What powers zsps-opava.cz?
Last seen Sep 2026 · 12 technologies across 8 categories
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2022
PWA
since Dec 2023
Payment processors
PayPal
since Nov 2024
Programming languages
PHP
since Jan 2022
Security
reCAPTCHA
since Jul 2026
Web frameworks
Nette Framework
since Jan 2022
Web servers
Nginx
since Jan 2022
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.74 / 10 · ranked #4,726,928 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.1 MB · 42 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on SUPERNETWORK _ (37.235.104.239, IPv6)
- DNS: websupport.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 3,780,272, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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