mx20.c21.nl - robtex.com
mx20.c21.nl
| DNSSEC | ⚠️ Not signed | ||||||
| MX | smtp.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::2097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| PTR | smtp.rzone.de | ||||||
| A | 81.169.145.98🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtp.rzone.de | ||||||
c21.nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:238:20a:202:1092::🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| A | 81.169.145.92🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| NS | docks14.rzone.de ⭐ | ||||||
| NS | shades03.rzone.de | ||||||
| MX | smtp.rzone.de ⭐ | ||||||
| SOA | docks14.rzone.dehostmaster@strato-rz.de 2020-07-01 #27 | ||||||
Previously MX for
Same first word
Similar names
20xm.com |
02xm.com |
mx02.kinghost.net |
mx02.gov.jo |
20mx.com |
mx02.gov.mz |
mx02.ru |
mx02.de |
02xm.top |
mx02.123hjemmeside.dk |
m20x.com |
20xm.cn |
mx02.gov.bf |
xm02.com |
xm20.top |
xm20.com |
xm02.net |
DNS History
2 records (1 active, 1 former)
○A213.163.67.152015-06-05 → 2015-06-05 · 3 obs
● 2015-06-05 18:42:24
○ 2015-10-26 11:21:00
○ 2026-04-13 21:23:40
○ 2015-10-26 11:21:00
○ 2026-04-13 21:23:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns4.dns.nl, ns3.dns.nl | - |
| c21.nl | docks14.rzone.de, shades03.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.130
NS records: docks14.rzone.de, shades03.rzone.de
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 785ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| MX | 1 | smtp.rzone.de (pri: 5) |
Analysis
Mail Servers
mx20.c21.nl is handled by a single mail server, smtp.rzone.de.
mx20.c21.nl shares the same mail server setup as other domains, for instance mx.petromaxsa.com, 1rookkanaal.com, madam-jeanette.com, vthotelsrepresentation.com and masja.com.
Host smtp.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.