What powers roska-cb.cz?
Last seen Aug 2026 · 23 technologies across 11 categories
Analytics
CDN
jsDelivr
since Aug 2022
CMS
October CMS
since Aug 2022
JavaScript libraries
Isotope
since Aug 2022
prettyPhoto
since Aug 2022
Maps
Google Maps
since May 2021
Miscellaneous
Open Graph
since Sep 2022
Prism
since Aug 2022
Programming languages
UI frameworks
Web frameworks
Laravel
since Aug 2022
Web servers
Widgets
ShareThis
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.68 / 10 · ranked #2,199,459 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.3 MB · 101 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WEB4U (81.91.86.11)
- DNS: Active 24
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 7,475,029, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Amazon ALB Oct 2025
- dropped Amazon Web Services Oct 2025