What powers sdas.cz?
Last seen Aug 2026 · 15 technologies across 12 categories
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Editors
Font scripts
Font Awesome
since Apr 2020
JavaScript frameworks
React
since Jul 2021
JavaScript libraries
Miscellaneous
Babel
since Apr 2020
Operating systems
Windows Server
since Apr 2020
PaaS
Azure
since Aug 2022
UI frameworks
Bootstrap
since Apr 2020
Web frameworks
Microsoft ASP.NET
since Apr 2020
Web servers
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 82% phone
- 18% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.57 / 10 · ranked #391,315 of all domains
61 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 10.8 MB · 41 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on TPS-AS Telco Pro Services, a.s. (89.111.69.203)
- DNS: Azure DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: DigiCert, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 1,227,789, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sdas.cz | 14 |
| priroda.sdas.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Polyfill May 2026