What powers 
rete.cz?
Last seen Sep 2026 · 17 technologies across 9 categories
CDN
cdnjs
since Oct 2024
Cloudflare
since Oct 2024
Google Hosted Libraries
since Oct 2024
jQuery CDN
since Oct 2024
Font scripts
Font Awesome
since May 2023
JavaScript libraries
Operating systems
Ubuntu
since Feb 2019
Programming languages
PHP
since Feb 2019
UI frameworks
Video players
Web server extensions
Web servers
Apache HTTP Server
since Feb 2019
Nginx
since May 2021
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Blocked (was Allowed)
AI Crawlers
All crawlers blocked
Audience
- 77% phone
- 23% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.63 / 10 · ranked #797,873 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 0.4 MB · 32 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on RETE-AS (78.156.32.20)
- DNS: rete.cz
- Email: rete.cz
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 102,977, 19 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| live.rete.cz | 11 |
| polanecky.rete.cz | 5 |
| www.rete.cz | 5 |
| www.rms.rete.cz | 3 |