osgopleidingen.com - robtex.com
osgopleidingen.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 145.131.40.137🇳🇱 CLDIN-NL145.131.32.0/20 | ||||||
| PTR | vorta.dijkstra.nl | ||||||
| NS | ocampa.dijkstra.nl ⭐ | ||||||
| A | 145.131.30.29🇳🇱 CLDIN-NL145.131.16.0/20 | ||||||
| PTR | ocampa.dijkstra.nl | ||||||
| NS | ns1.openprovider.nl ⚠️ Not in parent delegation | ||||||
| A | 2400:cb00:2049:1::a29f:1a0a🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.26.10Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | vorta.dijkstra.nl | ||||||
| A | 145.131.40.137🇳🇱 CLDIN-NL145.131.32.0/20 | ||||||
| PTR | vorta.dijkstra.nl | ||||||
| MX | osgopleidingen.com ⭐ 🔒 | ||||||
| A | 145.131.40.137🇳🇱 CLDIN-NL145.131.32.0/20 | ||||||
| PTR | vorta.dijkstra.nl | ||||||
| SOA | ocampa.dijkstra.nlsupport@dijkstra.nl 2026-04-01 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778686646 | ||||||
MX for
osgopleidingen.com |
Same first word
osgopleidingen.com |
DNS History
10 records (5 active, 5 former)
○NSns1.hostnet.nl2019-12-15 → 2019-12-15 · 3 obs
○ 2026-03-07 03:23:38
○ 2026-05-13 15:56:48
●NSns1.openprovider.nl2026-03-07 → 2026-05-13 · 3 obs
● 2026-03-07 03:23:38
● 2026-05-13 15:56:48
○NSns2.hostnetbv.com2019-12-15 → 2019-12-15 · 3 obs
○ 2026-03-07 03:23:38
○ 2026-05-13 15:56:48
○NSns3.hostnetbv.nl2019-12-15 → 2019-12-15 · 3 obs
○ 2026-03-07 03:23:38
○ 2026-05-13 15:56:48
●NSocampa.dijkstra.nl2026-03-07 → 2026-05-13 · 3 obs
● 2026-03-07 03:23:38
● 2026-05-13 15:56:48
●NSvorta.dijkstra.nl2026-03-07 → 2026-05-13 · 3 obs
● 2026-03-07 03:23:38
● 2026-05-13 15:56:48
●MXosgopleidingen.com2026-03-07 → 2026-05-13 · 2 obs
● 2026-05-13 15:56:48
●A145.131.40.1372026-03-07 → 2026-05-13 · 3 obs
● 2026-03-07 03:23:38
● 2026-05-13 15:56:48
○A2a02:2268:ffff:ffff::42019-12-15 → 2019-12-15 · 3 obs
○ 2026-03-07 03:23:38
○ 2026-05-13 15:56:48
○A91.184.0.1002019-12-15 → 2019-12-15 · 3 obs
○ 2026-03-07 03:23:38
○ 2026-05-13 15:56:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| osgopleidingen.com | ocampa.dijkstra.nl, vorta.dijkstra.nl | - |
✅ Authoritative Response
Server:145.131.30.29
NS records: ocampa.dijkstra.nl, vorta.dijkstra.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2384ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 145.131.40.137 |
| NS | 3 | ocampa.dijkstra.nl, ns1.openprovider.nl... |
| MX | 1 | osgopleidingen.com (pri: 0) |
| SOA | 1 | ocampa.dijkstra.nl support.dijkstra.nl |
Analysis
Mail Server Role
osgopleidingen.com serves as the mail server for osgopleidingen.com.
IP Addresses
osgopleidingen.com points to a single IP number: 145.131.40.137.
Other host names, for instance dijkstra.nl, mail.makron.nl, vigorem.nl, milieugroepnederland.org and calertho.com share IP numbers with osgopleidingen.com.
Name Servers
The delegation for osgopleidingen.com is handled by three name servers: ocampa.dijkstra.nl, vorta.dijkstra.nl and ns1.openprovider.nl.
osgopleidingen.com at least partially shares name servers with other domains, for instance blendiz.com, energie-vergelijken.nl, stream-netfllx.com, toolmasters.nl and fibaminternacional.com.
These name servers are commonly used with ns2.openprovider.be and ns3.openprovider.eu.
Host names with two IP numbers:
ns1.openprovider.nl points to 2400:cb00:2049:1::a29f:1a0a and 162.159.26.10.
Host names with one IP number:
ocampa.dijkstra.nl points to 145.131.30.29.
vorta.dijkstra.nl points to 145.131.40.137.
Mail Servers
A single mail server handles osgopleidingen.com.
osgopleidingen.com points to a single IP: 145.131.40.137.