dopen.nl - robtex.com
dopen.nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a01:1b0:7999:402::116🇳🇱 DUOCAST-AS2a01:1b0::/32 Duocast | ||||||
| PTR | ganymede.exsilia.net | ||||||
| A | 83.137.145.116🇳🇱 DUOCAST-AS83.137.144.0/21 Duocast | ||||||
| NS | ns2.exsilia.net ⭐ | ||||||
| A | 2a01:1b1:4418::53🇳🇱 DUOCASTBACKUP-AS2a01:1b1::/32 | ||||||
| PTR | ns2.duocast.net | ||||||
| A | 91.209.7.53🇳🇱 DUOCASTBACKUP-AS91.209.7.0/24 | ||||||
| PTR | ns2.duocast.net | ||||||
| NS | ns1.exsilia.net | ||||||
| A | 2a01:1b0:4418::53🇳🇱 DUOCAST-AS2a01:1b0::/32 Duocast | ||||||
| PTR | ns1.duocast.net | ||||||
| A | 83.137.146.53🇳🇱 DUOCAST-AS83.137.146.0/24 Duocast | ||||||
| PTR | ns1.duocast.net | ||||||
| MX | mail.dopen.nl ⭐ | ||||||
| A | 2a01:1b0:7999:402::116🇳🇱 DUOCAST-AS2a01:1b0::/32 Duocast | ||||||
| PTR | ganymede.exsilia.net | ||||||
| A | 83.137.145.116🇳🇱 DUOCAST-AS83.137.144.0/21 Duocast | ||||||
| PTR | ganymede.exsilia.net | ||||||
| TXT | v=spf1 include:_spf.exsilia.net +a +mx ~all | ||||||
| SOA | ns2.exsilia.netverstege@interkerk.nl 2026-03-10 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-07-10 23:00:02 +0000 (EPOCH 1783724402) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-07-10 #46 | ||||||
Subdomains
mail.dopen.nl |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.exsilia.net2015-07-03 → 2026-07-11 · 2 obs
● 2026-07-11 00:01:54
●NSns2.exsilia.net2015-07-03 → 2026-07-11 · 2 obs
● 2026-07-11 00:01:54
●MXmail.dopen.nl2015-07-03 → 2026-07-11 · 2 obs
● 2026-07-11 00:01:54
●A2a01:1b0:7999:402::1162015-07-03 → 2026-07-11 · 2 obs
● 2026-07-11 00:01:54
●A83.137.145.1162015-07-03 → 2026-07-11 · 2 obs
● 2026-07-11 00:01:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| dopen.nl | ns1.exsilia.net, ns2.exsilia.net | - |
✅ Authoritative Response
Server:91.209.7.53
NS records: ns1.exsilia.net, ns2.exsilia.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 883ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 83.137.145.116 |
| AAAA | 1 | 2a01:1b0:7999:402::116 |
| NS | 2 | ns1.exsilia.net, ns2.exsilia.net |
| MX | 1 | mail.dopen.nl (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.exsilia.net +a +mx ~ |
| SOA | 1 | ns2.exsilia.net verstege.interkerk.nl |
Analysis
Hierarchy
dopen.nl is the parent zone for mail.dopen.nl.
IP Addresses
dopen.nl directs to two IP numbers, 83.137.145.116 and 2a01:1b0:7999:402::116
tcki.de, rktv.nl, mail.conventuelen.nl and two other host names share IP numbers with dopen.nl.
Name Servers
dopen.nl is delegated to two name servers: ns1.exsilia.net and ns2.exsilia.net.
dopen.nl uses the same name servers as several other domains — among them exsilia.com, lentink.email, spesalvi.nl and two more.
dopen.nl partially shares its name servers with domains like dierenambulance-groningen.nl and nop.nl.
These name servers are regularly seen alongside ns1.quickhost.nl and ns2.quickhost.nl as name servers.
ns1.exsilia.net and ns2.exsilia.net each resolve to two IP addresses: ns1.exsilia.net points to 83.137.146.53 and 2a01:1b0:4418::53, while ns2.exsilia.net points to 91.209.7.53 and 2a01:1b1:4418::53.
Mail Servers
Mail for dopen.nl is handled by a single mail server, mail.dopen.nl.
The host mail.dopen.nl resolves to 83.137.145.116 and 2a01:1b0:7999:402::116 — two IP addresses.