core-backbone.es - robtex.com
core-backbone.es
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4a0:cbb::130🇩🇪 CORE-BACKBONE | ||||||
| PTR | core-backbone.com | ||||||
| A | 92.43.105.130🇩🇪 CORE-BACKBONE | ||||||
| NS | ns3.core-backbone.com ⭐ 🔒 | ||||||
| A | 2a01:4a0:53::199🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns3.core-backbone.com | ||||||
| A | 31.7.184.199🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns3.core-backbone.com | ||||||
| NS | ns1.core-backbone.com 🔒 | ||||||
| A | 2a01:4a0:1cbb::5🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns1.core-backbone.com | ||||||
| A | 83.142.86.5🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns1.core-backbone.com | ||||||
| NS | ns2.core-backbone.com 🔒 | ||||||
| A | 2a01:4a0:1cbb::6🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns2.core-backbone.com | ||||||
| A | 83.142.86.6🇩🇪 CORE-BACKBONE | ||||||
| PTR | ns2.core-backbone.com | ||||||
| MX | mx.core-backbone.com ⭐ 🔒 | ||||||
| A | 2a01:4a0:cbb::121🇩🇪 CORE-BACKBONE | ||||||
| PTR | mx.core-backbone.com | ||||||
| A | 92.43.105.121🇩🇪 CORE-BACKBONE | ||||||
| PTR | mx.core-backbone.com | ||||||
| MX | mx-barracuda.core-backbone.com(20) 🔒 | ||||||
| A | 92.43.105.27🇩🇪 CORE-BACKBONE | ||||||
| PTR | mx-barracuda.core-backbone.com | ||||||
| TXT | v=spf1 a mx ip4:92.43.105.121 ip4:92.43.105.27 ip6:2a01:4a0:cbb::121 ip4:130.... | ||||||
| SOA | ns3.core-backbone.comhostmaster@core-backbone.com 2025-07-15 #1 | ||||||
es
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.nic.es ⭐ 🔒 | ||||||
| NS | a.nic.es | ||||||
| NS | c.nic.es | ||||||
| NS | g.nic.es 🔒 | ||||||
| NS | h.nic.es | ||||||
| SOA | ns1.nic.eshostmaster@nic.es 2026-02-17 #2 | ||||||
Same first word
DNS History
7 records (7 active, 0 former)
●NSns1.core-backbone.com2026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●NSns2.core-backbone.com2026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●NSns3.core-backbone.com2026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●MXmx-barracuda.core-backbone.com2026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●MXmx.core-backbone.com2026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●A2a01:4a0:cbb::1302026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
●A92.43.105.1302026-02-16 → 2026-02-21 · 2 obs
● 2026-02-21 12:42:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| core-backbone.es | ns1.core-backbone.com, ns2.core-backbone.com, ns3.core-backbone.com | - |
✅ Authoritative Response
Server: 83.142.86.5
NS records: ns1.core-backbone.com, ns2.core-backbone.com, ns3.core-backbone.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for core-backbone.es (unsigned zone)
⏱️ Timing
Total: 829ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 92.43.105.130 |
| AAAA | 1 | 2a01:4a0:cbb::130 |
| NS | 3 | ns3.core-backbone.com, ns2.core-backbone.com... |
| MX | 2 | mx.core-backbone.com (pri: 20), mx-barracuda.core-backbone.com (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:92.43.105.121 ip4:92.43. |
| SOA | 1 | ns3.core-backbone.com hostmaster.core-ba |
AI analysis
core-backbone.es resolves to two IP numbers: 2a01:4a0:cbb::130 and 92.43.105.130.
other host names including core-backbone.de, corebackbone.de, core-backbone.ru, www.core-backbone.com and core-backbone.net share IP numbers with core-backbone.es.
core-backbone.es is delegated to three name servers ns1.core-backbone.com, ns2.core-backbone.com and ns3.core-backbone.com.
core-backbone.es at least partially shares name servers with other domains, for instance 9.1.0.0.0.a.4.0.1.0.a.2.ip6.arpa, cs-arena.de, 109.134.185.in-addr.arpa, 148.199.82.in-addr.arpa and 2.255.80.in-addr.arpa.
Host names with two IP numbers:
ns1.core-backbone.com points to: 2a01:4a0:1cbb::5 and 83.142.86.5.
ns2.core-backbone.com points to: 2a01:4a0:1cbb::6 and 83.142.86.6.
ns3.core-backbone.com points to: 2a01:4a0:53::199 and 31.7.184.199.
Two mail servers handle core-backbone.es: mx-barracuda.core-backbone.com and mx.core-backbone.com.
core-backbone.es shares the same mail server setup as other domains, for instance as33891.net, cs-arena.de, core-backbone.de, corebackbone.de and cs-arena.com.
core-backbone.es shares mail servers with other domains to some extent, for instance xirra.de.
these mail servers are commonly used with the mail servers mx.xirra.net.
Two IP numbers for a host: mx.core-backbone.com points to 2a01:4a0:cbb::121 and 92.43.105.121.
One IP number for a host: mx-barracuda.core-backbone.com points to 92.43.105.27.