What powers zsjm.cz?
Last seen Sep 2026 · 21 technologies across 11 categories
CDN
Editors
Font scripts
Google Font API
since Aug 2022
JavaScript frameworks
AlertifyJS
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Feb 2023
Programming languages
PHP
since Aug 2022
Rich text editors
UI frameworks
Web servers
Apache HTTP Server
since Aug 2022
Webmail
Google Workspace
since Aug 2022
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 checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 69% phone
- 32% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.27 / 10 · ranked #9,090,728 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 9.5 MB · 107 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on WEDOS (46.28.107.91)
- DNS: wedos.com
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Jan 2027
- Common Crawl link graph: rank 30,271,221, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted