opt1dev.nl - robtex.com
opt1dev.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-16 07:00:01 +0000 (EPOCH 1776322801) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-16 #14 | ||||||
Same first word
opt1dev.nl |
DNS History
5 records (5 active, 0 former)
●MXopt1dev-nl.mail.protection.outlook.com2026-04-03 → 2026-04-16 · 2 obs
● 2026-04-16 07:52:14
●A2a01:238:20a:202:1094::2026-04-03 → 2026-04-16 · 2 obs
● 2026-04-16 07:52:14
●A81.169.145.942026-04-03 → 2026-04-16 · 2 obs
● 2026-04-16 07:52:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| opt1dev.nl | docks15.rzone.de, shades20.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.142
NS records: docks15.rzone.de, shades20.rzone.de
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 528ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.94 |
| AAAA | 1 | 2a01:238:20a:202:1094:: |
| NS | 2 | docks15.rzone.de, shades20.rzone.de |
| MX | 1 | opt1dev-nl.mail.protection.outlook.com ( |
| TXT | 4 | v=spf1 include:spf.protection.outlook.co, MS=ms42473017... |
| SOA | 1 | docks15.rzone.de hostmaster.strato-rz.de |
Analysis
IP Addresses
opt1dev.nl points to two IP numbers: 2a01:238:20a:202:1094:: and 81.169.145.94.
Other host names, for instance cramer-stuben.de, massing.info, slowretail.de, infitech.nl and bnvs.nl share IP numbers with opt1dev.nl.
Name Servers
Delegation for opt1dev.nl rests with two name servers, docks15.rzone.de and shades20.rzone.de.
opt1dev.nl shares the same name server setup as other domains, including assmanns.com, mona-moon.com, asesorialuishervas.com, mali-losinj.net and bertsmeets.nl.
opt1dev.nl at least partially shares name servers with other domains, for instance automobile-mueller.info, air-bs.com, easydigit.de, dd-info.de and betulus.de.
These name servers are commonly used together with the name servers shades16.rzone.de, docks17.rzone.de, shades02.rzone.de, docks18.rzone.de, shades05.rzone.de, shades09.rzone.de, shades18.rzone.de, docks03.rzone.de, docks12.rzone.de and docks02.rzone.de.
Host names with two IP numbers: docks15.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:15 and 217.160.80.142; shades20.rzone.de points to 2607:f1c0:fe:53:185:132:34:147 and 185.132.34.147.
Mail Servers
opt1dev.nl is handled by a single mail server, opt1dev-nl.mail.protection.outlook.com.
opt1dev-nl.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:ca04::1, 2a01:111:f403:ca04::a, 2a01:111:f403:ca09::2, 2a01:111:f403:ca09::e, 52.101.68.12, 52.101.68.18, 52.101.68.27 and 52.101.68.36.