openaccessblog.org - robtex.com
openaccessblog.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns00.hbz-nrw.de ⭐ | ||||||
| A | 193.30.112.100🇩🇪 DFN193.30.112.0/24 HBZNET | ||||||
| NS | dns1.uni-koeln.de | ||||||
| A | 2a00:a200:0:56::53🇩🇪 UNI-KOELN2a00:a200::/29 | ||||||
| PTR | ib-lfi-2.rrz.uni-koeln.de | ||||||
| A | 134.95.44.35🇩🇪 UNI-KOELN134.95.0.0/16 | ||||||
| PTR | ib-lfi-2.rrz.uni-koeln.de | ||||||
| NS | nse03.hbz-nrw.de | ||||||
| A | 193.30.112.3🇩🇪 DFN193.30.112.0/24 HBZNET | ||||||
| NS | nse04.hbz-nrw.de | ||||||
| A | 193.30.112.4🇩🇪 DFN193.30.112.0/24 HBZNET | ||||||
| PTR | nse04.hbz-nrw.de | ||||||
| SOA | ns00.hbz-nrw.deunix@hbz-nrw.de 2021-03-19 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1774494798 | ||||||
Same first word
openaccessblog.net |
openaccessblog.com |
openaccessblog.org |
DNS History
5 records (4 active, 1 former)
●NSdns1.uni-koeln.de2026-03-13 → 2026-03-26 · 3 obs
● 2026-03-13 23:20:58
● 2026-03-26 03:32:20
○NSnoc2.rrz.uni-koeln.de2015-08-03 → 2020-02-08 · 4 obs
● 2020-02-08 04:02:46
○ 2026-03-13 23:20:58
○ 2026-03-26 03:32:20
●NSns00.hbz-nrw.de2015-08-03 → 2026-03-26 · 2 obs
● 2026-03-26 03:32:20
●NSnse03.hbz-nrw.de2015-08-03 → 2026-03-26 · 2 obs
● 2026-03-26 03:32:20
●NSnse04.hbz-nrw.de2015-08-03 → 2026-03-26 · 2 obs
● 2026-03-26 03:32:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| openaccessblog.org | dns1.uni-koeln.de, nse04.hbz-nrw.de, nse03.hbz-nrw.de | - |
✅ Authoritative Response
Server:134.95.44.35
NS records: dns1.uni-koeln.de, nse04.hbz-nrw.de, nse03.hbz-nrw.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openaccessblog.org (unsigned zone)
⏱️ Timing
Total: 873ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | dns1.uni-koeln.de, nse03.hbz-nrw.de... |
| SOA | 1 | ns00.hbz-nrw.de unix.hbz-nrw.de |
Analysis
Name Servers
openaccessblog.org is delegated to four name servers: ns00.hbz-nrw.de, nse03.hbz-nrw.de, nse04.hbz-nrw.de and dns1.uni-koeln.de.
openaccessblog.org at least partially shares name servers with other domains, for instance 212.70.129.in-addr.arpa, enhe.eu, th-koeln.de, brains-minds-media.org and swib.org.
These name servers are commonly used with noc2.rrz.uni-koeln.de, ns1.uni-bielefeld.de, ns1.physik.uni-bielefeld.de, ns2.physik.uni-bielefeld.de, dns1.belwue.de, dns3.belwue.de, auth0.dns.cebitec.uni-bielefeld.de, auth0.dns.techfak.uni-bielefeld.de and waldorf.cs.uni-dortmund.de.
Host names with two IP numbers:
dns1.uni-koeln.de points to: 2a00:a200:0:56::53 and 134.95.44.35.
Host names with one IP number:
ns00.hbz-nrw.de points to: 193.30.112.100.
nse03.hbz-nrw.de points to: 193.30.112.3.
nse04.hbz-nrw.de points to: 193.30.112.4.