eduweb.nl - robtex.com
eduweb.nl
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.surfnet.nl ⚠️ Not in zone NS records | ||||||
| A | 2001:610:1:800a:192:87:106:101🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns1.surfnet.nl | ||||||
| A | 192.87.106.101🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV | ||||||
| PTR | ns1.surfnet.nl | ||||||
| NS | ns1.zurich.surf.net ⚠️ Not in zone NS records | ||||||
| A | 2001:620:0:9::1103🇨🇭 Switch2001:620::/32 SWITCH, The Swiss Education & Research Network | ||||||
| PTR | ns1.zurich.surf.net | ||||||
| A | 195.176.255.9🇨🇭 Switch195.176.224.0/19 SWITCH-AGGR.102 | ||||||
| PTR | ns1.zurich.surf.net | ||||||
| NS | ns2.surfnet.nl ⚠️ Not in zone NS records | ||||||
| A | 2001:610:3:200a:192:87:36:2🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns2.surfnet.nl | ||||||
| A | 192.87.36.2🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV | ||||||
| PTR | ns2.surfnet.nl | ||||||
| NS | ns3.surfnet.nl ⚠️ Not in zone NS records | ||||||
| A | 2001:610:0:800c:195:169:124:71🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns3.surfnet.nl | ||||||
| A | 195.169.124.71🇳🇱 SURFNET-NL195.169.0.0/16 SURFnet CIDR Block VI | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-03-25 10:30:01 +0000 (EPOCH 1774434601) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-03-25 #21 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSmailgate.eur.nl2015-07-21 → 2015-07-21 · 3 obs
○ 2015-10-24 07:26:52
○ 2026-03-25 11:14:08
○NSns1.eur.nl2015-07-21 → 2016-03-05 · 4 obs
● 2016-03-05 21:02:18
○ 2026-03-24 04:25:24
○ 2026-03-25 11:14:08
●NSns1.surfnet.nl2026-03-24 → 2026-03-25 · 3 obs
● 2026-03-24 04:25:24
● 2026-03-25 11:14:08
●NSns1.zurich.surf.net2026-03-24 → 2026-03-25 · 3 obs
● 2026-03-24 04:25:24
● 2026-03-25 11:14:08
○NSns2.eur.nl2015-07-21 → 2016-03-05 · 4 obs
● 2016-03-05 21:02:18
○ 2026-03-24 04:25:24
○ 2026-03-25 11:14:08
●NSns2.surfnet.nl2026-03-24 → 2026-03-25 · 3 obs
● 2026-03-24 04:25:24
● 2026-03-25 11:14:08
●NSns3.surfnet.nl2026-03-24 → 2026-03-25 · 3 obs
● 2026-03-24 04:25:24
● 2026-03-25 11:14:08
○NSpopeye.eur.nl2015-07-21 → 2015-07-21 · 3 obs
○ 2015-10-24 07:26:52
○ 2026-03-25 11:14:08
○A130.115.142.462015-07-21 → 2016-03-05 · 4 obs
● 2016-03-05 21:02:18
○ 2026-03-24 04:25:24
○ 2026-03-25 11:14:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| eduweb.nl | ns1.zurich.surf.net, ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl | 6 records |
✅ Authoritative Response
Server:192.87.106.101
NS records: ns1.zurich.surf.net, ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for eduweb.nl (unsigned zone)
⏱️ Timing
Total: 521ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns3.surfnet.nl, ns2.surfnet.nl, ns1.surfnet.nl...)
Analysis
Name Servers
eduweb.nl delegates to four name servers: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl and ns1.zurich.surf.net.
eduweb.nl at least partially shares name servers with other domains, for instance mercator-research.eu, vumc.nl, communicatie.surf.nl, 166.171.194.in-addr.arpa and i-botics.com.
These name servers are commonly used with the name servers ns-ext-01.wur.nl, arachne.leidenuniv.nl, ns6.eur.nl, umcdns03.azn.nl, ns2.maastrichtuniversity.eu, ns1.maastrichtuniversity.nl, gm.maastrichtuniversity.nl and dex1001.umcutrecht.nl.
Host names with two IP numbers: ns1.surfnet.nl points to 2001:610:1:800a:192:87:106:101 and 192.87.106.101; ns2.surfnet.nl points to 2001:610:3:200a:192:87:36:2 and 192.87.36.2; ns3.surfnet.nl points to 2001:610:0:800c:195:169:124:71 and 195.169.124.71; ns1.zurich.surf.net points to 2001:620:0:9::1103 and 195.176.255.9.