irbbuch.de - robtex.com
irbbuch.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 129.233.84.2🇩🇪 Fraunhofer-Cluster-BW129.233.0.0/17 FHG-Stuttgart-1 | ||||||
| PTR | www.bookshop.fraunhofer.de | ||||||
| NS | ns2.fraunhofer.de ⭐ | ||||||
| A | 2a03:db80:4420:b000::53:1🇩🇪 Fraunhofer-Cluster-BW2a03:db80:4420::/48 Fraunhofer-NOC-Main-Site-Intranet | ||||||
| PTR | ns2.fraunhofer.de | ||||||
| A | 153.96.1.1🇩🇪 Fraunhofer-Cluster-BW153.96.0.0/21 FhG NOC 0-7 | ||||||
| PTR | ns2.fraunhofer.de | ||||||
| NS | ns1.fraunhofer.de | ||||||
| A | 2a03:db80:3004:d212::53:1🇩🇪 DFN2a03:db80::/32 FHG | ||||||
| PTR | ns1.fraunhofer.de | ||||||
| A | 192.44.37.1🇩🇪 DFN192.44.37.0/24 FHG-NOC-FRA | ||||||
| PTR | ns1.fraunhofer.de | ||||||
| NS | ns3.fraunhofer.de | ||||||
| A | 2a03:db80:0:d200::53:1🇩🇪 DFN2a03:db80::/32 FHG | ||||||
| PTR | ns3.fraunhofer.de | ||||||
| A | 153.96.87.2🇩🇪 DFN153.96.0.0/15 FhG-TOP-Netz | ||||||
| PTR | ns3.fraunhofer.de | ||||||
| NS | ns5.fraunhofer.de | ||||||
| A | 2a03:db80:1504:d267::53:1🇩🇪 DFN2a03:db80::/32 FHG | ||||||
| PTR | ns5.fraunhofer.de | ||||||
| A | 192.102.167.2🇩🇪 DFN192.102.167.0/24 FhG-Netz-192.102.167.0-24 | ||||||
| PTR | ns5.fraunhofer.de | ||||||
| SOA | ns2.fraunhofer.deservicedesk@fraunhofer.de 2019-09-11 #20 | ||||||
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=1775241275 | ||||||
Subdomains
www.irbbuch.de |
Same first word
irbbuch.de |
Similar names
DNS History
7 records (5 active, 2 former)
○NScnso.izs.fraunhofer.de2015-08-01 → 2017-10-13 · 4 obs
● 2017-10-13 08:48:48
○ 2026-03-14 00:52:10
○ 2026-04-03 18:42:40
●NSns1.fraunhofer.de2015-08-01 → 2026-04-03 · 2 obs
● 2026-04-03 18:42:40
●NSns2.fraunhofer.de2015-08-01 → 2026-04-03 · 2 obs
● 2026-04-03 18:42:40
●NSns3.fraunhofer.de2015-08-01 → 2026-04-03 · 2 obs
● 2026-04-03 18:42:40
●NSns5.fraunhofer.de2015-08-01 → 2026-04-03 · 2 obs
● 2026-04-03 18:42:40
●A129.233.84.22026-03-14 → 2026-04-03 · 3 obs
● 2026-03-14 00:52:10
● 2026-04-03 18:42:40
○A153.97.4.2542015-08-01 → 2017-10-13 · 4 obs
● 2017-10-13 08:48:48
○ 2026-03-14 00:52:10
○ 2026-04-03 18:42:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| irbbuch.de | ns5.fraunhofer.de, ns1.fraunhofer.de, ns2.fraunhofer.de, ns3.fraunhofer.de | 8 records |
✅ Authoritative Response
Server:153.96.87.2
NS records: ns5.fraunhofer.de, ns1.fraunhofer.de, ns2.fraunhofer.de, ns3.fraunhofer.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for irbbuch.de (unsigned zone)
⏱️ Timing
Total: 722ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 129.233.84.2 |
| NS | 4 | ns2.fraunhofer.de, ns3.fraunhofer.de... |
| SOA | 1 | ns2.fraunhofer.de servicedesk.fraunhofer |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns5.fraunhofer.de, ns3.fraunhofer.de, ns2.fraunhofer.de...)
Analysis
Hierarchy
The parent of www.irbbuch.de is irbbuch.de.
IP Addresses
irbbuch.de points to a single IP number: 129.233.84.2.
Other host names, for instance derbausv.de, baufachinformation.de, irbdirekt.de, bauenplus.de and rswb.de share IP numbers with irbbuch.de.
Name Servers
irbbuch.de is delegated to four name servers: ns1.fraunhofer.de, ns2.fraunhofer.de, ns3.fraunhofer.de and ns5.fraunhofer.de.
irbbuch.de shares name servers with other domains at least partially, for instance fkie.fraunhofer.de, ise-module.de, building-integrated-pv.org, mikroenergietechnik.de and 98.88.192.in-addr.arpa.
these name servers are commonly used with ns1.ise.fraunhofer.de, ns2.ise.fraunhofer.de, ns.ise.fraunhofer.de, ns.iis.fraunhofer.de, ns.iese.de, ns.iese.fraunhofer.de and ns.iml.fhg.de.
Host names with two IP numbers:
ns1.fraunhofer.de resolves to 2a03:db80:3004:d212::53:1 and 192.44.37.1.
ns2.fraunhofer.de resolves to 2a03:db80:4420:b000::53:1 and 153.96.1.1.
ns3.fraunhofer.de resolves to 2a03:db80:0:d200::53:1 and 153.96.87.2.
ns5.fraunhofer.de resolves to 2a03:db80:1504:d267::53:1 and 192.102.167.2.