What powers c4ir.vn?
Last seen Jun 2026 · 29 technologies across 18 categories
Analytics
Burst
since May 2026
Google Analytics
since Oct 2025
Caching
Redis Object Cache
since May 2026
CDN
jsDelivr
since May 2026
CMS
Databases
Font scripts
Hosting
Hostinger
since Jun 2026
Hosting panels
Plesk
since May 2026
JavaScript graphics
Chart.js
since May 2026
JavaScript libraries
Marketing automation
Sendinblue
since Jun 2026
Miscellaneous
Performance
Priority Hints
since Dec 2025
Programming languages
Security
HSTS
since May 2026
UI frameworks
Tailwind CSS
since May 2026
Web servers
WordPress plugins
Contact Form 7
since Oct 2025
Litespeed Cache
since Jun 2026
RankMath SEO
since Oct 2025
WP-Optimize
since May 2026
Audience
- 85% desktop
- 15% phone
Vietnam
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.00 / 10 · ranked #12,512,684 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Vietnamese
- Weight: 19.9 MB · 108 requests
- WordPress theme: newspaper · 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
- detected Hostinger Jun 2026
- detected LiteSpeed Jun 2026
- detected Litespeed Cache Jun 2026
- detected Sendinblue Jun 2026
- dropped Underscore.js Jun 2026
- dropped WP Rocket Jun 2026
- dropped LazySizes May 2026
- dropped HTTP/3 Feb 2026
- detected Twitter Emoji (Twemoji) Feb 2026
- dropped WordPress Super Cache Feb 2026
- detected WP Rocket Feb 2026
- detected Nginx Jan 2026
- dropped core-js Dec 2025
- dropped Glider.js Dec 2025
- dropped GTranslate Dec 2025
- dropped Moment.js Dec 2025
- dropped Plyr Dec 2025
- detected Priority Hints Dec 2025
- dropped React Dec 2025
- dropped Vimeo Dec 2025
- dropped YouTube Dec 2025
- detected WordPress Super Cache Nov 2025