What powers 
sps.cz?
Last seen Oct 2026 · 14 technologies across 12 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
Web frameworks
Web servers
Webmail
Widgets
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 57% phone
- 43% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.93 / 10 · ranked #254,453 of all domains
113 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.4 MB · 33 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Registered Aug 1998 (28 years), renews Oct 2026
- Hosted on MASTER-AS MasterDC s.r.o. (81.31.46.241)
- DNS: web4u.cz
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 538,046, 5 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted