇩🇪 CLOUDPIT109.237.128.0/20}
			PTR	`cns1.cloudpit.de`
NS	`cns2.alfahosting.info`
		A	2a01:4f8:2b02:a88::105^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
			PTR	`cns2.cloudpit.com`
		A	148.251.254.105^{🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2}
			PTR	`cns2.cloudpit.com`
NS	`cns3.alfahosting.info`
		A	2a02:2b80:101:5000::8^{🇩🇪 CLOUDPIT2a02:2b80:101::/48}
			PTR	`cns3.cloudpit.io`
		A	109.237.143.8^{🇩🇪 CLOUDPIT109.237.128.0/20}
			PTR	`cns3.cloudpit.io`
MX	`mx03.secure-mailgate.com` ⭐
		A	46.243.88.174^{🇩🇪 CLOUDPIT46.243.88.0/21}
			PTR	`node03.secure-mailgate.com`
		A	46.243.88.176^{🇩🇪 CLOUDPIT46.243.88.0/21}
			PTR	`node04.secure-mailgate.com`
MX	`mx04.secure-mailgate.com` ⭐
		A	46.243.88.175^{🇩🇪 CLOUDPIT46.243.88.0/21}
			PTR	`node03.secure-mailgate.com`
		A	46.243.88.177^{🇩🇪 CLOUDPIT46.243.88.0/21}
			PTR	`node04.secure-mailgate.com`
SOA	`cns1.alfahosting.info`hostmaster@alfahosting@de 2026-03-20 #2

`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=1777019979

Same first word

schule-blumenthal.de

DNS History

10 records (6 active, 4 former)

●NScns1.alfahosting.info2026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

●NScns2.alfahosting.info2026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

●NScns3.alfahosting.info2026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

○NSns01.1blu.de2015-06-06 → 2017-08-20 · 3 obs

● 2015-06-06 03:08:58
● 2017-08-20 20:07:42
○ 2026-04-24 09:02:20

○NSns02.1blu.de2015-06-06 → 2017-08-20 · 3 obs

● 2015-06-06 03:08:58
● 2017-08-20 20:07:42
○ 2026-04-24 09:02:20

○MXmail.schule-blumenthal.de2015-06-06 → 2017-08-20 · 3 obs

● 2015-06-06 03:08:58
● 2017-08-20 20:07:42
○ 2026-04-24 09:02:20

●MXmx03.secure-mailgate.com2026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

●MXmx04.secure-mailgate.com2026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

○A178.254.10.1552015-06-06 → 2017-08-20 · 3 obs

● 2015-06-06 03:08:58
● 2017-08-20 20:07:42
○ 2026-04-24 09:02:20

●A5.44.111.232026-04-24 → 2026-04-24 · 2 obs

○ 2017-08-20 20:07:42
● 2026-04-24 09:02:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	f.nic.de, z.nic.de, a.nic.de	-
schule-blumenthal.de	cns3.alfahosting.info, cns1.alfahosting.info, cns2.alfahosting.info	-

✅ Authoritative Response

Server:148.251.254.105

NS records: cns3.alfahosting.info, cns1.alfahosting.info, cns2.alfahosting.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schule-blumenthal.de (unsigned zone)

⏱️ Timing

Total: 959ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.44.111.23`
NS	3	`cns2.alfahosting.info, cns1.alfahosting.info...`
MX	2	`mx03.secure-mailgate.com (pri: 10), mx04.secure-mailgate.com (pri: 10)`
SOA	1	`cns1.alfahosting.info hostmaster@alfahos`

Analysis

IP Addresses

schule-blumenthal.de points to a single IP number: 5.44.111.23.

Other host names, for instance et-rental.de, mail.superdata.de, mail.sadomaso.boutique, mail.rethen-leine.de and www.csdhalle.de share IP numbers with schule-blumenthal.de.

Name Servers

The domain schule-blumenthal.de is delegated to three name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.

schule-blumenthal.de shares name servers with other domains at least partially, for instance vierpm.com, isard.eu, hindelang-software.de, zurbelit.net and certocloud.com.

Host names with two IP numbers:

cns1.alfahosting.info points to 2a01:64c0:0:5000::8 and 109.237.142.8

cns2.alfahosting.info points to 2a01:4f8:2b02:a88::105 and 148.251.254.105

cns3.alfahosting.info points to 2a02:2b80:101:5000::8 and 109.237.143.8

Mail Servers

schule-blumenthal.de is handled by two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.

schule-blumenthal.de shares the same mail server setup as other domains, including benjaminmoritz.de, c4d4u.one, diwop.de, karaokeplay.de and conaglio.de.

Host names with two IP numbers:

The host mx03.secure-mailgate.com points to 46.243.88.174 and 46.243.88.176.

The host mx04.secure-mailgate.com points to 46.243.88.175 and 46.243.88.177.

schule-blumenthal.de - robtex.com