What powers wittchen.cz?
Last seen Sep 2026 · 26 technologies across 15 categories
Analytics
CDN
Cookie compliance
Ecommerce
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Payment processors
Performance
Programming languages
Security
Tag managers
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 86% phone
- 12% desktop
- 2% tablet
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.18 / 10 · ranked #3,147,813 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 450 ms |
| CLS | 0 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- CDN: Amazon CloudFront
- Weight: 4.8 MB · 141 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.26.12.139)
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Amazon Trust Services, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 16,264,407, 2 hosts
- Verified with: Google, Microsoft 365
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
- dropped Google Font API Jun 2026
- dropped Swiper Jun 2026
- detected Cart Functionality May 2026
- detected Google Font API Apr 2026
- detected core-js Jan 2026