What powers troxfilter.cz?
Last seen Aug 2026 · 18 technologies across 9 categories
Analytics
CDN
Amazon S3
since Nov 2024
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Popper
since May 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Ruby
since Nov 2021
Security
Web frameworks
Ruby on Rails
since Nov 2021
Web servers
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.65 / 10 · ranked #5,326,927 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 3.8 MB · 79 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (34.253.37.241)
- DNS: Amazon Route 53
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 42,235,044
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Etracker Jul 2026