schulzweb.de - dns.ninja

`schulzweb.de`

DNSSEC	⚠️ Not signed
A	81.88.36.23^{🇩🇪 CLOUDPIT81.88.32.0/20}
		PTR	`host123.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 2025-09-30 #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=1785805197

Subdomains

mail.schulzweb.de

Same first word

schulzweb.de

schulzweb.at

schulzweb.com

DNS History

8 records (6 active, 2 former)

●NScns1.alfahosting.info2015-06-30 → 2026-08-04 · 2 obs

● 2015-06-30 23:30:58
● 2026-08-04 01:00:56

●NScns2.alfahosting.info2015-06-30 → 2026-08-04 · 2 obs

● 2015-06-30 23:30:58
● 2026-08-04 01:00:56

●NScns3.alfahosting.info2015-06-30 → 2026-08-04 · 2 obs

● 2015-06-30 23:30:58
● 2026-08-04 01:00:56

○MXmail.schulzweb.de2015-06-30 → 2017-10-01 · 4 obs

● 2015-06-30 23:30:58
● 2017-10-01 14:00:52
○ 2026-02-15 09:16:06
○ 2026-08-04 01:00:56

●MXmx03.secure-mailgate.com2026-02-15 → 2026-08-04 · 3 obs

○ 2017-10-01 14:00:52
● 2026-02-15 09:16:06
● 2026-08-04 01:00:56

●MXmx04.secure-mailgate.com2026-02-15 → 2026-08-04 · 3 obs

○ 2017-10-01 14:00:52
● 2026-02-15 09:16:06
● 2026-08-04 01:00:56

○A109.237.134.102015-06-30 → 2017-10-01 · 4 obs

● 2015-06-30 23:30:58
● 2017-10-01 14:00:52
○ 2026-02-15 09:16:06
○ 2026-08-04 01:00:56

●A81.88.36.232026-02-15 → 2026-08-04 · 3 obs

○ 2017-10-01 14:00:52
● 2026-02-15 09:16:06
● 2026-08-04 01:00:56

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:109.237.142.8

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schulzweb.de (unsigned zone)

⏱️ Timing

Total: 766ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.88.36.23`
NS	3	`cns3.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

Hierarchy

schulzweb.de is the parent zone for mail.schulzweb.de.

IP Addresses

schulzweb.de directs to one IP number, which is 81.88.36.23.

Among the host names that share IP numbers with schulzweb.de are mail.das-stille-woertchen.de, mail.puppentheater-tops.de, mail.petershof.net and two others.

Name Servers

schulzweb.de is delegated to three name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.

schulzweb.de partially shares its NS delegation with several other domains, including sprayon.de, prodaba.ch, frsb.de and two others.

cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info each resolve to two IP addresses: cns1.alfahosting.info resolves to 109.237.142.8 and 2a01:64c0:0:5000::8; cns2.alfahosting.info resolves to 148.251.254.105 and 2a01:4f8:2b02:a88::105; cns3.alfahosting.info resolves to 109.237.143.8 and 2a02:2b80:101:5000::8.

Mail Servers

The MX records for schulzweb.de point to two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.

schulzweb.de has the same mail server arrangement as a number of other domains, for example huoneistohotelli.com, pharmaco.de, batz.at and two more.

mx03.secure-mailgate.com and mx04.secure-mailgate.com each resolve to two IP addresses: mx03.secure-mailgate.com points to 46.243.88.174 and 46.243.88.176, while mx04.secure-mailgate.com points to 46.243.88.175 and 46.243.88.177.