What powers duplex.cz?
Last seen Jun 2026 · 30 technologies across 17 categories
Analytics
Cloudflare Browser Insights
since Apr 2026
Google Analytics
since Jan 2019
CDN
CMS
WordPress
since Jan 2019
Databases
MySQL
since Jan 2019
Ecommerce
Cart Functionality
since Sep 2024
WooCommerce
since Jan 2019
Google Workspace
since Aug 2022
Font scripts
Font Awesome
since Jan 2019
JavaScript frameworks
Backbone.js
since Apr 2022
JavaScript libraries
Swiper
since Sep 2024
Marketing automation
MailChimp
since Jan 2019
Miscellaneous
PaaS
Amazon Web Services
since May 2022
Performance
Priority Hints
since Jan 2025
Programming languages
PHP
since Jan 2019
Security
HSTS
since Sep 2022
UI frameworks
WordPress plugins
Audience
- 82% phone
- 18% desktop
Czechia
Israel
Slovakia
Germany
United Kingdom
France
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.89 / 10 · ranked #662,719 of all domains
59 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 17.5 MB · 89 requests
- WordPress theme: duplexclub · all themes
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Backbone.js Jun 2026
- detected Underscore.js Jun 2026
- dropped Nginx May 2026
- detected Cloudflare Browser Insights Apr 2026
- dropped Contact Form 7 Apr 2026
- detected HSTS Apr 2026
- detected HTTP/3 Apr 2026
- dropped jQuery UI Apr 2026
- dropped New Relic Oct 2025
- detected Priority Hints Oct 2025
- dropped Stripe Aug 2025
- dropped WooCommerce Stripe Payment Gateway Aug 2025