bueroklass.de - robtex.com
bueroklass.de
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=1776284710 | ||||||
Subdomains
mail.bueroklass.de |
Similar names
DNS History
8 records (6 active, 2 former)
●NScns1.alfahosting.info2015-05-28 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:44
●NScns2.alfahosting.info2015-05-28 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:44
●NScns3.alfahosting.info2015-05-28 → 2026-04-15 · 2 obs
● 2026-04-15 20:31:44
○MXmail.bueroklass.de2015-05-28 → 2020-01-13 · 4 obs
● 2020-01-13 18:01:48
○ 2026-04-15 20:31:40
○ 2026-04-15 20:31:44
●MXmx03.secure-mailgate.com2026-04-15 → 2026-04-15 · 3 obs
● 2026-04-15 20:31:40
● 2026-04-15 20:31:44
●MXmx04.secure-mailgate.com2026-04-15 → 2026-04-15 · 3 obs
● 2026-04-15 20:31:40
● 2026-04-15 20:31:44
○A109.237.132.302015-05-28 → 2020-01-13 · 4 obs
● 2020-01-13 18:01:48
○ 2026-04-15 20:31:40
○ 2026-04-15 20:31:44
●A81.88.34.102026-04-15 → 2026-04-15 · 3 obs
● 2026-04-15 20:31:40
● 2026-04-15 20:31:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| bueroklass.de | cns1.alfahosting.info, cns3.alfahosting.info, cns2.alfahosting.info | - |
✅ Authoritative Response
Server:148.251.254.105
NS records: cns1.alfahosting.info, cns3.alfahosting.info, cns2.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bueroklass.de (unsigned zone)
⏱️ Timing
Total: 4137ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.10 |
| NS | 3 | cns2.alfahosting.info, cns1.alfahosting.info... |
| MX | 2 | mx03.secure-mailgate.com (pri: 10), mx04.secure-mailgate.com (pri: 10) |
| TXT | 1 | v=spf1 a mx include:secure-mailgate.com |
| SOA | 1 | cns1.alfahosting.info hostmaster.alfahos |
Analysis
Hierarchy
bueroklass.de is the parent of mail.bueroklass.de.
IP Addresses
bueroklass.de resolves to a single IP: 81.88.34.10.
Other host names, for instance mail.efsoftware.com, mail.in-music.org, mail.venice2015.com, mail.apprego.de and andi-d.de share IP numbers with bueroklass.de.
Name Servers
bueroklass.de delegates to three name servers: cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
bueroklass.de shares some name servers with other domains, for example tv-nothaft.de, kino-astoria.de, altarkerzen.com, hybridverlag.de and wohnmobile-verkaufen.de.
Host names with two IP numbers:
cns1.alfahosting.info: 2a01:64c0:0:5000::8 and 109.237.142.8
cns2.alfahosting.info: 2a01:4f8:2b02:a88::105 and 148.251.254.105
cns3.alfahosting.info: 2a02:2b80:101:5000::8 and 109.237.143.8
Mail Servers
bueroklass.de is served by two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.
bueroklass.de shares the mail server setup with other domains, for example schmuckberaterin.info, dj-murat.de, amfin-consulting.de, fischer-hosting.de and serial-loss-insurance.net.
bueroklass.de shares mail servers with other domains at least partially, for example nrw-forum.de, harderlogistic.com, exs.de and solargeno.de.
Host names with three IPs:
The host name mx03.secure-mailgate.com points to: 46.243.88.174, 46.243.88.176 and 46.243.95.180.
The host name mx04.secure-mailgate.com points to: 46.243.88.175, 46.243.88.177 and 46.243.95.180.
Host names pointing to 46.243.95.180: mx03.secure-mailgate.com and mx04.secure-mailgate.com.