Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
Phusion Passenger is a backend technology. Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.. Currently detected on 315 quality-eligible websites in the Glympt index.
Official website: phusionpassenger.com.
By scanning headers, HTML, JS globals, meta tags, and cookies. Detection is automated and non-intrusive.
Confidence averages 100% for Phusion Passenger. ≥70% is highly reliable.
Yes. Pro and Business plans include CSV export with full filtering.
Major sites: ~7 days. Smaller domains: ~30 days. Trigger fresh scans from the dashboard.
Phusion Passenger gained 2 domains in 30 days.
0–100 score indicating detection certainty. Multiple strong signals = high confidence.
© 2026 Glympt — Gennaro Labs
Affordable technographic data for developers, agencies and sales teams.