What powers vcalc.com?
Last seen Jun 2026 · 13 technologies across 10 categories
Analytics
Quantcast Measure
since Dec 2018
CDN
Font scripts
Font Awesome
since Apr 2018
JavaScript graphics
JavaScript libraries
Programming languages
Java
since Jun 2018
UI frameworks
Web frameworks
ZK
since Nov 2019
Web servers
Webmail
Google Workspace
since Aug 2022
Audience
- 66% phone
- 33% desktop
- 1% tablet
Canada
New Zealand
United States
India
Germany
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.95 / 10 · ranked #606,423 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 1.2 MB · 31 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| vcalc.com | 13 |
| www.vcalc.com | 11 |