What powers erf1.nl?
Last seen Jun 2026 · 33 technologies across 17 categories
Analytics
Cloudflare Browser Insights
since Apr 2026
Google Analytics
since Jul 2021
CDN
Cloudflare
since Feb 2024
Unpkg
since Jul 2021
CMS
WordPress
since May 2019
Databases
MySQL
since May 2019
Ecommerce
Cart Functionality
since Jul 2022
Font scripts
Google Font API
since Jul 2021
JavaScript libraries
Tippy.js
since Apr 2024
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Sep 2023
Programming languages
PHP
since May 2019
Security
Cloudflare Turnstile
since Sep 2025
UI frameworks
Bootstrap
since May 2019
Video players
YouTube
since Jul 2024
Webmail
Google Workspace
since Aug 2022
WordPress plugins
Smart Slider 3
since Nov 2024
The Events Calendar
since Jul 2022
W3 Total Cache
since Jul 2021
WPForms
since Feb 2024
WordPress themes
Audience
Netherlands
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.66 / 10 · ranked #2,229,034 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Dutch (Netherlands)
- CDN: Cloudflare
- Weight: 2.3 MB · 120 requests
- WordPress theme: blocksy (child: blocksy-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped core-js Jun 2026
- dropped Moment.js Jun 2026
- dropped React Jun 2026
- dropped Nginx May 2026
- detected Unpkg May 2026
- detected Cloudflare Browser Insights Apr 2026
- detected HTTP/3 Apr 2026
- detected The Events Calendar Apr 2026
- dropped reCAPTCHA Mar 2026
- detected Cloudflare Feb 2026
- detected core-js Feb 2026
- detected Moment.js Feb 2026
- detected Cloudflare Turnstile Sep 2025
- dropped The Events Calendar Sep 2025