openlearnware.de - dns.ninja
openlearnware.de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ans1.net.hrz.tu-darmstadt.de ⭐ | ||||||
| A | 2001:41b8:83f:22::61🇩🇪 MANDA2001:41b8::/29 DE-MANDA-20041108 since 2024-06-03 MANDA | ||||||
| PTR | ans1.net.hrz.tu-darmstadt.de | ||||||
| A | 130.83.22.61🇩🇪 MANDA130.83.0.0/16 TU-DARMSTADT via MANDA | ||||||
| PTR | ans1.net.hrz.tu-darmstadt.de | ||||||
| NS | ans2.net.hrz.tu-darmstadt.de | ||||||
| A | 2001:41b8:83f:56::61🇩🇪 MANDA2001:41b8::/29 DE-MANDA-20041108 since 2024-06-03 MANDA | ||||||
| PTR | ans2.net.hrz.tu-darmstadt.de | ||||||
| A | 130.83.56.61🇩🇪 MANDA130.83.0.0/16 TU-DARMSTADT via MANDA | ||||||
| PTR | ans2.net.hrz.tu-darmstadt.de | ||||||
| SOA | ans1.net.hrz.tu-darmstadt.dehostmaster@net.hrz.tu-darmstadt.de serial=1112506148 | ||||||
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=1785555898 | ||||||
Same first word
openlearnware.com |
openlearnware.org |
openlearnware.de |
DNS History
3 records (2 active, 1 former)
●NSans1.net.hrz.tu-darmstadt.de2018-05-06 → 2026-08-01 · 2 obs
● 2026-08-01 03:45:48
●NSans2.net.hrz.tu-darmstadt.de2018-05-06 → 2026-08-01 · 2 obs
● 2026-08-01 03:45:48
○A130.83.157.812018-05-06 → 2018-05-06 · 3 obs
○ 2026-03-28 04:02:52
○ 2026-08-01 03:45:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| openlearnware.de | ans2.net.hrz.tu-darmstadt.de, ans1.net.hrz.tu-darmstadt.de | 4 records |
✅ Authoritative Response
Server:130.83.56.61
NS records: ans2.net.hrz.tu-darmstadt.de, ans1.net.hrz.tu-darmstadt.de
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 727ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ans2.net.hrz.tu-darmstadt.de, ans1.net.hrz.tu-darmstadt.de |
| SOA | 1 | ans1.net.hrz.tu-darmstadt.de hostmaster. |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ans2.net.hrz.tu-darmstadt.de, ans1.net.hrz.tu-darmstadt.de, ans2.net.hrz.tu-darmstadt.de...)
Analysis
Name Servers
openlearnware.de is served by two delegated name servers, ans1.net.hrz.tu-darmstadt.de and ans2.net.hrz.tu-darmstadt.de.
openlearnware.de shares its NS records with other domains, for example wlans.net.hrz.tu-darmstadt.de, vwl.tu-darmstadt.de, 166.83.130.in-addr.arpa and two others.
At least some of openlearnware.de's name servers are shared with other domains, for example ukp.informatik.tu-darmstadt.de, 5.1.0.3.8.0.8.b.1.4.1.0.0.2.ip6.arpa, hrz.tu-darmstadt.de and two more.
These name servers tend to co-occur with dc01.ukp.informatik.tu-darmstadt.de, ns01.emergencity.de, ans3.net.hrz.tu-darmstadt.de and 3 other name servers in the same DNS delegations.
Each of the two host names carries two IP addresses: ans1.net.hrz.tu-darmstadt.de points to 130.83.22.61 and 2001:41b8:83f:22::61, and ans2.net.hrz.tu-darmstadt.de points to 130.83.56.61 and 2001:41b8:83f:56::61.