What powers c-energy.cz?
Last seen Oct 2026 · 11 technologies across 8 categories
Comment systems
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
SEO
Webmail
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
- 51% desktop
- 49% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.03 / 10 · ranked #1,543,189 of all domains
25 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
2 keywords in Google's top 30
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Czech
- Weight: 4.9 MB · 24 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- C-Energy
- Founded: 1997
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on AS35236 - UVT Internet s.r.o. (185.205.137.16, IPv6)
- DNS: pipni.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, ECDSA P384, expires Dec 2026
- Common Crawl link graph: rank 16,198,667, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- detected jQuery Jan 2026
- detected jQuery UI Jan 2026
- detected Leaflet Jan 2026
- detected Livefyre Jan 2026
- dropped Apache HTTP Server Dec 2025
- dropped Bootstrap Dec 2025
- dropped Debian Dec 2025
- dropped FancyBox Dec 2025
- dropped Google Font API Dec 2025
- dropped jQuery Dec 2025