What powers gerbrich.cz?
Last seen Aug 2026 · 20 technologies across 10 categories
Analytics
Authentication
Facebook Login
since Jul 2021
Font scripts
Font Awesome
since Apr 2019
JavaScript graphics
JavaScript libraries
Maps
Google Maps
since Apr 2019
Miscellaneous
HTTP/3
since Feb 2024
Open Graph
since Sep 2022
Programming languages
PHP
since Sep 2021
Tag managers
Google Tag Manager
since Apr 2019
Webmail
Microsoft 365
since Sep 2025
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 62% phone
- 38% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.95 / 10 · ranked #1,677,266 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 125 ms |
| CLS | 1.15 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 3.8 MB · 86 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Industry: Retail (declares
Store)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on CASABLANCA-AS Internet & Collocation Provider (77.78.119.234, IPv6)
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 14,885,765
- Verified with: Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted