What powers ref.edu.vn?
Last seen Jun 2026 · 15 technologies across 10 categories
Analytics
Font scripts
JavaScript libraries
OWL Carousel
since Jan 2019
SweetAlert
since Jan 2019
Live chat
Facebook Chat Plugin
since Apr 2023
Maps
Google Maps
since Jan 2019
Marketing automation
GetResponse
since Apr 2023
Miscellaneous
Open Graph
since Apr 2023
Programming languages
UI frameworks
Web servers
Audience
Vietnam
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.29 / 10 · ranked #52,701,120 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Vietnamese
- Weight: 4.9 MB · 76 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Google Font API Jun 2026
- dropped HTTP/3 Jun 2026
- dropped LiteSpeed Jun 2026
- detected Apache HTTP Server May 2026
- detected Google Font API Mar 2026
- dropped Facebook Login Dec 2025
- dropped Google Font API Dec 2025
- dropped Cloudflare Nov 2025