What powers tkaczik.cz?
Last seen Oct 2026 · 14 technologies across 10 categories
CDN
Cloudflare
since Nov 2023
Amazon SES
since Feb 2026
SparkPost
since Feb 2026
JavaScript libraries
Miscellaneous
Open Graph
since Feb 2026
PaaS
Amazon Web Services
since Feb 2026
Programming languages
PHP
since Jan 2019
UI frameworks
Video players
YouTube
since Feb 2026
Web frameworks
Nette Framework
since Feb 2026
Web servers
Nginx
since Feb 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 71% phone
- 29% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.65 / 10 · ranked #5,311,700 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 34.3 MB · 263 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Hetzner (91.99.119.229, IPv6)
- DNS: Cloudflare DNS
- Email: Seznam Email
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 18,222,209, 2 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 AlmaLinux Mar 2026
- dropped Apache HTTP Server Mar 2026
- dropped Cloudflare Bot Management Mar 2026
- dropped Cookie Script Mar 2026
- dropped core-js Mar 2026
- dropped Font Awesome Mar 2026
- dropped Google AdSense Mar 2026
- dropped Google Analytics Mar 2026
- dropped Google Tag Manager Mar 2026
- dropped jQuery UI Mar 2026
- dropped OpenSSL Mar 2026