What powers bu1.cz?
Last seen Jun 2026 · 57 technologies across 25 categories
Analytics
Google Analytics
since Jan 2019
Google Analytics Enhanced eCommerce
since Jan 2019
Microsoft Clarity
since Oct 2023
TikTok Pixel
since Apr 2023
CDN
Cloudflare
since Oct 2023
CMS
Databases
MySQL
since Jan 2019
Ecommerce
SparkPost
since Aug 2022
Font scripts
Font Awesome
since Jul 2020
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
Marketing automation
Klaviyo
since Nov 2024
Miscellaneous
Mobile frameworks
Operating systems
Debian
since Jan 2019
Payment processors
American Express
since Oct 2023
Apple Pay
since Oct 2023
Google Pay
since Mar 2025
Mastercard
since Oct 2023
PayPal
since Oct 2023
Shop Pay
since Aug 2025
Visa
since Oct 2023
Performance
Priority Hints
since Oct 2023
Photo galleries
PhotoSwipe
since Sep 2022
Programming languages
PHP
since Jan 2019
Reviews
Judge.me
since Sep 2024
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jan 2019
UI frameworks
Animate.css
since Jul 2020
Bootstrap
since Jul 2020
CivicTheme
since Jan 2023
Material Design Lite
since Jul 2020
Tailwind CSS
since Apr 2022
Video players
YouTube
since Mar 2025
Web servers
Webmail
Apple iCloud Mail
since Nov 2024
Google Workspace
since Aug 2022
WordPress plugins
RankMath SEO
since Nov 2022
wpBakery
since Jun 2021
Audience
- 92% phone
- 8% desktop
Czechia
Slovakia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.40 / 10 · ranked #2,678,562 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 7.5 MB · 462 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.bu1.cz | 47 |
| bu1.cz | 31 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Shop Pay Aug 2025