What powers fieldcalc.app?
Last seen Jun 2026 · 8 technologies across 7 categories
CDN
Cloudflare
since Feb 2025
JavaScript libraries
Swiper
since Feb 2025
Miscellaneous
LottieFiles
since Feb 2025
PWA
since Oct 2025
Operating systems
Ubuntu
since Feb 2025
Programming languages
Node.js
since Feb 2025
Web frameworks
Express
since Oct 2025
Web servers
Audience
- 100% phone
India
Iran
Morocco
Algeria
Afghanistan
Malawi
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.13 / 10 · ranked #10,775,941 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 9.3 MB · 127 requests
- 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
- dropped Google Analytics Nov 2025
- dropped Next.js Nov 2025
- dropped Next.js App Router Nov 2025
- dropped Open Graph Nov 2025
- dropped Priority Hints Nov 2025
- dropped React Nov 2025
- dropped Webpack Nov 2025
- detected Express Oct 2025
- detected PWA Oct 2025