What powers virusfree.cz?
Last seen Jun 2026 · 8 technologies across 7 categories
Analytics
Google Analytics
since Mar 2020
JavaScript graphics
particles.js
since Apr 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Programming languages
Security
reCAPTCHA
since Apr 2022
Web servers
Apache HTTP Server
since Apr 2019
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
3.25 / 10 · ranked #1,192,039 of all domains
17 referring domains · OpenPageRank
Infrastructure
- Hosted on WIA-AS (81.0.252.214, IPv6)
- DNS: websupport.cz
- Email: virusfree.cz
- Email security: SPF, no DMARC record, DNSSEC signed
- SSL: GoDaddy, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 9,905,268, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected jQuery Mar 2026
- detected particles.js Mar 2026
- dropped jQuery Feb 2026
- dropped particles.js Feb 2026