4layer.de - dns.ninja
4layer.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.88.34.37🇩🇪 CLOUDPIT81.88.32.0/20 | ||||||
| PTR | host252.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 2026-01-29 #1 | ||||||
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=1785101940 | ||||||
Subdomains
mail.4layer.de |
Same first word
Similar names
relay4.us |
relay4.com |
layer4.com.br |
layer4.nl |
layer4.info |
layer4.co.uk |
relay4.xyz |
layer4.de |
layer4.net |
4relay.net |
layer4.awsapps.com |
layer4.org |
layer4.jp |
layer4.com |
layer4.hk |
DNS History
8 records (6 active, 2 former)
●NScns1.alfahosting.info2015-08-04 → 2026-07-26 · 2 obs
● 2026-07-26 22:05:00
●NScns2.alfahosting.info2015-08-04 → 2026-07-26 · 2 obs
● 2026-07-26 22:05:00
●NScns3.alfahosting.info2015-08-04 → 2026-07-26 · 2 obs
● 2026-07-26 22:05:00
○MXmail.4layer.de2015-08-04 → 2017-03-15 · 4 obs
● 2017-03-15 15:46:52
○ 2026-03-11 14:57:44
○ 2026-07-26 22:05:00
●MXmx03.secure-mailgate.com2026-03-11 → 2026-07-26 · 3 obs
● 2026-03-11 14:57:44
● 2026-07-26 22:05:00
●MXmx04.secure-mailgate.com2026-03-11 → 2026-07-26 · 3 obs
● 2026-03-11 14:57:44
● 2026-07-26 22:05:00
○A109.237.134.322015-08-04 → 2017-03-15 · 4 obs
● 2017-03-15 15:46:52
○ 2026-03-11 14:57:44
○ 2026-07-26 22:05:00
●A81.88.34.372026-03-11 → 2026-07-26 · 3 obs
● 2026-03-11 14:57:44
● 2026-07-26 22:05:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| 4layer.de | cns1.alfahosting.info, cns3.alfahosting.info, cns2.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.142.8
NS records: cns1.alfahosting.info, cns3.alfahosting.info, cns2.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4layer.de (unsigned zone)
⏱️ Timing
Total: 913ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.37 |
| NS | 3 | cns2.alfahosting.info, cns3.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
The domain mail.4layer.de falls under the parent 4layer.de.
IP Addresses
4layer.de resolves to just one IP address, 81.88.34.37.
Two other host names, along with mail.bauconberlinkempfer.de, www.pocolico.de and mail.asc-breitenfelde.de, also share IP numbers with 4layer.de.
Name Servers
DNS for 4layer.de is handled by three authoritative name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
At least some of 4layer.de's name servers are shared with other domains, for example sc-roden.de, frysak.at, sfpd.de and two more.
Three hostnames — cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info — each have two IP addresses: cns1.alfahosting.info has 109.237.142.8 and 2a01:64c0:0:5000::8, cns2.alfahosting.info has 148.251.254.105 and 2a01:4f8:2b02:a88::105, and cns3.alfahosting.info has 109.237.143.8 and 2a02:2b80:101:5000::8.
Mail Servers
4layer.de is served by two mail servers, mx03.secure-mailgate.com and mx04.secure-mailgate.com.
Among the domains sharing a mail server setup with 4layer.de are haarindersuppe.com, dbolten.de, arens.es and two others.
4layer.de overlaps on mail servers with certain other domains, thonimara.de among them.
mx03.secure-mailgate.com directs to 46.243.88.174 and 46.243.88.176. mx04.secure-mailgate.com directs to 46.243.88.175 and 46.243.88.177. Each host name carries two IP addresses.