usability-know-how.de - robtex.com
usability-know-how.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=1774567517 | ||||||
Same first word
usability-know-how.de |
DNS History
10 records (7 active, 3 former)
●NSdns.dns1.de2015-10-22 → 2026-03-26 · 3 obs
● 2015-10-22 22:22:10
● 2026-03-26 23:46:34
●NSdns.dns2.de2015-10-22 → 2026-03-26 · 3 obs
● 2015-10-22 22:22:10
● 2026-03-26 23:46:34
●NSdns.dns3.de2015-10-22 → 2026-03-26 · 3 obs
● 2015-10-22 22:22:10
● 2026-03-26 23:46:34
●NSdns.dns4.de2015-10-22 → 2026-03-26 · 3 obs
● 2015-10-22 22:22:10
● 2026-03-26 23:46:34
○NSns-ffm.web-arts.de2015-06-04 → 2015-06-04 · 3 obs
○ 2015-10-22 22:22:10
○ 2026-03-26 23:46:34
○NSns.web-arts-ag.de2015-06-04 → 2015-06-04 · 3 obs
○ 2015-10-22 22:22:10
○ 2026-03-26 23:46:34
○NSns.web-arts.de2015-06-04 → 2015-06-04 · 3 obs
○ 2015-10-22 22:22:10
○ 2026-03-26 23:46:34
●MXmail-domu.web-arts.de2015-06-04 → 2026-03-26 · 2 obs
● 2026-03-26 23:46:34
●MXmail-ffm.web-arts.de2015-06-04 → 2026-03-26 · 2 obs
● 2026-03-26 23:46:34
●A217.69.162.1832015-06-04 → 2026-03-26 · 2 obs
● 2026-03-26 23:46:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| usability-know-how.de | dns.dns4.de, dns.dns3.de, dns.dns1.de, dns.dns2.de | - |
✅ Authoritative Response
Server:144.76.91.137
NS records: dns.dns4.de, dns.dns3.de, dns.dns1.de, dns.dns2.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for usability-know-how.de (unsigned zone)
⏱️ Timing
Total: 3481ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.69.162.183 |
| NS | 4 | dns.dns2.de, dns.dns4.de... |
| MX | 2 | mail-ffm.web-arts.de (pri: 10), mail-domu.web-arts.de (pri: 20) |
| SOA | 1 | dns.dns1.de hostmaster.internetwire.de |
Analysis
IP Addresses
usability-know-how.de points to IP number: 217.69.162.183.
Other host names such as strategie-consulting.de, e-commerce-strategie.de, united-a.de, usability-fachwissen.de and sohogrand.de share IPs with usability-know-how.de.
Name Servers
usability-know-how.de is delegated to four name servers: dns.dns1.de, dns.dns2.de, dns.dns3.de and dns.dns4.de.
usability-know-how.de at least partially shares name servers with other domains, for instance kahnfahrten-luebben.de, weiz.org, cbz.es, event-moser.at and rhein-main.media.
Host names with two IP numbers: dns.dns1.de points to 2a02:2940:0:a0d1::246 and 95.130.16.246; dns.dns2.de points to 2a02:2940:0:a0d2::218 and 95.130.17.218; dns.dns3.de points to 2a00:11c0:e:766::2 and 217.146.22.194; dns.dns4.de points to 2a01:4f8:192:2187::2 and 144.76.91.137.
Mail Servers
usability-know-how.de is handled by two mail servers: mail-domu.web-arts.de and mail-ffm.web-arts.de.
The mail server setup for usability-know-how.de matches that of other domains, for instance usability-fachwissen.de, ecommercecockpit.de, ecommerce-cockpit.de, usability-lexikon.de and nobile-deutschland.net.
usability-know-how.de shares at least partially some mail servers with other domains, including strategie-consulting.de, e-commerce-strategie.de, united-a.de, sohogrand.de and gui-konzept.de.
these mail servers are commonly used with mailserv.web-arts.de and mail-fdorf.web-arts.de.
Host names with two IP numbers:
mail-domu.web-arts.de points to 2a00:1169:103:8d30:: and 92.205.52.244.
Host names with one IP number:
mail-ffm.web-arts.de points to 217.69.162.183.