opensourcelearning.de - robtex.com
opensourcelearning.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=1790194677 | ||||||
Same first word
opensourcelearning.xyz |
opensourcelearning.org |
opensourcelearning.com |
opensourcelearning.de |
opensourcelearning.co.uk |
opensourcelearning.ca |
opensourcelearning.net |
Similar names
Previous names
Next names
DNS History
7 records (7 active, 0 former)
●NSroot-dns.netcup.net2026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●NSsecond-dns.netcup.net2026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●NSthird-dns.netcup.net2026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●MXmail.opensourcelearning.de2026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●MXmx2e2d.netcup.net2026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●A2a03:4000:30:c006::14:98822026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
●A91.204.46.432026-08-29 → 2026-09-23 · 2 obs
● 2026-09-23 20:41:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| opensourcelearning.de | root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net | - |
✅ Authoritative Response
Server:37.221.199.199
NS records: root-dns.netcup.net, third-dns.netcup.net, second-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opensourcelearning.de (unsigned zone)
⏱️ Timing
Total: 1301ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.204.46.43 |
| AAAA | 1 | 2a03:4000:30:c006::14:9882 |
| NS | 3 | second-dns.netcup.net, root-dns.netcup.net... |
| MX | 2 | mail.opensourcelearning.de (pri: 10), mx2e2d.netcup.net (pri: 50) |
| TXT | 2 | google-site-verification=pKLupJVx6s9Y_fw, v=spf1 mx a include:_spf.webhosting.syst |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
IP Addresses
opensourcelearning.de directs to two IP numbers, 91.204.46.43 and 2a03:4000:30:c006::14:9882
handundpfote-lohfelden.de, mtzcichy.de, mynet.de and two other host names share IP numbers with opensourcelearning.de.
Name Servers
opensourcelearning.de is delegated to three name servers: root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
opensourcelearning.de shares at least some of its name servers with other domains, including peterknabe.com, canapemix.com, renate-strohm.de and two others.
root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net each resolve to two IP addresses: root-dns.netcup.net resolves to 46.38.225.225 and 2a03:4000:0:1::e1e1; second-dns.netcup.net resolves to 37.221.199.199 and 2a03:4000:2:24b::c7c7; third-dns.netcup.net resolves to 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
Mail for opensourcelearning.de is handled by two mail servers — mail.opensourcelearning.de and mx2e2d.netcup.net.
opensourcelearning.de has at least partial mail server overlap with other domains such as erlebnisfuehrungen-frankfurt.de, afriboomcrowd.com, opsedi.de and two more.
Hostnames that resolve to two IP addresses:
mx2e2d.netcup.net points to 91.204.46.45 and 2a03:4000:0:3ad:4809:eeff:fe57:f839.
Hosts with just one IP address:
mail.opensourcelearning.de points to 91.204.46.45.
mx2e2d.netcup.net and mail.opensourcelearning.de are host names that each point to 91.204.46.45 IP addresses.