doctus.nl - robtex.com
doctus.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 83.172.188.51🇳🇱 NEDZONE-AS83.172.188.0/23 | ||||||
| PTR | ns1.securenameserver1.net | ||||||
| NS | ns1.securenameserver12.net ⭐ | ||||||
| A | 83.172.129.187🇳🇱 NEDZONE-AS83.172.128.0/22 | ||||||
| PTR | ns1.securenameserver1.net | ||||||
| NS | ns2.securenameserver12.net | ||||||
| A | 83.172.129.188🇳🇱 NEDZONE-AS83.172.128.0/22 | ||||||
| PTR | ns1.securenameserver1.net | ||||||
| MX | mail.doctus.nl ⭐ | ||||||
| A | 83.172.188.51🇳🇱 NEDZONE-AS83.172.188.0/23 | ||||||
| PTR | ns1.securenameserver1.net | ||||||
| TXT | v=spf1 +a +mx -all | ||||||
| SOA | ns1.securenameserver12.netjoost@koelman.info 2025-08-06 #15 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-24 21:30:01 +0000 (EPOCH 1777066201) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-24 #43 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.securenameserver12.net2015-07-14 → 2026-04-24 · 4 obs
● 2026-04-10 09:40:24
○ 2026-04-14 03:31:30
● 2026-04-24 22:34:28
●NSns2.securenameserver12.net2015-07-14 → 2026-04-24 · 4 obs
● 2026-04-10 09:40:24
○ 2026-04-14 03:31:30
● 2026-04-24 22:34:28
●MXmail.doctus.nl2015-07-14 → 2026-04-24 · 4 obs
● 2026-04-10 09:40:24
○ 2026-04-14 03:31:30
● 2026-04-24 22:34:28
○A83.172.144.662015-07-14 → 2017-06-20 · 4 obs
● 2017-06-20 10:20:00
○ 2026-03-27 12:32:42
○ 2026-04-24 22:34:28
●A83.172.188.512026-03-27 → 2026-04-24 · 5 obs
● 2026-03-27 12:32:42
● 2026-04-10 09:40:24
○ 2026-04-14 03:31:30
● 2026-04-24 22:34:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| doctus.nl | ns1.securenameserver12.net, ns2.securenameserver12.net | - |
✅ Authoritative Response
Server:83.172.129.188
NS records: ns1.securenameserver12.net, ns2.securenameserver12.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doctus.nl (unsigned zone)
⏱️ Timing
Total: 470ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 83.172.188.51 |
| NS | 2 | ns1.securenameserver12.net, ns2.securenameserver12.net |
| MX | 1 | mail.doctus.nl (pri: 10) |
| TXT | 1 | v=spf1 +a +mx -all |
| SOA | 1 | ns1.securenameserver12.net joost.koelman |
Analysis
IP Addresses
doctus.nl points to a single IP number: 83.172.188.51.
other host names for instance highdensity.be, mail.hypotheekuitkomst.com, securenameserver1.net, christenenvoorgorcum.nl and proteus.nu share IP numbers with doctus.nl.
Name Servers
doctus.nl is delegated to two name servers: ns1.securenameserver12.net and ns2.securenameserver12.net.
doctus.nl shares the same name server setup as other domains, for example denieuwekuil.nl, coolbricks.nl, podocentrumalkmaar.eu, uitgeestermeer.nl and zonjee.nl.
doctus.nl partially shares name servers with other domains, for instance christenenvoorgorcum.nl, plinit.com, securenameserver12.net and chaletlaboheme.be.
These name servers are often used with ns1.securenameserver1.net and ns2.securenameserver1.net.
Host names with one IP number:
The host ns1.securenameserver12.net points to 83.172.129.187 and the host ns2.securenameserver12.net points to 83.172.129.188.
Mail Servers
doctus.nl is handled by a single mail server, mail.doctus.nl.
Host name mail.doctus.nl points to IP address 83.172.188.51.