What powers 4i21.com.br?
Last seen Jun 2026 · 13 technologies across 9 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
CDN
Cloudflare
since Mar 2025
Ecommerce
Cart Functionality
since Jan 2026
Nuvemshop
since Mar 2025
Font scripts
Google Font API
since Nov 2025
JavaScript libraries
Live chat
WhatsApp Business Chat
since Mar 2025
Miscellaneous
Open Graph
since Mar 2025
Performance
Priority Hints
since Sep 2025
Security
Cloudflare Bot Management
since Mar 2025
HSTS
since Mar 2025
Audience
Brazil
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 1 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Portuguese
- CDN: Cloudflare
- Weight: 0.6 MB · 16 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cart Functionality Jan 2026
- detected Cloudflare Browser Insights Nov 2025
- detected Google Font API Nov 2025
- detected Priority Hints Sep 2025