What powers happy.engineering?
Last seen Jun 2026 · 17 technologies across 10 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
Caching
Varnish
since Sep 2025
CDN
Cloudflare
since Sep 2025
Fastly
since Sep 2025
JavaScript frameworks
Miscellaneous
PaaS
GitHub Pages
since Sep 2025
Performance
Priority Hints
since Sep 2025
Programming languages
Node.js
since Sep 2025
SEO
Ahrefs
since Oct 2025
UI frameworks
Headless UI
since Sep 2025
Tailwind CSS
since Sep 2025
Audience
- 72% desktop
- 28% phone
Japan
Singapore
Hong Kong SAR China
China
United States
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.46 / 10 · ranked #935,720 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 1.3 MB · 13 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| happy.engineering | 15 |
| app.happy.engineering | 4 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Stripe Feb 2026
- dropped Svelte Feb 2026
- detected Cloudflare Browser Insights Nov 2025
- detected Ahrefs Oct 2025