theoriecheck.nl - robtex.com
theoriecheck.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 178.162.172.74🇳🇱 LEASEWEB-NL-AMS-01178.162.172.0/23 | ||||||
| NS | ns2.lensmedia.nl ⭐ | ||||||
| A | 212.7.200.244🇳🇱 LEASEWEB-NL-AMS-01212.7.192.0/20 | ||||||
| PTR | ws2.lensmedia.nl | ||||||
| NS | ns1.lensmedia.nl | ||||||
| A | 178.162.172.73🇳🇱 LEASEWEB-NL-AMS-01178.162.172.0/23 | ||||||
| PTR | ws1.lensmedia.nl | ||||||
| MX | mail.theoriecheck.nl ⭐ | ||||||
| A | 178.162.172.74🇳🇱 LEASEWEB-NL-AMS-01178.162.172.0/23 | ||||||
| TXT | v=spf1 +a +mx +ip4:5.79.64.114 +ip4:178.162.172.73 +ip4:5.79.64.113 -all | ||||||
| SOA | ns2.lensmedia.nlsupport@lensmedia.nl 2026-02-27 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-15 02:00:02 +0000 (EPOCH 1776218402) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-15 #4 | ||||||
Previously MX for
theoriecheck.nl |
Subdomains
mail.theoriecheck.nl |
Same first word
theoriecheck.de |
theoriecheck.nl |
DNS History
8 records (4 active, 4 former)
○NSns01-01.lensmedia.nl2015-07-07 → 2017-02-13 · 4 obs
● 2017-02-13 06:04:24
○ 2026-03-12 06:20:18
○ 2026-04-15 03:02:12
○NSns02-01.lensmedia.nl2015-07-07 → 2017-02-13 · 4 obs
● 2017-02-13 06:04:24
○ 2026-03-12 06:20:18
○ 2026-04-15 03:02:12
●NSns1.lensmedia.nl2026-03-12 → 2026-04-15 · 3 obs
● 2026-03-12 06:20:18
● 2026-04-15 03:02:12
●NSns2.lensmedia.nl2026-03-12 → 2026-04-15 · 3 obs
● 2026-03-12 06:20:18
● 2026-04-15 03:02:12
●MXmail.theoriecheck.nl2026-03-12 → 2026-04-15 · 3 obs
● 2026-03-12 06:20:18
● 2026-04-15 03:02:12
○MXtheoriecheck.nl2015-07-07 → 2017-02-13 · 4 obs
● 2017-02-13 06:04:24
○ 2026-03-12 06:20:18
○ 2026-04-15 03:02:12
●A178.162.172.742026-03-12 → 2026-04-15 · 3 obs
● 2026-03-12 06:20:18
● 2026-04-15 03:02:12
○A95.211.81.422015-07-07 → 2017-02-13 · 4 obs
● 2017-02-13 06:04:24
○ 2026-03-12 06:20:18
○ 2026-04-15 03:02:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| theoriecheck.nl | ns1.lensmedia.nl, ns2.lensmedia.nl | 2 records |
✅ Authoritative Response
Server:178.162.172.73
NS records: ns1.lensmedia.nl, ns2.lensmedia.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for theoriecheck.nl (unsigned zone)
⏱️ Timing
Total: 234ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 178.162.172.74 |
| NS | 2 | ns2.lensmedia.nl, ns1.lensmedia.nl |
| MX | 1 | mail.theoriecheck.nl (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:5.79.64.114 +ip4:178. |
| SOA | 1 | ns2.lensmedia.nl support.lensmedia.nl |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.lensmedia.nl, ns2.lensmedia.nl)
Analysis
Hierarchy
mail.theoriecheck.nl is a child of theoriecheck.nl.
IP Addresses
theoriecheck.nl resolves to one IP number: 178.162.172.74.
Other host names, for instance galeriesomers.nl, toysales.nl, theorie-check.nl, theorieles-app.nl and examencentrum.mobi share IP numbers with theoriecheck.nl.
Name Servers
theoriecheck.nl's delegation uses two name servers: ns1.lensmedia.nl and ns2.lensmedia.nl.
theoriecheck.nl uses the same name server setup as other domains, such as verkeersbord.mobi, rijschoolreview.nl, i-theorie.com, rijprocedure.mobi and bestetheoriesite.nl.
Host names with a single IP address: ns1.lensmedia.nl points to 178.162.172.73; ns2.lensmedia.nl points to 212.7.200.244.
Mail Servers
A single mail server handles theoriecheck.nl, mail.theoriecheck.nl.
Host name mail.theoriecheck.nl resolves to a single IP: 178.162.172.74.