indexo.dev

tech-cursus.nl

.nl crawl

First seen 2026-06-01 · Last seen 2026-06-04 · ok HTTP/1.1 200 269 ms crawled 2026-06-02

NL · 92.63.174.240 · AS48635 Your Hosting B.V.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Stichting Lowercase
Description
Stichting Lowercase is een non-profit organisatie gespecialiseerd in het maken van online lessen op het gebied van nieuwe technologie en digitale weerbaarheid.
Language
nl
Canonical
https://www.tech-cursus.nl/

Open Graph

url
https://www.tech-cursus.nl/
title
Stichting Lowercase
locale
nl_NL

Technology

Server
nginx
PHP
8.3.31 security-only
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns1.argewebhosting.eu
  • ns2.argewebhosting.com
  • ns3.argewebhosting.nl
MX
  • 10 primary.yourfilter.nl
  • 20 fallback.yourfilter.nl
  • 32767 ms77236391.msv1.invalid
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 include:_spf.yourfilter.nl -all
strict (-all)
DMARC
v=DMARC1;p=quarantine
policy: quarantine
DKIM
  • default: v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4KGS4HAsY9dAGTRb+Ft87Hthw3UfFx6JA103iW/aEhPCVB5Q4Z0syeISxz+ogln5oUBReSaSlDY2NeOwGq4/z…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-09-20 to 2026-09-21
Expires in 108 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.tech-cursus.nl/

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

Links to (6)

Linked from (2)