What powers instacalc.com?
Last seen Jun 2026 · 22 technologies across 12 categories
Analytics
Clicky
since Jan 2019
Cloudflare Browser Insights
since Nov 2024
Google Analytics
since Jan 2019
Hotjar
since Jan 2019
Microsoft Clarity
since Mar 2023
PostHog
since Jan 2026
Smartlook
since Mar 2023
CDN
Cloudflare
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
Highlight.js
since Apr 2026
Miscellaneous
Performance
Priority Hints
since Dec 2023
Programming languages
Node.js
since Apr 2026
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
SvelteKit
since Apr 2026
Webmail
Google Workspace
since Aug 2022
Audience
- 65% desktop
- 35% phone
United States
India
United Kingdom
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.49 / 10 · ranked #902,692 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 6.9 MB · 713 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Firebase Jun 2026
- detected HSTS Jun 2026
- dropped Alpine.js May 2026
- dropped HSTS May 2026
- dropped jsDelivr May 2026
- dropped React May 2026
- detected Highlight.js Apr 2026
- detected Node.js Apr 2026
- detected Priority Hints Apr 2026
- detected Reveal.js Apr 2026
- detected Svelte Apr 2026
- detected SvelteKit Apr 2026
- detected Vite Apr 2026
- dropped Disqus Feb 2026
- dropped Google Forms Feb 2026
- detected Open Graph Feb 2026
- dropped Preline UI Feb 2026
- dropped Tailwind CSS Feb 2026
- dropped YouTube Feb 2026
- detected Google Font API Jan 2026
- detected PostHog Jan 2026
- dropped VWO Dec 2025