What powers okskoleni.cz?
Last seen Sep 2026 · 13 technologies across 8 categories
Advertising
Microsoft Advertising
since Aug 2025
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Programming languages
PHP
since Feb 2019
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Apr 2023
Web frameworks
Webmail
Microsoft 365
since Apr 2023
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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 54% desktop
- 37% phone
- 9% tablet
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.20 / 10 · ranked #1,261,703 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 5.0 MB · 73 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on QUANTCOM-AS Quantcom a.s. (193.222.130.7)
- DNS: oksystem.cz
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 1,956,127, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Smartsupp Aug 2026
- detected core-js Jul 2026
- detected Google Tag Manager Jul 2026
- detected HSTS Jul 2026
- detected jQuery Jul 2026
- detected jQuery UI Jul 2026
- detected Lightbox Jul 2026
- detected Marked Jul 2026
- detected Microsoft 365 Jul 2026
- detected Microsoft Advertising Jul 2026
- detected Nette Framework Jul 2026
- detected Open Graph Jul 2026
- detected PHP Jul 2026
- detected PWA Jul 2026