What powers 4keepers.com?
Last seen Jun 2026 · 17 technologies across 13 categories
Advertising
Microsoft Advertising
since Feb 2026
Analytics
Google Analytics
since Oct 2023
Microsoft Clarity
since Aug 2025
Comment systems
Ecommerce
Cart Functionality
since Oct 2023
Font scripts
Google Font API
since Nov 2024
JavaScript frameworks
Vue.js
since May 2026
JavaScript libraries
Maps
Miscellaneous
Open Graph
since Nov 2024
PWA
since Jan 2026
Security
HSTS
since Jan 2026
Tag managers
Google Tag Manager
since Oct 2023
Web servers
Nginx
since Jan 2026
Webmail
Google Workspace
since Oct 2023
Audience
- 79% phone
- 21% desktop
Poland
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.28 / 10 · ranked #8,891,658 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Polish
- Weight: 15.5 MB · 165 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Vue.js May 2026
- detected Google Font API Mar 2026
- dropped Apache HTTP Server Feb 2026
- dropped Bootstrap Feb 2026
- dropped Chart.js Feb 2026
- dropped FancyBox Feb 2026
- dropped Google Font API Feb 2026
- dropped Google Hosted Libraries Feb 2026
- dropped jQuery Feb 2026
- dropped jQuery Migrate Feb 2026
- dropped jQuery UI Feb 2026
- dropped LazySizes Feb 2026
- detected Microsoft Advertising Feb 2026
- dropped MySQL Feb 2026
- dropped OWL Carousel Feb 2026
- dropped PHP Feb 2026
- dropped PrestaShop Feb 2026
- dropped Select2 Feb 2026
- detected Cart Functionality Jan 2026
- detected HSTS Jan 2026
- detected Leaflet Jan 2026
- detected Livefyre Jan 2026
- detected Nginx Jan 2026
- detected PWA Jan 2026
- detected Swiper Jan 2026
- detected Microsoft Clarity Aug 2025