openscience.nl - dns.ninja
openscience.nl
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-07-24 19:00:01 +0000 (EPOCH 1784919601) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-07-24 #38 | ||||||
Same first word
Similar names
DNS History
11 records (6 active, 5 former)
●NSns1.surfnet.nl2018-10-27 → 2026-07-24 · 2 obs
● 2026-07-24 20:14:26
●NSns1.zurich.surf.net2018-10-27 → 2026-07-24 · 2 obs
● 2026-07-24 20:14:26
●NSns2.surfnet.nl2018-10-27 → 2026-07-24 · 2 obs
● 2026-07-24 20:14:26
●NSns3.surfnet.nl2018-10-27 → 2026-07-24 · 2 obs
● 2026-07-24 20:14:26
○MXopenscience-nl.mail.protection.outlook.com2018-10-27 → 2018-10-27 · 3 obs
○ 2026-03-01 16:47:22
○ 2026-07-24 20:14:26
○A145.100.190.2432018-10-27 → 2018-10-27 · 3 obs
○ 2026-03-01 16:47:22
○ 2026-07-24 20:14:26
○A192.87.108.152018-10-27 → 2018-10-27 · 3 obs
○ 2026-03-01 16:47:22
○ 2026-07-24 20:14:26
○A2001:610:188:410:145:100:190:2432018-10-27 → 2018-10-27 · 3 obs
○ 2026-03-01 16:47:22
○ 2026-07-24 20:14:26
○A2001:610:508:108:192:87:108:152018-10-27 → 2018-10-27 · 3 obs
○ 2026-03-01 16:47:22
○ 2026-07-24 20:14:26
●A2a03:9700:8000::83002026-03-01 → 2026-07-24 · 3 obs
● 2026-03-01 16:47:22
● 2026-07-24 20:14:26
●A31.7.6.802026-03-01 → 2026-07-24 · 3 obs
● 2026-03-01 16:47:22
● 2026-07-24 20:14:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns3.dns.nl, ns1.dns.nl, ns4.dns.nl | - |
| openscience.nl | ns1.zurich.surf.net, ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl | 6 records |
✅ Authoritative Response
Server:192.87.36.2
NS records: ns1.zurich.surf.net, ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1055ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.7.6.80 |
| AAAA | 1 | 2a03:9700:8000::8300 |
| NS | 4 | ns2.surfnet.nl, ns1.zurich.surf.net... |
| MX | 1 | . (pri: 0) |
| TXT | 2 | v=spf1 include:_spf.betawerk.nl -all, HARICA-JlSTEfqUSZ6Ss8X3DRR |
| SOA | 1 | ns1.surfnet.nl dns-beheer.surf.nl |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl...)
Analysis
IP Addresses
openscience.nl points to the IP addresses 31.7.6.80 and 2a03:9700:8000::8300
Two other host names, along with struin.nl, nro.nl and com.kinderopvanghumanitas.nl, also share IP numbers with openscience.nl.
Name Servers
The NS records for openscience.nl point to four name servers: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl and ns1.zurich.surf.net.
At least some of openscience.nl's name servers are shared with other domains, for example 105.145.in-addr.arpa, universiteitleiden.nl, geneticavanstotteren.nl and two more.
These name servers tend to co-occur with umcdns03.azn.nl, ns-ext-01.wur.nl, arachne.leidenuniv.nl and 4 other name servers in the same DNS delegations.
Four hostnames, each resolving to a pair of IP addresses: ns1.surfnet.nl directs to 192.87.106.101 and 2001:610:1:800a:192:87:106:101; ns2.surfnet.nl directs to 192.87.36.2 and 2001:610:3:200a:192:87:36:2; ns3.surfnet.nl directs to 195.169.124.71 and 2001:610:0:800c:195:169:124:71; ns1.zurich.surf.net directs to 195.176.255.9 and 2001:620:0:9::1103.