What powers validators.nl?

Last seen Aug 2026 · 31 technologies across 19 categories

Analytics

Google Analytics
since Feb 2019
Leadfeeder
since Oct 2022

CDN

Amazon CloudFront
since May 2019
Amazon S3
since Apr 2023
Cloudflare
since Nov 2021

CMS

Contentful
since Oct 2025

CRM

Salesforce
since Aug 2022

Font scripts

Google Font API
since Feb 2019

JavaScript frameworks

AngularJS
since Feb 2024
React
since May 2019
React Router v6
since Oct 2025

JavaScript libraries

jQuery v3.3.1
since Feb 2019
Preact
since Oct 2025

Marketing automation

HubSpot
since May 2019
MailChimp
since Aug 2022

Miscellaneous

HTTP/3
since Feb 2023
Open Graph
since Sep 2022

Operating systems

Ubuntu
since May 2023

PaaS

Amazon Web Services
since May 2019
Netlify
since Oct 2025

Performance

Priority Hints
since Sep 2023

Programming languages

Python
since Feb 2024

Security

HSTS
since May 2023

Translation

Weglot
since Oct 2025

UI frameworks

Bootstrap
since May 2023

Web frameworks

Django
since Feb 2024

Web servers

gunicorn v19.7.1
since Jul 2026
Nginx v1.25.0
since May 2019

Webmail

Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022

AI Crawlers

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

Training crawlers

  • CCBot Allowed
  • ClaudeBot Allowed
  • Google-Extended Allowed
  • GPTBot Allowed

Search and AI assistants

  • PerplexityBot Allowed

User-request fetchers

  • ChatGPT-User Allowed

The other 27 AI crawlers we track are not mentioned and stay allowed by default.

  • Sep 2026 ccbot added to robots.txt
  • Sep 2026 chatgpt-user added to robots.txt
  • Sep 2026 perplexitybot added to robots.txt
  • Sep 2026 google-extended added to robots.txt
  • Sep 2026 anthropic-ai added to robots.txt
  • Sep 2026 gptbot added to robots.txt

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Standards: llms.txt

Full breakdown

Audience

  • 60% phone
  • 36% desktop
  • 4% tablet
  • Netherlands
  • Germany
  • Belgium
  • United Kingdom
  • Spain
  • Kenya

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

Open Page Rank

3.52 / 10 · ranked #875,400 of all domains

35 referring domains · OpenPageRank

Core Web Vitals

LCP1.8 s
INP100 ms
CLS0
TTFB1000 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Dutch
  • CDN: Cloudflare
  • Weight: 5.9 MB · 51 requests
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

From the homepage's own structured data (Sep 2026).

Infrastructure

  • Email: no MX record returned
  • Email security: DNSSEC signed
  • SSL: Google Trust Services, ECDSA P256, expires Dec 2026
  • Common Crawl link graph: rank 10,063,614, 4 hosts

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
www.validators.nl 14
valueflow.validators.nl 11
survey.validators.nl 8
eyecoding.hva.validators.nl 6
questionflow.hva.validators.nl 6
eyecoding.validators.nl 5
questionflow.validators.nl 4

Full technology history →
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