gu-network.de - robtex.com
gu-network.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=1774626461 | ||||||
Subdomains
mail.gu-network.de |
Same first word
gu-network.de |
DNS History
8 records (6 active, 2 former)
●NScns1.alfahosting.info2015-05-05 → 2026-03-27 · 2 obs
● 2026-03-27 15:58:52
●NScns2.alfahosting.info2015-05-05 → 2026-03-27 · 2 obs
● 2026-03-27 15:58:52
●NScns3.alfahosting.info2015-05-05 → 2026-03-27 · 2 obs
● 2026-03-27 15:58:52
○MXmail.gu-network.de2015-05-05 → 2020-04-13 · 4 obs
● 2020-04-13 10:24:20
○ 2026-03-07 08:21:10
○ 2026-03-27 15:58:52
●MXmx03.secure-mailgate.com2026-03-07 → 2026-03-27 · 3 obs
● 2026-03-07 08:21:10
● 2026-03-27 15:58:52
●MXmx04.secure-mailgate.com2026-03-07 → 2026-03-27 · 3 obs
● 2026-03-07 08:21:10
● 2026-03-27 15:58:52
○A109.237.140.422015-05-05 → 2020-04-13 · 4 obs
● 2020-04-13 10:24:20
○ 2026-03-07 08:21:10
○ 2026-03-27 15:58:52
●A81.88.34.1762026-03-07 → 2026-03-27 · 3 obs
● 2026-03-07 08:21:10
● 2026-03-27 15:58:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| gu-network.de | cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info | - |
✅ Authoritative Response
Server:109.237.143.8
NS records: cns1.alfahosting.info, cns2.alfahosting.info, cns3.alfahosting.info
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gu-network.de (unsigned zone)
⏱️ Timing
Total: 1231ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.88.34.176 |
| NS | 3 | cns3.alfahosting.info, cns1.alfahosting.info... |
| MX | 2 | mx04.secure-mailgate.com (pri: 10), mx03.secure-mailgate.com (pri: 10) |
| TXT | 1 | v=spf1 a mx include:secure-mailgate.com |
| SOA | 1 | cns1.alfahosting.info hostmaster.alfahos |
Analysis
Hierarchy
The parent of mail.gu-network.de is gu-network.de.
IP Addresses
gu-network.de points to an IP address: 81.88.34.176.
other host names include biophysik.de, barracuda.theater-feuervogel.de, mail.musikverein-hohenroth.de, gs-weyer.de and mb-service24.de; they share IP numbers with gu-network.de.
Name Servers
gu-network.de is delegated to three name servers cns1.alfahosting.info, cns2.alfahosting.info and cns3.alfahosting.info.
gu-network.de at least partially shares name servers with other domains, for instance 6rang.info, tiroler-delikatessen.de, korneliamertes.com, hannes-hamann.de and einbaukuechenrostock.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
gu-network.de is handled by two mail servers: mx03.secure-mailgate.com and mx04.secure-mailgate.com.
gu-network.de uses the same mail server setup as other domains, for instance bearhands.de, kreisi.de, graffiticlean.de, franzke-sicherheit.com and gut-bedacht.com.
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.