What powers knizecidvur.cz?
Last seen Oct 2026 · 27 technologies across 19 categories
Advertising
Analytics
CDN
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.58 / 10 · ranked #5,851,165 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.2 MB · 64 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on IP4ISP (188.120.193.198, IPv6)
- DNS: onlinehosting.cz
- Email: Seznam Email
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P384, expires Jan 2027
- Common Crawl link graph: rank 42,028,430, 4 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Complianz Sep 2026
- detected CookieYes Aug 2026
- detected Microsoft Advertising Aug 2026
- dropped Really Simple SSL & Security Jul 2026
- dropped Google Font API Jun 2026
- detected WP-Optimize May 2026
- detected cdnjs Apr 2026
- detected Cloudflare Apr 2026
- detected Nette Framework Apr 2026
- dropped reCAPTCHA Apr 2026
- detected Astra Mar 2026
- detected Complianz Mar 2026
- detected Google Font API Mar 2026
- detected jQuery Mar 2026
- detected jQuery Migrate Mar 2026
- detected Lightbox Mar 2026
- detected MySQL Mar 2026
- detected Open Graph Mar 2026
- detected Preact Mar 2026
- detected Priority Hints Mar 2026
- detected Really Simple SSL & Security Mar 2026
- detected RSS Mar 2026
- detected Smart Slider 3 Mar 2026
- detected Spectra Mar 2026
- detected Twitter Emoji (Twemoji) Mar 2026
- detected WooCommerce Mar 2026
- detected WordPress Mar 2026
- detected WordPress Block Editor Mar 2026
- detected Yoast SEO Mar 2026
- detected Amazon SES Jan 2026
- detected Amazon Web Services Jan 2026