indexo.dev

nationaalleermiddelencongres.nl

.nl crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 960 ms crawled 2026-06-02

DE · 3.120.161.65 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
NLC 2026 - Het onderwijs congres van 2026
Language
nl
Canonical
https://www.nationaalleermiddelencongres.nl/home

Open Graph

url
https://www.nationaalleermiddelencongres.nl/home
title
NLC 2026 - Het onderwijs congres van 2026

Technology

Server
nginx
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • cdn1.aanmelder.nl×16
  • fonts.googleapis.com×10
  • cdn.aanmelderusercontent.nl×8
  • www.googletagmanager.com×1

DNS records live

NS
  • ns20.digicertdns.com
  • ns21.digicertdns.com
  • ns22.digicertdns.com
  • ns23.digicertdns.net
  • ns24.digicertdns.net
  • ns25.digicertdns.net
TXT
  • v=DKIM1; p=
  • aanmelder.nl-user=66396

Email authentication no MX

SPF
v=spf1 -all
strict (-all)
DMARC
v=DMARC1;p=reject;pct=100;rua=mailto:438399e9e0@rua.easydmarc.eu,mailto:rua@tmdmarc.nl;ruf=mailto:438399e9e0@ruf.easydmarc.eu,mailto:ruf@tmdmarc.nl;ri=86400;fo=1;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-22 to 2026-08-20
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://www.nationaalleermiddelencongres.nl/home

present
  • strict-transport-security
  • content-security-policy
  • content-security-policy-report-only
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
deny
x-content-type-options
nosniff
content-security-policy
base-uri 'self'; default-src 'none'; manifest-src *.aanmelder.nl; object-src 'none'; font-src 'self' data: *.aanmelder.nl *.aanmelderusercontent.nl fonts.gstatic.com; img-src blob: data: https:; worker-src blob: 'unsafe-eval' 'unsafe-inline' https:; script-src 'unsafe-eval' 'unsafe-inline' https:; style-src 'unsafe-inline' https:; connect-src https: wss:; media-src https: blob:; frame-src https:; form-action https:; upgrade-insecure-requests; report-uri /i/csp-report; report-to csp-report; frame-ancestors 'none';
strict-transport-security
max-age=31536000
content-security-policy-report-only
base-uri 'self'; default-src 'none'; manifest-src *.aanmelder.nl; object-src 'none'; font-src 'self' data: *.aanmelder.nl *.aanmelderusercontent.nl fonts.gstatic.com; img-src blob: data: https:; worker-src blob: 'unsafe-eval' 'unsafe-inline' https:; script-src 'unsafe-eval' 'unsafe-inline' 'self' *.aanmelder.nl *.adyen.com cdnjs.cloudflare.com *.google.com *.google-analytics.com *.googletagmanager.com *.gstatic.com *.hsforms.com *.hsforms.net *.hs-scripts.com; style-src 'unsafe-inline' https:; connect-src 'self' *.aanmelder.nl wss://*.aanmelder.nl *.adyen.com *.google-analytics.com *.hsforms.com hubspot-forms-static-embed.s3.amazonaws.com wss://*.daily.co *.daily.co; media-src https: blob:; frame-src https:; form-action 'self' *.aanmelder.nl *.adyen.com *.google-analytics.com forms.hsforms.com; report-uri /i/csp-report; report-to csp-report;

Links to (1)

Linked from (1)