What powers checkalc.com?
Last seen Jun 2026 · 14 technologies across 13 categories
Advertising
Google AdSense
since Jan 2019
Analytics
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Feb 2022
Cookie compliance
Funding Choices
since Dec 2022
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript graphics
Chart.js
since Jun 2020
Miscellaneous
PWA
since Aug 2022
Programming languages
Java
since Sep 2021
Security
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 100% phone
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.05 / 10 · ranked #11,714,246 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.5 s |
| INP | 150 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 2.2 MB · 181 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Snowplow Analytics Feb 2026
- dropped Microsoft ASP.NET Jan 2026
- detected Snowplow Analytics Dec 2025
- detected Microsoft ASP.NET Nov 2025
- dropped Snowplow Analytics Sep 2025