What powers castrov.cz?
Last seen Sep 2025 · 26 technologies across 17 categories
Authentication
Facebook Login
since Aug 2022
CDN
jQuery CDN
since Aug 2022
jsDelivr
since Aug 2022
CMS
Databases
MySQL
since Jul 2023
Font scripts
Font Awesome
since May 2019
Google Font API
since Jul 2023
JavaScript libraries
Slick
since Jul 2023
Miscellaneous
Open Graph
since Sep 2022
RSS
since Jul 2023
Operating systems
Debian
since Aug 2022
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since May 2019
Security
HSTS
since Sep 2022
UI frameworks
Web servers
Apache HTTP Server
since May 2019
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
WordPress themes
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.07 / 10 · ranked #1,474,827 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.9 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 3100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 9.4 MB · 91 requests
- WordPress theme: generatepress · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Častrov
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on TLAP-ZCOM (185.178.175.239)
- DNS: elsyjh.cz
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 1,294,331, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.castrov.cz | 24 |
| castrov.cz | 19 |