What powers blueref.pl?
Last seen Jun 2026 · 23 technologies across 13 categories
Analytics
Authentication
Clerk
since Mar 2026
CDN
Cloudflare
since Jun 2023
Development
Turbopack
since Mar 2026
Ecommerce
Cart Functionality
since Mar 2026
JavaScript frameworks
Miscellaneous
PaaS
Vercel
since Jun 2023
Performance
Priority Hints
since Mar 2026
Programming languages
Node.js
since Jun 2023
Security
Cloudflare Bot Management
since Mar 2026
HSTS
since Jun 2023
UI frameworks
Webmail
Microsoft 365
since Jun 2023
Audience
Poland
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.47 / 10 · ranked #6,759,217 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Polish
- CDN: Cloudflare
- Weight: 2.1 MB · 74 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Backbone.js Jun 2026
- dropped Bootstrap Jun 2026
- dropped jQuery Jun 2026
- dropped jQuery UI Jun 2026
- dropped Nginx Jun 2026
- dropped PWA Jun 2026
- dropped Select2 Jun 2026
- dropped Ubuntu Jun 2026
- dropped Underscore.js Jun 2026
- dropped Google Analytics Mar 2026
- dropped Sanity Mar 2026
- detected Backbone.js Oct 2025
- detected Bootstrap Oct 2025
- detected jQuery Oct 2025
- detected jQuery UI Oct 2025
- detected Nginx Oct 2025
- detected PWA Oct 2025
- detected Select2 Oct 2025
- detected Ubuntu Oct 2025
- detected Underscore.js Oct 2025