What powers 2zsfm.cz?
Last seen Oct 2026 · 17 technologies across 12 categories
Analytics
CMS
Font scripts
JavaScript graphics
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
Web frameworks
Web servers
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
- 88% phone
- 12% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.58 / 10 · ranked #5,850,172 of all domains
5 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 1.5 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 5.0 MB · 53 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 27,062,686, 2 hosts
DNS records as swept Oct 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Facebook Login Oct 2026
- dropped Google Hosted Libraries Oct 2026
- dropped Modernizr Oct 2026
- dropped Open Graph Oct 2026
- dropped Ubuntu Oct 2026
- detected Antee IPO Sep 2026
- detected Chart.js Sep 2026
- detected FancyBox Sep 2026
- detected Google Font API Sep 2026
- detected HSTS Sep 2026
- detected jQuery Migrate Sep 2026
- detected jQuery UI Sep 2026
- detected Matomo Analytics Sep 2026
- detected Nette Framework Sep 2026
- detected Priority Hints Sep 2026
- detected reCAPTCHA Sep 2026
- detected RSS Sep 2026
- detected Select2 Sep 2026