leancon.de - dns.ninja
leancon.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 213.133.103.136🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | static.213-133-103-136.clients.your-server.de | ||||||
| NS | ns1.first-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| MX | mail.leancon.de ⭐ | ||||||
| A | 213.133.103.136🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | static.213-133-103-136.clients.your-server.de | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2026-04-14 #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=1782624608 | ||||||
Subdomains
mail.leancon.de |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.first-ns.de2015-07-13 → 2026-06-28 · 2 obs
● 2026-06-28 05:53:56
●NSrobotns2.second-ns.de2015-07-13 → 2026-06-28 · 2 obs
● 2026-06-28 05:53:56
●NSrobotns3.second-ns.com2015-07-13 → 2026-06-28 · 2 obs
● 2026-06-28 05:53:56
●MXmail.leancon.de2015-07-13 → 2026-06-28 · 2 obs
● 2026-06-28 05:53:56
●A213.133.103.1362015-07-13 → 2026-06-28 · 2 obs
● 2026-06-28 05:53:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| leancon.de | robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de | - |
✅ Authoritative Response
Server:213.133.100.103
NS records: robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for leancon.de (unsigned zone)
⏱️ Timing
Total: 1506ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.133.103.136 |
| NS | 3 | ns1.first-ns.de, robotns2.second-ns.de... |
| MX | 1 | mail.leancon.de (pri: 10) |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
mail.leancon.de is a subdomain of leancon.de.
IP Addresses
leancon.de directs to one IP number, which is 213.133.103.136.
Among the host names that share IP numbers with leancon.de are mail.leancon.de, mail.karlsruhe-durlach.de, static.213-133-103-136.clients.your-server.de and two others.
Name Servers
leancon.de has three name servers — robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
The name servers of leancon.de overlap at least partially with those of other domains — among them a2-blog.de, al-mad.de, leseaufbau.de and two more.
These name servers commonly appear in combination with the name servers ns.gehirnpfirsich.de.
Each of robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de points to two IP numbers. robotns3.second-ns.com points to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de points to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de points to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2.
Mail Servers
leancon.de routes its mail through a single mail server, mail.leancon.de.
mail.leancon.de points to one IP number — 213.133.103.136.