indexo.dev

onderwijsonstage.nl

.nl ok HTTP/1.1 200 471 ms

First seen 2026-06-17 · Last seen 2026-06-17 · crawled 2026-06-17

NL · 84.22.101.4 · AS196752 Tilaa B.V.

Reputation 87/100 weak security headers no dmarc policy

sector education subsector education media type landing page

HTML metadata

Title
Onderwijs On Stage
Language
nl
Generator
https://odigos.cloud
Canonical
https://www.onderwijsonstage.nl
Translations
  • nl

Open Graph

url
https://www.onderwijsonstage.nl
title
Onderwijs On Stage
locale
nl-nl

Technology

Server
nginx
jQuery
1.11.3 known XSS (<3.5)
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Social widgets
  • Twitter Widget
  • YouTube Embed
Third-party hosts loaded (7)
  • 4a843263-6f0b-11e8-94bd-0652cd845a9a.s3.eu-west-1.amazonaws.com×31
  • fonts.googleapis.com×2
  • ajax.googleapis.com×1
  • maxcdn.bootstrapcdn.com×1
  • platform.twitter.com×1
  • www.googletagmanager.com×1
  • www.youtube.com×1

Social

DNS records live

NS
  • ns1.openprovider.nl
  • ns2.openprovider.be
  • ns3.openprovider.eu
MX
  • 100 onderwijsonstage-nl.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 +a +mx include:_spf.contentpower.nl include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

YR2
from 2026-06-13 to 2026-09-11
Expires in 82 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://www.onderwijsonstage.nl/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • weak content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff, nosniff

Links to (1)

Linked from (4)

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