What powers zuss.cz?
Last seen Oct 2026 · 18 technologies across 14 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Programming languages
Security
Web servers
Webmail
WordPress plugins
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
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.46 / 10 · ranked #6,889,674 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 6.4 MB · 62 requests
- WordPress theme: breakdance-zero · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- ZUŠŠ (Základní umělecká škola, Praha 7, Šimáčkova 16 on Wikidata)
- Founded: 1996
- Industry: Education (declares
EducationalOrganization) - Country: Czech Republic
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on BLINDSPOT (91.239.201.15, IPv6)
- DNS: thinline.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 17,605,303, 2 hosts
- Verified with: Apple Business, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Really Simple SSL & Security Aug 2026
- detected Twitter Emoji (Twemoji) Jan 2026