What powers run4fun.cz?
Last seen Sep 2026 · 15 technologies across 9 categories
Analytics
Authentication
Ecommerce
JavaScript libraries
Miscellaneous
Performance
Programming languages
UI frameworks
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Sep 2026 Content Signals changed
AI Crawlers
No AI crawlers blocked
Standards: Content Signals
Audience
- 76% phone
- 24% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.21 / 10 · ranked #3,076,873 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.9 MB · 54 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Run4fun
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on VSHOSTING (185.64.219.37)
- DNS: myshoptet.com
- Email: myshoptet.com
- Email security: SPF (hard fail), no DMARC record
- SSL: ZeroSSL, ECDSA P384, expires Oct 2026
- Common Crawl link graph: rank 17,741,706, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Analytics May 2026
- detected HTTP/3 May 2026
- detected OpenResty May 2026