delftopen.nl - robtex.com
delftopen.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-03-29 12:30:01 +0000 (EPOCH 1774787401) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-03-29 #25 | ||||||
Subdomains
stichting.delftopen.nl |
Same first word
delftopen.nl |
DNS History
6 records (5 active, 1 former)
●NSns1.satserver.nl2015-07-18 → 2026-03-29 · 2 obs
● 2026-03-29 13:33:16
●NSns2.satserver.nl2015-07-18 → 2026-03-29 · 2 obs
● 2026-03-29 13:33:16
●NSns3.satserver.nl2015-07-18 → 2026-03-29 · 2 obs
● 2026-03-29 13:33:16
●MXmail.delftopen.nl2015-07-18 → 2026-03-29 · 2 obs
● 2026-03-29 13:33:16
●A87.236.100.632026-02-26 → 2026-03-29 · 3 obs
● 2026-02-26 09:22:06
● 2026-03-29 13:33:16
○A87.236.96.362015-07-18 → 2017-09-03 · 4 obs
● 2017-09-03 02:46:18
○ 2026-02-26 09:22:06
○ 2026-03-29 13:33:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns3.dns.nl, ns1.dns.nl, ns4.dns.nl | - |
| delftopen.nl | ns1.satserver.nl, ns2.satserver.nl | 6 records |
✅ Authoritative Response
Server:87.236.99.22
NS records: ns1.satserver.nl, ns2.satserver.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 454ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.236.100.63 |
| NS | 3 | ns3.satserver.nl, ns1.satserver.nl... |
| MX | 1 | mail.delftopen.nl (pri: 10) |
| SOA | 1 | ns1.satserver.nl hostmaster.satserver.nl |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.satserver.nl, ns2.satserver.nl, ns2.satserver.nl...)
Analysis
Hierarchy
delftopen.nl is the parent of stichting.delftopen.nl.
IP Addresses
delftopen.nl resolves to one IP number: 87.236.100.63.
other host names including bijoma.org, czwaan.com, jatink.nl, eetbardit.com and gwwsupport.eu share IP numbers with delftopen.nl.
Name Servers
delftopen.nl is delegated to three name servers ns1.satserver.nl, ns2.satserver.nl and ns3.satserver.nl.
delftopen.nl at least partially shares name servers with other domains, for instance nagelstyliste.nl, balletschooldimphy.com, imw.nl, acgb.nl and chartercourier.nl.
Host names with four IPs:
ns2.satserver.nl points to: 2a02:cc8:22::22, 2a02:cc9:0:63::232, 87.236.99.22 and 185.145.63.232.
ns3.satserver.nl points to: 2001:470:1f15:be0::44, 2a02:cc8:33::33, 87.236.98.33 and 185.10.51.44.
Host names with two IPs:
ns1.satserver.nl points to: 2a02:cc8:11::11 and 87.236.96.11.
Mail Servers
delftopen.nl is handled by a single mail server, mail.delftopen.nl.
mail.delftopen.nl resolves to IP 87.236.99.52.