What powers piazza.cz?
Last seen Oct 2026 · 22 technologies across 18 categories
Analytics
Caching
CMS
Cookie compliance
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
Tag managers
Web server extensions
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
- 73% phone
- 27% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.80 / 10 · ranked #1,983,695 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Czech (Czechia)
- Weight: 2.2 MB · 80 requests
- WordPress theme: congusto · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Piazza
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on SAVVY-AS www.savvy.cz (193.19.178.133)
- DNS: regzone.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 26,537,392, 2 hosts
- Verified with: Meta Business, 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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Recent changes
- dropped CentOS Sep 2026
- detected AlmaLinux Aug 2026
- detected WordPress Super Cache Aug 2026
- dropped WordPress Super Cache Jun 2026