alumdo.de - robtex.com
alumdo.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.88.34.6🇩🇪 CLOUDPIT81.88.32.0/20 | ||||||
| PTR | host340.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.infohostmaster@alfahosting@de 2026-02-16 #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.dedns-operations@denic.de serial=1775965692 | ||||||
Same first word
alumdo.de |
Similar names
DNS History
12 records (6 active, 6 former)
●NScns1.alfahosting.info2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
●NScns2.alfahosting.info2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
●NScns3.alfahosting.info2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
○NSns.hostpoint.ch2015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
○NSns2.hostpoint.ch2015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
○NSns3.hostpoint.ch2015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
●MXmx03.secure-mailgate.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
●MXmx04.secure-mailgate.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
○MXmx1.mail.hostpoint.ch2015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
○MXmx2.mail.hostpoint.ch2015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
○A217.26.48.1012015-08-08 → 2017-02-11 · 4 obs
● 2017-02-11 19:12:36
○ 2020-04-12 04:48:14
○ 2026-04-12 03:52:40
●A81.88.34.62026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 22:59:54
● 2026-04-12 03:52:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| alumdo.de | cns3.alfahosting.info, cns1.alfahosting.info, cns2.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.142.8
NS records: cns3.alfahosting.info, cns1.alfahosting.info, cns2.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alumdo.de (unsigned zone)
⏱️ Timing
Total: 1098ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.6 |
| NS | 3 | cns3.alfahosting.info, cns1.alfahosting.info... |
| MX | 2 | mx04.secure-mailgate.com (pri: 10), mx03.secure-mailgate.com (pri: 10) |
| SOA | 1 | cns1.alfahosting.info hostmaster@alfahos |
Analysis
IP Addresses
alumdo.de points to a single IP address: 81.88.34.6.
Other host names such as saalerad.de, gesangsunterricht-koblenz.de, qq-fahrservice.net, avanxato.net and mail.kc-maikammer.de share IP numbers with alumdo.de.
Name Servers
alumdo.de is delegated to three name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
At least part of the name servers for alumdo.de are shared with other domains, for instance mopat.de, zitsch.org, boardgames101.com, glasbau-hahn.eu and upc-online.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
alumdo.de is handled by two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.
alumdo.de uses the same mail server setup as other domains, for instance heilundenergiearbeit.de, atzenroth.com, eufler.de, kotiteollisuus.com and biohazard-de.de.
Some mail servers are shared between alumdo.de and other domains, for instance werkberlin.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.