What powers 
spsejecna.cz?
Last seen Sep 2026 · 21 technologies across 12 categories
CDN
JavaScript frameworks
JavaScript graphics
JavaScript libraries
LMS
Miscellaneous
Programming languages
Security
UI frameworks
Video players
Web servers
Webmail
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 68% phone
- 31% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.45 / 10 · ranked #410,135 of all domains
78 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 0.8 MB · 27 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Střední průmyslová škola elektrotechnická Ječná
- Founded: 1996
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Registered May 1997 (29 years) via INTERNET CZ, a.s., renews Oct 2030
- Hosted on INTERCONNECT (185.14.234.26)
- DNS: forpsi.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Alpiro s.r.o., RSA 2048, wildcard, expires Mar 2027
- Common Crawl link graph: rank 7,449,641, 6 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| moodle.spsejecna.cz | 13 |
| moodle3.spsejecna.cz | 11 |
| www.spsejecna.cz | 10 |
Full technology history →
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