structuralengineering.de - dns.ninja
structuralengineering.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 141.57.5.215🇩🇪 DFN141.57.0.0/16 THLHP | ||||||
| PTR | cms5.rz.htwk-leipzig.de | ||||||
| NS | dns01.htwk-leipzig.de ⭐ | ||||||
| A | 141.57.1.219🇩🇪 DFN141.57.0.0/16 THLHP | ||||||
| PTR | dns01.htwk-leipzig.de | ||||||
| NS | dns-3.dfn.de | ||||||
| A | 2001:638:d:b103::1🇩🇪 DFN2001:638::/32 -V6-AGG1 | ||||||
| PTR | dns-3.dfn.de | ||||||
| A | 193.174.75.58🇩🇪 DFN193.174.0.0/15 -AGG-1 | ||||||
| PTR | dns-3.dfn.de | ||||||
| NS | dns02.htwk-leipzig.de | ||||||
| A | 141.57.1.220🇩🇪 DFN141.57.0.0/16 THLHP | ||||||
| PTR | dns02.htwk-leipzig.de | ||||||
| MX | a1271.mx.srv.dfn.de ⭐ | ||||||
| A | 194.95.232.65🇩🇪 DFN194.94.0.0/15 | ||||||
| PTR | a1271.mx.srv.dfn.de | ||||||
| MX | b1271.mx.srv.dfn.de ⭐ | ||||||
| A | 194.95.234.65🇩🇪 DFN194.94.0.0/15 | ||||||
| PTR | b1271.mx.srv.dfn.de | ||||||
| MX | c1271.mx.srv.dfn.de ⭐ | ||||||
| A | 194.95.238.65🇩🇪 DFN194.94.0.0/15 | ||||||
| PTR | c1271.mx.srv.dfn.de | ||||||
| TXT | HARICA-9RAkEnFzw3fqYBOmXOQ | ||||||
| SOA | dns01.htwk-leipzig.densmaster@htwk-leipzig.de 2017-01-11 #28 | ||||||
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=1781184896 | ||||||
Same first word
Similar names
DNS History
12 records (7 active, 5 former)
●NSdns-3.dfn.de2026-03-18 → 2026-06-11 · 3 obs
● 2026-03-18 21:46:40
● 2026-06-11 13:54:20
●NSdns01.htwk-leipzig.de2015-08-08 → 2026-06-11 · 2 obs
● 2026-06-11 13:54:20
●NSdns02.htwk-leipzig.de2015-08-08 → 2026-06-11 · 2 obs
● 2026-06-11 13:54:20
○NSws-kar1.win-ip.dfn.de2015-08-08 → 2017-04-19 · 4 obs
● 2017-04-19 10:38:44
○ 2026-03-18 21:46:40
○ 2026-06-11 13:54:20
●MXa1271.mx.srv.dfn.de2026-03-18 → 2026-06-11 · 3 obs
● 2026-03-18 21:46:40
● 2026-06-11 13:54:20
●MXb1271.mx.srv.dfn.de2026-03-18 → 2026-06-11 · 3 obs
● 2026-03-18 21:46:40
● 2026-06-11 13:54:20
●MXc1271.mx.srv.dfn.de2026-03-18 → 2026-06-11 · 3 obs
● 2026-03-18 21:46:40
● 2026-06-11 13:54:20
○MXmfilter-127-1-1.mx.srv.dfn.de2015-08-08 → 2017-04-19 · 4 obs
● 2017-04-19 10:38:44
○ 2026-03-18 21:46:40
○ 2026-06-11 13:54:20
○MXmfilter-127-1-2.mx.srv.dfn.de2015-08-08 → 2017-04-19 · 4 obs
● 2017-04-19 10:38:44
○ 2026-03-18 21:46:40
○ 2026-06-11 13:54:20
○MXmfilter-127-1-3.mx.srv.dfn.de2015-08-08 → 2017-04-19 · 4 obs
● 2017-04-19 10:38:44
○ 2026-03-18 21:46:40
○ 2026-06-11 13:54:20
○A141.57.5.2132015-08-08 → 2017-04-19 · 4 obs
● 2017-04-19 10:38:44
○ 2026-03-18 21:46:40
○ 2026-06-11 13:54:20
●A141.57.5.2152026-03-18 → 2026-06-11 · 3 obs
● 2026-03-18 21:46:40
● 2026-06-11 13:54:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| structuralengineering.de | dns02.htwk-leipzig.de, dns01.htwk-leipzig.de, dns-3.dfn.de | 2 records |
✅ Authoritative Response
Server:141.57.1.219
NS records: dns02.htwk-leipzig.de, dns01.htwk-leipzig.de, dns-3.dfn.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for structuralengineering.de (unsigned zone)
⏱️ Timing
Total: 1758ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 141.57.5.215 |
| NS | 3 | dns-3.dfn.de, dns02.htwk-leipzig.de... |
| MX | 3 | b1271.mx.srv.dfn.de (pri: 10), c1271.mx.srv.dfn.de (pri: 10)... |
| TXT | 1 | HARICA-9RAkEnFzw3fqYBOmXOQ |
| SOA | 1 | dns01.htwk-leipzig.de nsmaster.htwk-leip |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns02.htwk-leipzig.de, dns01.htwk-leipzig.de)
Analysis
IP Addresses
structuralengineering.de points to a single IP number: 141.57.5.215.
Additional host names — www.verlagsherstellung.de, istt.htwk-leipzig.de, htwk-alumni.de and two others — share IP numbers with structuralengineering.de.
Name Servers
DNS for structuralengineering.de is handled by three authoritative name servers: dns-3.dfn.de, dns01.htwk-leipzig.de and dns02.htwk-leipzig.de.
structuralengineering.de shares at least some of its name servers with other domains, including agdsn.tu-dresden.de, wh2.tu-dresden.de, 101.20.141.in-addr.arpa and two others.
These name servers are frequently seen alongside dns-1.dfn.de, dns-2.dfn.de, deneb.dfn.de and 7 other name servers.
Host names with two IP numbers:
dns-3.dfn.de has two IP addresses: 193.174.75.58 and 2001:638:d:b103::1.
Host names with one IP number:
dns01.htwk-leipzig.de directs to 141.57.1.219.
dns02.htwk-leipzig.de directs to 141.57.1.220.
Mail Servers
structuralengineering.de is handled by three mail servers: a1271.mx.srv.dfn.de, b1271.mx.srv.dfn.de and c1271.mx.srv.dfn.de.
structuralengineering.de shares mail servers — at least in part — with other domains, including verlagsherstellung.de, mail.htwk-leipzig.de, wiwi.htwk-leipzig.de and two others.
a1271.mx.srv.dfn.de, b1271.mx.srv.dfn.de and c1271.mx.srv.dfn.de all have one IP address each — a1271.mx.srv.dfn.de directs to 194.95.232.65, b1271.mx.srv.dfn.de directs to 194.95.234.65 and c1271.mx.srv.dfn.de directs to 194.95.238.65.