What powers haaltheorie.nl?

Last seen Aug 2026 · 25 technologies across 14 categories

Advertising

Microsoft Advertising
since Feb 2026

Analytics

Contentsquare
since Feb 2026
Google Analytics
since Feb 2026
Hotjar
since Feb 2026
TikTok Pixel
since Jun 2026

CDN

cdnjs
since Feb 2026
Cloudflare
since Feb 2026

Cookie compliance

Cookiebot v1
since Feb 2026

Editors

CodeMirror v5.65.13
since Feb 2026

Font scripts

Google Font API
since Mar 2026

JavaScript graphics

MathJax
since Feb 2026

JavaScript libraries

core-js v3.26.1
since Feb 2026
FancyBox v2.1.4
since Feb 2026
jQuery v3.7.0
since Feb 2026
jQuery Migrate v1.4.1
since Feb 2026
jQuery UI v1.13.2
since Feb 2026
Lodash v4.17.21
since Feb 2026
Moment.js v2.29.4
since Feb 2026

LMS

LearnWorlds v4.140.0
since Feb 2026

Maps

Google Maps
since Jun 2026

Miscellaneous

Open Graph
since Feb 2026

Payment processors

Stripe v3
since Feb 2026

Security

HSTS
since Feb 2026
reCAPTCHA
since Feb 2026

Tag managers

Google Tag Manager
since Feb 2026

AI Crawlers

Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Aug 2026.

Training crawlers

  • Applebot-Extended Allowed
  • Bytespider Allowed
  • CCBot Allowed
  • ClaudeBot Allowed
  • FacebookBot Allowed
  • Google-Extended Allowed
  • GPTBot Allowed
  • meta-externalagent Allowed

Search and AI assistants

  • Applebot Allowed
  • OAI-SearchBot Allowed
  • PerplexityBot Allowed
  • YouBot Allowed

User-request fetchers

  • ChatGPT-User Allowed
  • MistralAI-User Allowed
  • Perplexity-User Allowed

The other 18 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

  • robots.txt found
  • llms.txt not checked
  • ai.txt not found

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • 61% phone
  • 32% desktop
  • 7% tablet
  • Netherlands

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

0.43 / 10 · ranked #31,317,005 of all domains

0 referring domains · OpenPageRank

Core Web Vitals

LCP1.7 s
INP100 ms
CLS0.05
TTFB300 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Dutch
  • CDN: Cloudflare
  • Weight: 7.4 MB · 194 requests
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Aug 2026.

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