What powers arkcr.cz?
Last seen Aug 2026 · 25 technologies across 12 categories
Analytics
Google Analytics
since Apr 2019
CDN
CMS
Databases
MySQL
since Apr 2019
Font scripts
JavaScript frameworks
JavaScript libraries
Programming languages
UI frameworks
Video players
Web servers
Apache HTTP Server
since Jan 2019
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 60% desktop
- 40% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.36 / 10 · ranked #424,452 of all domains
49 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 19.2 MB · 35 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (83.167.246.70)
- DNS: ntalk.eu
- Email: Seznam Email
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 2,394,175, 4 hosts
- Verified with: Google
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
- detected Alpine.js Aug 2026
- detected Axios Aug 2026
- detected Bunny Aug 2026
- detected Bunny Fonts Aug 2026
- detected cdnjs Aug 2026
- detected Cloudflare Aug 2026
- dropped PWA Mar 2026