What powers chkt.cz?
Last seen Aug 2026 · 18 technologies across 14 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Live chat
Miscellaneous
Programming languages
Security
Static site generator
Tag managers
Web servers
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 found
- ai.txt not found
Content Signals:
search=yes ai-train=yes ai-input=yes declared in robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, Content Signals
Audience
- 77% phone
- 23% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.52 / 10 · ranked #868,698 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 0.1 MB · 12 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Industry: Home and construction (declares
HVACBusiness)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.55.92, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 16,916,799, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted