education-lab.org - robtex.com
education-lab.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 137.120.30.67🇳🇱 SURFNET-NL137.120.0.0/16 MAASNET | ||||||
| NS | gm.maastrichtuniversity.nl ⭐ | ||||||
| A | 2001:610:190:120::20:17🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| A | 137.120.20.17🇳🇱 SURFNET-NL137.120.0.0/16 MAASNET | ||||||
| PTR | gm.maastrichtuniversity.nl | ||||||
| NS | ns1.maastrichtuniversity.nl | ||||||
| A | 137.120.24.50🇳🇱 SURFNET-NL137.120.0.0/16 MAASNET | ||||||
| PTR | ns1.maastrichtuniversity.nl | ||||||
| NS | ns1.surfnet.nl | ||||||
| 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 | ||||||
| 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.maastrichtuniversity.eu | ||||||
| A | 137.120.24.51🇳🇱 SURFNET-NL137.120.0.0/16 MAASNET | ||||||
| PTR | ns2.maastrichtuniversity.eu | ||||||
| TXT | HARICA-bp2yQaCaGujpOZSasLD | ||||||
| SOA | gm.maastrichtuniversity.nlpostmaster@unimaas.nl serial=582 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784300720 | ||||||
Subdomains
www.education-lab.org |
Same first word
education-lab.org |
education-lab.nl |
DNS History
6 records (6 active, 0 former)
●NSgm.maastrichtuniversity.nl2026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
●NSns1.maastrichtuniversity.nl2026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
●NSns1.surfnet.nl2026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
●NSns1.zurich.surf.net2026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
●NSns2.maastrichtuniversity.eu2026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
●A137.120.30.672026-04-01 → 2026-07-17 · 2 obs
● 2026-07-17 15:26:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| education-lab.org | ns1.zurich.surf.net, ns1.surfnet.nl, ns1.maastrichtuniversity.nl, ns2.maastrichtuniversity.eu | - |
✅ Authoritative Response
Server:137.120.24.51
NS records: ns1.zurich.surf.net, ns1.surfnet.nl, ns1.maastrichtuniversity.nl, ns2.maastrichtuniversity.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 789ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 137.120.30.67 |
| NS | 4 | ns1.surfnet.nl, ns1.maastrichtuniversity.nl... |
| TXT | 1 | HARICA-bp2yQaCaGujpOZSasLD |
| SOA | 1 | gm.maastrichtuniversity.nl postmaster.un |
Analysis
Hierarchy
The domain www.education-lab.org falls under the parent education-lab.org.
IP Addresses
education-lab.org resolves to one IP address: 137.120.30.67.
maastrichtu.eu, www.maastrichtlda.nl, iemfc.eu and two other host names share IP numbers with education-lab.org.
Name Servers
education-lab.org has five name servers, which are ns2.maastrichtuniversity.eu, gm.maastrichtuniversity.nl, ns1.maastrichtuniversity.nl and two others.
At least some of education-lab.org's name servers are shared with other domains, for example ov-kaart.nl, plan-et.nl, 36.136.145.in-addr.arpa and two more.
These name servers tend to co-occur with ns1.surfnet.nl, ns1.zurich.surf.net, ns2.surfnet.nl and 4 other name servers in the same DNS delegations.
Hostnames that resolve to two IP addresses:
The A records for gm.maastrichtuniversity.nl return 137.120.20.17 and 2001:610:190:120::20:17.
The A records for ns1.surfnet.nl return 192.87.106.101 and 2001:610:1:800a:192:87:106:101.
The A records for ns1.zurich.surf.net return 195.176.255.9 and 2001:620:0:9::1103.
Hosts with just one IP address:
ns2.maastrichtuniversity.eu resolves to the IP address 137.120.24.51.
ns1.maastrichtuniversity.nl resolves to the IP address 137.120.24.50.