What powers prep4u.vn?
Last seen Jun 2026 · 28 technologies across 13 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Analytics
since May 2025
Authentication
Google Sign-in
since May 2025
CDN
cdnjs
since May 2025
Cloudflare
since May 2025
Google Hosted Libraries
since May 2025
jsDelivr
since May 2025
Font scripts
Google Font API
since May 2025
JavaScript frameworks
Inertia.js
since Dec 2025
JavaScript libraries
Axios
since May 2025
Clipboard.js
since May 2025
FilePond
since May 2025
Laravel Echo
since May 2025
Swiper
since May 2025
Miscellaneous
HTTP/3
since May 2025
Open Graph
since May 2025
Performance
Priority Hints
since Oct 2025
Programming languages
PHP
since May 2025
Rich text editors
CKEditor
since Aug 2025
Security
reCAPTCHA
since May 2025
Tag managers
Google Tag Manager
since May 2025
Web frameworks
Audience
- 79% desktop
- 21% phone
Vietnam
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 2.4 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Vietnamese
- CDN: Cloudflare
- Weight: 4.9 MB · 79 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Laravel Echo Jun 2026
- dropped Laravel Echo May 2026
- detected Inertia.js Dec 2025
- dropped AOS Nov 2025
- dropped Chart.js Nov 2025
- detected Cloudflare Browser Insights Nov 2025
- dropped Lightbox Oct 2025
- detected CKEditor Aug 2025
- detected core-js Aug 2025
- detected Facebook Pixel Aug 2025