What powers 
ducr.cz?
Last seen Jan 2025 · 30 technologies across 17 categories
Advertising
Twitter Ads
since Jul 2023
Analytics
Google Analytics
since Jul 2023
CMS
Comment systems
Databases
MySQL
since Jul 2023
Font scripts
Google Font API
since Apr 2019
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Open Graph
since Jul 2023
Operating systems
Ubuntu
since Apr 2019
Programming languages
PHP
since Apr 2019
TypeScript
since Oct 2023
Rich text editors
Quill
since Oct 2023
Security
UI frameworks
Bootstrap
since Apr 2019
Web servers
WordPress plugins
RankMath SEO
since Jul 2023
SiteOrigin Page Builder
since Jul 2023
Smart Slider 3
since Jul 2023
WP Rocket
since Jul 2023
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
Open Page Rank
4.48 / 10 · ranked #404,527 of all domains
38 referring domains · OpenPageRank
Infrastructure
- Hosted on VODAFONE-CZ-AS (82.142.64.178, IPv6)
- Email: ducr.cz
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 573,232, 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.ducr.cz | 20 |
| ducr.cz | 17 |
| portal.ducr.cz | 9 |