What powers 
pefc.cz?
Last seen May 2026 · 22 technologies across 13 categories
CMS
Databases
MySQL
since Jan 2023
Font scripts
JavaScript libraries
Isotope
since Jan 2023
SoundManager
since Jan 2023
Miscellaneous
RSS
since Jan 2023
Payment processors
PayPal
since Jan 2023
Photo galleries
Programming languages
PHP
since Jan 2023
Security
reCAPTCHA
since Jan 2023
Video players
YouTube
since Jan 2023
Web servers
Webmail
Google Workspace
since Jan 2023
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
Open Page Rank
4.69 / 10 · ranked #359,982 of all domains
93 referring domains · OpenPageRank
Infrastructure
- Hosted on WEB4CE webhosting (93.190.48.15)
- DNS: web4ce.cz
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 13,925,451, 6 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Ubuntu Mar 2026
- dropped Cart Functionality Feb 2026