`excelschulung.com`

DNSSEC	⚠️ Not signed
A	5.44.111.67^{🇩🇪 ONE-NETWORK5.44.108.0/22}
		PTR	`web87.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 2026-02-15 #2

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774664172

Subdomains

mail.excelschulung.com

Same first word

excelschulung.com

DNS History

8 records (6 active, 2 former)

●NScns1.alfahosting.info2017-12-21 → 2026-03-28 · 2 obs

● 2017-12-21 23:30:18
● 2026-03-28 02:20:04

●NScns2.alfahosting.info2017-12-21 → 2026-03-28 · 2 obs

● 2017-12-21 23:30:18
● 2026-03-28 02:20:04

●NScns3.alfahosting.info2017-12-21 → 2026-03-28 · 2 obs

● 2017-12-21 23:30:18
● 2026-03-28 02:20:04

○MXmail.excelschulung.com2017-12-21 → 2017-12-21 · 3 obs

● 2017-12-21 23:30:18
○ 2026-03-06 04:44:46
○ 2026-03-28 02:20:04

●MXmx03.secure-mailgate.com2026-03-06 → 2026-03-28 · 3 obs

○ 2017-12-21 23:30:18
● 2026-03-06 04:44:46
● 2026-03-28 02:20:04

●MXmx04.secure-mailgate.com2026-03-06 → 2026-03-28 · 3 obs

○ 2017-12-21 23:30:18
● 2026-03-06 04:44:46
● 2026-03-28 02:20:04

○A109.237.140.62017-12-21 → 2017-12-21 · 3 obs

● 2017-12-21 23:30:18
○ 2026-03-06 04:44:46
○ 2026-03-28 02:20:04

●A5.44.111.672026-03-06 → 2026-03-28 · 3 obs

○ 2017-12-21 23:30:18
● 2026-03-06 04:44:46
● 2026-03-28 02:20:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...	-
excelschulung.com	cns3.alfahosting.info, cns2.alfahosting.info, cns1.alfahosting.info	-

✅ Authoritative Response

Server:109.237.142.8

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for excelschulung.com (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.44.111.67`
NS	3	`cns2.alfahosting.info, cns3.alfahosting.info...`
MX	2	`mx04.secure-mailgate.com (pri: 10), mx03.secure-mailgate.com (pri: 10)`
SOA	1	`cns1.alfahosting.info hostmaster@alfahos`

Analysis

Hierarchy

The parent of mail.excelschulung.com is excelschulung.com.

IP Addresses

excelschulung.com points to an IP address: 5.44.111.67.

other host names include sopack.de, exonity.com, mail.christusgemeinde-wernigerode.de, hommel-solar.de and taschenlust.com; they share IP numbers with excelschulung.com.

Name Servers

excelschulung.com is delegated to three name servers cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.

excelschulung.com at least partially shares name servers with other domains, for instance sapas.de, fbs-warendorf.de, oralmed.de, schuetzenverein-resse.de and oekologisches-netzwerk-uslar.de.

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

excelschulung.com is handled by two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.

excelschulung.com uses the same mail server setup as other domains, for instance mittelpunkt-des-universums.de, sports-watch.de, feuerwehr-etting.de, energydesign.me and marien-schulen.de.

Host names with two IP numbers:

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

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

excelschulung.com - robtex.com