What powers rfccalcular.com?
Last seen Jun 2026 · 18 technologies across 14 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Analytics
since Jul 2025
Caching
CDN
Cloudflare
since Jul 2025
CMS
Databases
MySQL
since Jun 2026
Font scripts
Google Font API
since Jul 2025
Twitter Emoji (Twemoji)
since Jun 2026
Miscellaneous
Performance
Priority Hints
since Jun 2026
Programming languages
PHP
since Jun 2026
SEO
UI frameworks
Tailwind CSS
since Jul 2025
Video players
YouTube
since Jul 2025
WordPress plugins
WordPress themes
Zakra
since Jun 2026
Audience
- 63% phone
- 37% desktop
Mexico
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.10 / 10 · ranked #113,716,292 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 0.5 MB · 19 requests
- WordPress theme: zakra · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected MonsterInsights Jun 2026
- detected MySQL Jun 2026
- detected Open Graph Jun 2026
- detected PHP Jun 2026
- detected Priority Hints Jun 2026
- detected RSS Jun 2026
- detected Twitter Emoji (Twemoji) Jun 2026
- detected WordPress Jun 2026
- detected Yoast SEO Jun 2026
- detected Zakra Jun 2026
- detected Cloudflare Browser Insights Nov 2025