learnforge.de - robtex.com
learnforge.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.99.13.137🇩🇪 Hetzner91.99.0.0/16 HETZNER-DC | ||||||
| PTR | mail.learnforge.de | ||||||
| NS | hydrogen.ns.hetzner.com ⭐ | ||||||
| A | 2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| A | 213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | hydrogen.ns.hetzner.com | ||||||
| NS | helium.ns.hetzner.de | ||||||
| A | 2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| A | 193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | helium.ns.hetzner.de | ||||||
| NS | oxygen.ns.hetzner.com | ||||||
| A | 2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| A | 88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4 | ||||||
| PTR | oxygen.ns.hetzner.com | ||||||
| MX | mail.learnforge.de ⭐ | ||||||
| A | 2a01:4f8:c014:db47::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.learnforge.de | ||||||
| A | 91.99.13.137🇩🇪 Hetzner91.99.0.0/16 HETZNER-DC | ||||||
| PTR | mail.learnforge.de | ||||||
| TXT | v=spf1 ip4:91.99.13.137 mx ~all | ||||||
| SOA | hydrogen.ns.hetzner.comdns@hetzner.com 2026-02-05 #0 | ||||||
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=1774371291 | ||||||
Subdomains
mail.learnforge.de |
Same first word
Similar names
greenflora.net |
loganfreer.com |
floragreen.net |
leanfroger.com |
greenflora.com |
floragreen.co.uk |
greenflora.com.br |
floragreen.de |
DNS History
12 records (5 active, 7 former)
●NShelium.ns.hetzner.de2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 11:20:26
● 2026-03-24 17:19:12
●NShydrogen.ns.hetzner.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 11:20:26
● 2026-03-24 17:19:12
○NSns.udag.de2015-11-10 → 2016-08-08 · 5 obs
● 2015-11-10 17:09:18
● 2016-08-08 05:23:28
○ 2026-03-24 11:20:26
○ 2026-03-24 17:19:12
○NSns.udag.net2015-11-10 → 2016-08-08 · 5 obs
● 2015-11-10 17:09:18
● 2016-08-08 05:23:28
○ 2026-03-24 11:20:26
○ 2026-03-24 17:19:12
○NSns.udag.org2015-11-10 → 2016-08-08 · 5 obs
● 2015-11-10 17:09:18
● 2016-08-08 05:23:28
○ 2026-03-24 11:20:26
○ 2026-03-24 17:19:12
○NSns.udagdns.de2015-06-29 → 2015-06-29 · 3 obs
○ 2015-11-10 17:09:18
○ 2026-03-24 17:19:12
○NSns.udagdns.net2015-06-29 → 2015-06-29 · 3 obs
○ 2015-11-10 17:09:18
○ 2026-03-24 17:19:12
●NSoxygen.ns.hetzner.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 11:20:26
● 2026-03-24 17:19:12
●MXmail.learnforge.de2015-06-29 → 2026-03-24 · 2 obs
● 2026-03-24 17:19:12
○MXmx20.learnforge.de2016-08-08 → 2016-08-08 · 4 obs
● 2016-08-08 05:23:28
○ 2026-03-24 11:20:26
○ 2026-03-24 17:19:12
○A78.46.125.892015-06-29 → 2016-08-08 · 4 obs
● 2016-08-08 05:23:28
○ 2026-03-24 11:20:26
○ 2026-03-24 17:19:12
●A91.99.13.1372026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 11:20:26
● 2026-03-24 17:19:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| learnforge.de | helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com | - |
✅ Authoritative Response
Server:213.133.100.98
NS records: helium.ns.hetzner.de, oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for learnforge.de (unsigned zone)
⏱️ Timing
Total: 1280ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.99.13.137 |
| NS | 3 | oxygen.ns.hetzner.com, helium.ns.hetzner.de... |
| MX | 1 | mail.learnforge.de (pri: 10) |
| TXT | 1 | v=spf1 ip4:91.99.13.137 mx ~all |
| SOA | 1 | hydrogen.ns.hetzner.com dns.hetzner.com |
Analysis
Hierarchy
learnforge.de is a parent of mail.learnforge.de.
IP Addresses
learnforge.de points to a single IP address: 91.99.13.137.
Other host names such as relay-in6.yukthi.net, static.137.13.99.91.clients.your-server.de and mail.learnforge.de share IP numbers with learnforge.de.
Name Servers
learnforge.de is delegated to three name servers: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
At least part of the name servers for learnforge.de are shared with other domains, for instance xn--kltepfennig-l8a.de, le-is.de, siegfanz.de, paripassu.de and larsmueller.net.
These name servers are commonly used alongside the name servers ns1.first-ns.de.
Host names with two IP numbers:
hydrogen.ns.hetzner.com points to 2a01:4f8:0:1::add:1098 and 213.133.100.98
oxygen.ns.hetzner.com points to 2a01:4f8:0:1::add:2992 and 88.198.229.192
helium.ns.hetzner.de points to 2001:67c:192c::add:5 and 193.47.99.5
Mail Servers
The mail server for learnforge.de is mail.learnforge.de.
learnforge.de shares the same mail server setup as other domains, for instance stoeffer.de.
Hostname mail.learnforge.de resolves to two IPs: 2a01:4f8:c014:db47::1 and 91.99.13.137.