21cm.nl - robtex.com
21cm.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-04-12 16:00:02 +0000 (EPOCH 1776009602) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-04-12 #32 | ||||||
Subdomains
mail.21cm.nl |
Same first word
Similar names
DNS History
14 records (6 active, 8 former)
○NSns1.sohosted31.com2015-06-05 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
○NSns2.sohosted31.com2015-06-05 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
●NSnsn1.mijndomein.nl2026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
●NSnsn2.mijndomein.nl2026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
○MXfallbackmx.spamexperts.eu2019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
○MXlastmx.spamexperts.net2019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
○MXmail.21cm.nl2015-06-05 → 2017-03-17 · 4 obs
● 2017-03-17 11:44:58
○ 2019-12-21 07:11:54
○ 2026-04-12 16:53:16
○MXmx.spamexperts.com2019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
●MXmx1.mijndomein.nl2026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
●MXmx2.mijndomein.nl2026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
○A185.232.248.742019-12-21 → 2019-12-21 · 4 obs
● 2019-12-21 07:11:54
○ 2026-04-05 00:17:56
○ 2026-04-12 16:53:16
●A194.213.127.82026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
○A195.8.208.902015-06-05 → 2017-03-17 · 4 obs
● 2017-03-17 11:44:58
○ 2019-12-21 07:11:54
○ 2026-04-12 16:53:16
●A2a01:448:4005::82026-04-05 → 2026-04-12 · 3 obs
● 2026-04-05 00:17:56
● 2026-04-12 16:53:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| 21cm.nl | nsn1.mijndomein.nl, nsn2.mijndomein.nl | - |
✅ Authoritative Response
Server:176.97.158.15
NS records: nsn1.mijndomein.nl, nsn2.mijndomein.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 581ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 194.213.127.8 |
| AAAA | 1 | 2a01:448:4005::8 |
| NS | 2 | nsn1.mijndomein.nl, nsn2.mijndomein.nl |
| MX | 2 | mx1.mijndomein.nl (pri: 5), mx2.mijndomein.nl (pri: 6) |
| TXT | 1 | v=spf1 a mx include:spf.mijndomeinhostin |
| SOA | 1 | nsn1.mijndomein.nl hostmaster.21cm.nl |
Analysis
Hierarchy
The parent of mail.21cm.nl is 21cm.nl.
IP Addresses
21cm.nl resolves to two IP numbers: 2a01:448:4005::8 and 194.213.127.8.
Other host names, for instance mail.eldovi.nl, roberttroost.nl, fallback.sanderknuiman.nl, fysicas.nl and srv-nt1.houz.nl share IP numbers with 21cm.nl.
Name Servers
Two name servers nsn1.mijndomein.nl and nsn2.mijndomein.nl handle delegation for 21cm.nl.
21cm.nl uses the same name server setup as other domains, for example frequin.nl, studiodrift.org, kik-counseling.com, yournightmar3.com and spuizak.com.
Host names with two IP numbers:
nsn1.mijndomein.nl points to: 2001:67c:1bc::15 and 192.174.68.15
nsn2.mijndomein.nl points to: 2001:67c:10b8::15 and 176.97.158.15
Mail Servers
21cm.nl is handled by two mail servers: mx1.mijndomein.nl and mx2.mijndomein.nl.
21cm.nl has the same mail server setup as other domains, including detroubadours.nl, limai.nl, palani.nl, verzilverjeoverwaarde.nl and manueel-therapie.nl.
21cm.nl shares some mail servers with other domains, at least partially, such as macoad.nl, enjoylivingyourlife.com, erdpower.com, mkcoaching.info and (0x6469636b)vanleeuwen.nl.
Host names with six IP numbers: mx1.mijndomein.nl points to: 2a10:de80:1:4091:b9e9:2213:0:1, 2a10:de80:1:4091:b9e9:221b:0:1, 2a10:de80:1:4092:b9e9:2299:0:1, 185.233.34.19, 185.233.34.27 and 185.233.34.153; mx2.mijndomein.nl points to: 2a10:de80:1:4091:b9e9:221c:0:1, 2a10:de80:1:4092:b9e9:2293:0:1, 2a10:de80:1:4092:b9e9:229a:0:1, 185.233.34.28, 185.233.34.147 and 185.233.34.154.