What powers castello.is?
Last seen Jun 2026 · 16 technologies across 10 categories
Analytics
Cloudflare Browser Insights
since Feb 2026
CDN
Cloudflare
since Oct 2020
CMS
Prismic
since Oct 2025
Issue trackers
Sentry
since Oct 2025
JavaScript frameworks
JavaScript libraries
Swiper
since Apr 2026
Miscellaneous
Performance
Priority Hints
since Oct 2025
Programming languages
Node.js
since Oct 2025
UI frameworks
Tailwind CSS
since Oct 2025
Audience
- 86% phone
- 14% desktop
Iceland
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.47 / 10 · ranked #6,814,167 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 125 ms |
| CLS | 0.5 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Icelandic
- CDN: Cloudflare
- Weight: 4.6 MB · 89 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Swiper Apr 2026
- dropped HSTS Mar 2026
- dropped Vercel Mar 2026
- detected Cloudflare Browser Insights Feb 2026
- detected HTTP/3 Feb 2026
- dropped Apollo Nov 2025
- dropped BugSnag Nov 2025
- dropped core-js Nov 2025
- dropped Facebook Pixel Nov 2025
- dropped Google Analytics Nov 2025
- dropped GraphQL Nov 2025
- dropped HTTP/3 Nov 2025
- dropped Netlify Nov 2025
- dropped React Router Nov 2025
- dropped TypeScript Nov 2025
- detected GSAP Oct 2025
- detected Next.js Oct 2025
- detected Next.js App Router Oct 2025
- detected Node.js Oct 2025
- detected Open Graph Oct 2025
- detected Priority Hints Oct 2025
- detected Prismic Oct 2025
- detected Sentry Oct 2025
- detected Tailwind CSS Oct 2025
- detected Vercel Oct 2025
- detected Webpack Oct 2025