What powers concretecalculator.cc?
Last seen Jun 2026 · 9 technologies across 9 categories
A/B Testing
Convert
since Jun 2025
Advertising
Google AdSense
since Jun 2025
Analytics
Cloudflare Browser Insights
since Nov 2025
CDN
Cloudflare
since Jun 2025
Font scripts
Google Font API
since Jun 2025
JavaScript libraries
Miscellaneous
HTTP/3
since Jun 2025
Security
reCAPTCHA
since Jun 2025
Tag managers
Google Tag Manager
since Jun 2025
Audience
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.38 / 10 · ranked #40,865,505 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 1.4 MB · 94 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Tag Manager Feb 2026
- dropped Google Tag Manager Jan 2026
- dropped Microsoft ASP.NET Jan 2026
- detected Cloudflare Browser Insights Nov 2025
- detected Google Font API Nov 2025
- detected Microsoft ASP.NET Nov 2025
- dropped Google Font API Sep 2025