What powers siser.cz?
Last seen Jun 2026 · 15 technologies across 10 categories
Analytics
Cloudflare Browser Insights
since Apr 2026
CDN
Cloudflare
since Apr 2026
Google Hosted Libraries
since Nov 2022
Ecommerce
OXID eShop
since Nov 2022
Font scripts
Google Font API
since Nov 2022
JavaScript libraries
Live chat
Miscellaneous
HTTP/3
since Apr 2026
Open Graph
since Nov 2022
Programming languages
PHP
since Nov 2022
Security
HSTS
since Nov 2022
Webmail
Microsoft 365
since May 2025
Audience
Czechia
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.00 / 10 · ranked #12,512,700 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- CDN: Cloudflare
- Weight: 1.6 MB · 62 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- dropped Nginx May 2026