holdkey.eu - robtex.com
holdkey.eu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 87.233.181.163🇳🇱 TrueServer-AS87.233.128.0/18 True GlobalVoice (AMS7) netblock | ||||||
| PTR | sensorbox.sensorbox.nl | ||||||
| NS | auth01.dns.trueserver.nl ⭐ | ||||||
| A | 2001:9a8:0:10::2🇳🇱 TrueServer-AS2001:9a8::/32 TrueServer BV | ||||||
| PTR | auth01.dns.trueserver.nl | ||||||
| A | 213.193.210.2🇳🇱 TrueServer-AS213.193.210.0/24 | ||||||
| PTR | auth01.dns.trueserver.nl | ||||||
| NS | auth02.dns.trueserver.nl | ||||||
| A | 2001:9a8:0:11::2🇳🇱 TrueServer-AS2001:9a8::/32 TrueServer BV | ||||||
| PTR | auth02.dns.trueserver.nl | ||||||
| A | 193.28.152.2🇳🇱 TrueServer-AS193.28.152.0/24 TrueServer BV | ||||||
| PTR | auth02.dns.trueserver.nl | ||||||
| NS | auth03.dns.trueserver.nl | ||||||
| A | 2001:9a8:0:12::2🇳🇱 TrueServer-AS2001:9a8::/32 TrueServer BV | ||||||
| PTR | auth03.dns.trueserver.nl | ||||||
| A | 213.239.136.2🇳🇱 TrueServer-AS213.239.136.0/24 | ||||||
| PTR | auth03.dns.trueserver.nl | ||||||
| MX | mail.holdkey.eu ⭐ | ||||||
| A | 87.233.181.163🇳🇱 TrueServer-AS87.233.128.0/18 True GlobalVoice (AMS7) netblock | ||||||
| PTR | sensorbox.sensorbox.nl | ||||||
| TXT | v=spf1 a mx ip4:87.233.181.163 ~all | ||||||
| SOA | auth01.dns.trueserver.nlhostmaster@trueserver.nl 2015-05-22 #35 | ||||||
eu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | si.dns.eu ⭐ | ||||||
| NS | be.dns.eu | ||||||
| NS | w.dns.eu | ||||||
| NS | x.dns.eu | ||||||
| NS | y.dns.eu | ||||||
| SOA | si.dns.eutech@eurid.eu serial=1123602294 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSauth01.dns.trueserver.nl2015-06-19 → 2026-04-25 · 2 obs
● 2026-04-25 04:18:48
●NSauth02.dns.trueserver.nl2015-06-19 → 2026-04-25 · 2 obs
● 2026-04-25 04:18:48
●NSauth03.dns.trueserver.nl2015-06-19 → 2026-04-25 · 2 obs
● 2026-04-25 04:18:48
●MXmail.holdkey.eu2015-06-19 → 2026-04-25 · 2 obs
● 2026-04-25 04:18:48
●A87.233.181.1632015-06-19 → 2026-04-25 · 2 obs
● 2026-04-25 04:18:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| eu | w.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu... | - |
| holdkey.eu | auth03.dns.trueserver.nl, auth01.dns.trueserver.nl, auth02.dns.trueserver.nl | - |
✅ Authoritative Response
Server:193.28.152.2
NS records: auth03.dns.trueserver.nl, auth01.dns.trueserver.nl, auth02.dns.trueserver.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for holdkey.eu (unsigned zone)
⏱️ Timing
Total: 642ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.233.181.163 |
| NS | 3 | auth02.dns.trueserver.nl, auth01.dns.trueserver.nl... |
| MX | 1 | mail.holdkey.eu (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:87.233.181.163 ~all |
| SOA | 1 | auth01.dns.trueserver.nl hostmaster.true |
Analysis
Hierarchy
holdkey.eu is parent of www.holdkey.eu and mail.holdkey.eu.
IP Addresses
holdkey.eu points to a single IP: 87.233.181.163.
Other host names, for instance mail.worldofhotels.info, www.vanreek.nl, channels.nl, www.bioscoop.com and worldofhotels.info share IP numbers with holdkey.eu.
Name Servers
holdkey.eu is delegated to three name servers: auth01.dns.trueserver.nl, auth02.dns.trueserver.nl and auth03.dns.trueserver.nl.
holdkey.eu at least partially shares its name servers with other domains, for instance houwert.eu, infomr.nl, inter-child.com, spigraph.nl and 70mm.nl.
These name servers are commonly used together with ns1.procurios.net, ns2.procurios.net, ns3.procurios.net, ns1.trueserver.nl, ns2.trueserver.nl, ns3.trueserver.nl, auth01.dns.true.nl and auth02.dns.true.nl.
Host names with two IP numbers:
auth01.dns.trueserver.nl points to: 2001:9a8:0:10::2 and 213.193.210.2.
auth02.dns.trueserver.nl points to: 2001:9a8:0:11::2 and 193.28.152.2.
auth03.dns.trueserver.nl points to: 2001:9a8:0:12::2 and 213.239.136.2.
Mail Servers
holdkey.eu is served by a single mail server, mail.holdkey.eu.
mail.holdkey.eu points to IP number 87.233.181.163.