What powers vrky.cz?
Last seen Sep 2026 · 22 technologies across 14 categories
Analytics
Google Analytics
since Jun 2020
Linkedin Insight Tag
since Aug 2025
Snowplow Analytics
since Jul 2023
Authentication
Facebook Login
since Jul 2021
Cart abandonment
OptiMonk
since Jun 2026
CDN
Cloudflare
since Aug 2025
Ecommerce
Shoptet
since Jun 2020
Font scripts
Google Font API
since Jun 2020
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Apr 2025
Programming languages
PHP
since Jun 2020
Security
Cloudflare Bot Management
since Aug 2025
Tag managers
Google Tag Manager
since Jul 2021
UI frameworks
Web servers
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
- 78% phone
- 23% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.16 / 10 · ranked #3,192,107 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 4.0 MB · 125 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on SHOPTET (185.184.254.10)
- DNS: forpsi.cz
- Email: forpsi.com
- Email security: SPF (neutral), DMARC monitor only, DNSSEC signed
- Common Crawl link graph: rank 16,606,791, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Cart Functionality Sep 2026
- detected Google Font API Sep 2026
- detected Gravatar Sep 2026
- detected Slick Sep 2026
- dropped Google Font API Aug 2026
- detected Google Font API Jun 2026
- detected OptiMonk Jun 2026
- detected HTTP/3 May 2026
- detected OpenResty May 2026
- detected Cart Functionality Apr 2026
- dropped Cart Functionality Dec 2025
- dropped Google Analytics Enhanced eCommerce Dec 2025