What powers x-challenge.cz?
Last seen Oct 2026 · 52 technologies across 25 categories
Analytics
CDN
CMS
Customer data platform
Databases
Documentation
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
Page builders
Performance
Programming languages
Search engines
Security
Tag managers
UI frameworks
Video players
Web frameworks
Web servers
WordPress plugins
WordPress themes
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 Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.11 / 10 · ranked #3,306,244 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 2.1 MB · 50 requests
- WordPress theme: kadence · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- X-Challenge
- Profiles: Facebook
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on SUPERNETWORK _ (37.235.104.77, IPv6)
- DNS: vas-hosting.com
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 19,142,804, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.x-challenge.cz | 27 |
| x-challenge.cz | 22 |
| apka.x-challenge.cz | 13 |
| app.x-challenge.cz | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Bot Management Sep 2026
- dropped Complianz Aug 2026
- dropped Google Tag Manager for WordPress Aug 2026
- dropped Hostinger Aug 2026
- dropped Hostinger CDN Aug 2026
- dropped HTTP/3 Aug 2026
- dropped Litespeed Cache Aug 2026
- dropped Microsoft Advertising Aug 2026
- dropped Snowplow Analytics Aug 2026
- detected Apache HTTP Server Jul 2026
- detected jsDelivr Jul 2026
- detected Google Tag Manager for WordPress Jun 2026
- dropped Elementor Apr 2026
- dropped Essential Addons for Elementor Apr 2026
- dropped Hello Elementor Apr 2026
- dropped jQuery UI Apr 2026
- detected Litespeed Cache Apr 2026
- dropped PhotoSwipe Apr 2026
- dropped jsDelivr Mar 2026
- dropped Select2 Mar 2026