opleiding123.nl

.nl crawl

First seen 2026-05-31 · Last seen 2026-05-31 · ok HTTP/1.1 200 455 ms crawled 2026-06-01

BE · 77.241.81.26 · AS34762 Combell NV

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: opleiding123.nl - 37.000+ studies, cursussen en trainingen
Description: Alle studies, cursussen en trainingen van Nederland
Language: nl
Canonical: https://opleiding123.nl/

Open Graph

url: https://opleiding123.nl/
title: opleiding123.nl - 37.000+ studies, cursussen en trainingen
site name: opleiding123.nl
description: Alle studies, cursussen en trainingen van Nederland

Technology

Server: nginx
jQuery: 3.7.1

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (5)

cdn.jsdelivr.net×7
fonts.googleapis.com×3
cdnjs.cloudflare.com×1
fonts.gstatic.com×1
www.googletagmanager.com×1

DNS records live

NS

ns1.combell.eu
ns3.combell.net
ns4.combell.net

MX

10 smtp1.byte.nl
50 smtp2.byte.nl

Email authentication weak

SPF: v=spf1 include:spf.byte.nl ?all
neutral (?all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-04-22 to 2026-07-21

Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://opleiding123.nl/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Links to (2)

web-walker.nl×1
doorstroommatrix.nl×1

Linked from (1)

doorstroommatrix.nl×1