What powers zsstepanov.cz?
Last seen Aug 2026 · 12 technologies across 9 categories
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
JavaScript frameworks
GSAP
since Oct 2020
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Oct 2020
Security
HSTS
since Sep 2022
Web frameworks
Nette Framework
since Oct 2020
Web servers
Apache HTTP Server
since Oct 2020
Webmail
Google Workspace
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 79% phone
- 21% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.66 / 10 · ranked #5,255,783 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.1 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 1.3 MB · 46 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SATT-AS (31.31.239.206)
- DNS: forpsi.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 10,379,655, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped jsDelivr Jul 2026
- dropped libphonenumber Jul 2026
- dropped Google Tag Manager Jun 2026
- dropped Google Analytics Apr 2026
- detected Google Analytics Feb 2026
- detected libphonenumber Feb 2026