What powers oksystem.com?
Last seen Aug 2026 · 9 technologies across 7 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Programming languages
PHP
since Jan 2019
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jun 2023
Web frameworks
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 68% phone
- 32% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.22 / 10 · ranked #1,231,496 of all domains
38 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.4 MB · 46 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: oksystem.cz
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 11,730,041, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted