libro.de - dns.ninja
libro.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.53.109.90🇦🇹 ANEXIA185.53.108.0/23 MTH Retail Services (Austria) GmbH AT - Vienna | ||||||
| NS | dns1.a1.net ⭐ | ||||||
| A | 2001:850:3030:31:80:120:17:26🇦🇹 A1TELEKOM-AT2001:850::/29 A1 Telekom Austria AG | ||||||
| PTR | dns1.a1.net | ||||||
| A | 80.120.17.26🇦🇹 A1TELEKOM-AT80.120.0.0/14 HIGHWAY194 | ||||||
| PTR | dns1.a1.net | ||||||
| NS | dns2.a1.net | ||||||
| A | 2001:67c:1bc::105🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast | ||||||
| PTR | dns2.a1.net | ||||||
| A | 2001:850:3010:101:213:33:99:79🇦🇹 A1TELEKOM-AT2001:850::/29 A1 Telekom Austria AG | ||||||
| PTR | dns2.a1.net | ||||||
| A | 192.174.68.105🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| PTR | dns2.a1.net | ||||||
| A | 213.33.99.79🇦🇹 A1TELEKOM-AT213.33.0.0/17 A1 Telekom Austria AG | ||||||
| PTR | dns2.a1.net | ||||||
| NS | dns3.a1.net | ||||||
| A | 2001:67c:10b8::105🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net | ||||||
| PTR | dns3.a1.net | ||||||
| A | 176.97.158.105🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| PTR | dns3.a1.net | ||||||
| MX | smx01.a1.net ⭐ | ||||||
| A | 80.75.42.227🇦🇹 A1TELEKOM-AT80.75.32.0/19 | ||||||
| PTR | smx01.a1.net | ||||||
| TXT | v=spf1 include:aspf.a1.net ~all | ||||||
| SOA | dns1.a1.netdomainadmin@a1.net 2024-03-27 #1 | ||||||
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=1785627347 | ||||||
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
●NSdns1.a1.net2026-03-26 → 2026-08-01 · 3 obs
● 2026-03-26 20:21:04
● 2026-08-01 23:43:58
●NSdns2.a1.net2026-03-26 → 2026-08-01 · 3 obs
● 2026-03-26 20:21:04
● 2026-08-01 23:43:58
●NSdns3.a1.net2026-03-26 → 2026-08-01 · 3 obs
● 2026-03-26 20:21:04
● 2026-08-01 23:43:58
○NSns.udag.de2015-11-20 → 2016-12-24 · 5 obs
● 2015-11-20 09:26:02
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
○NSns.udag.net2015-11-20 → 2016-12-24 · 5 obs
● 2015-11-20 09:26:02
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
○NSns.udag.org2015-11-20 → 2016-12-24 · 5 obs
● 2015-11-20 09:26:02
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
○NSns.udagdns.de2015-07-23 → 2015-07-23 · 3 obs
○ 2015-11-20 09:26:02
○ 2026-08-01 23:43:58
○NSns.udagdns.net2015-07-23 → 2015-07-23 · 3 obs
○ 2015-11-20 09:26:02
○ 2026-08-01 23:43:58
○MXmx-1.mail.dunkel.de2015-07-23 → 2016-12-24 · 4 obs
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
○MXmx-2.mail.dunkel.de2015-07-23 → 2016-12-24 · 4 obs
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
●MXsmx01.a1.net2026-03-26 → 2026-08-01 · 3 obs
● 2026-03-26 20:21:04
● 2026-08-01 23:43:58
●A185.53.109.902026-03-26 → 2026-08-01 · 3 obs
● 2026-03-26 20:21:04
● 2026-08-01 23:43:58
○A193.16.159.1992015-07-23 → 2016-12-24 · 4 obs
● 2016-12-24 00:11:28
○ 2026-03-26 20:21:04
○ 2026-08-01 23:43:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| libro.de | dns2.a1.net, dns3.a1.net, dns1.a1.net | - |
✅ Authoritative Response
Server:80.120.17.26
NS records: dns2.a1.net, dns3.a1.net, dns1.a1.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for libro.de (unsigned zone)
⏱️ Timing
Total: 1022ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.53.109.90 |
| NS | 3 | dns3.a1.net, dns1.a1.net... |
| MX | 1 | smx01.a1.net (pri: 10) |
| TXT | 1 | v=spf1 include:aspf.a1.net ~all |
| SOA | 1 | dns1.a1.net domainadmin.a1.net |
Analysis
IP Addresses
libro.de has exactly one IP address — 185.53.109.90.
ideenwerk.at, www.ideenwerk.at, magazin.libro.at plus two other host names have IP numbers in common with libro.de.
Name Servers
Three name servers are authoritative for libro.de: dns1.a1.net, dns2.a1.net and dns3.a1.net.
libro.de shares at least some of its name servers with other domains, including payperpage.at, dreisiebner.net, architekt-glueck.at and two others.
These name servers are frequently paired with the name servers dns1.telekom.at, dns2.telekom.at and dns3.telekom.at.
Host names with four IP addresses:
dns2.a1.net points to 192.174.68.105, 213.33.99.79, 2001:67c:1bc::105 and 2001:850:3010:101:213:33:99:79.
Host names pointing to two IP addresses:
dns1.a1.net maps to two IP addresses — 80.120.17.26 and 2001:850:3030:31:80:120:17:26.
dns3.a1.net maps to two IP addresses — 176.97.158.105 and 2001:67c:10b8::105.
Mail Servers
libro.de uses one mail server — smx01.a1.net.
The mail server setup of libro.de matches that of other domains such as nissan-boehm.at, karateclub-berndorf.at, disco-happy-night.at and two others.
There is one IP number for smx01.a1.net: 80.75.42.227.