Detect Phusion Passenger
Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
01
Websites using Phusion Passenger
34 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| irishcentral.com | 8/3/2026 |
| uni-hamburg.de | 8/3/2026 |
| imgbox.com | 8/6/2026 |
| zurb.com | 8/3/2026 |
| law360.com | 8/3/2026 |
02
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Phusion Passenger signature at the time of the scan.
- Does not establish
- A sitewide install of Phusion Passenger, an active vendor contract, exclusive use, or that Phusion Passenger is still in place today.
03
How to check a site for Phusion Passenger
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Phusion Passenger signals.
- 2. PluginView reads only public responses and scores them against proprietary Phusion Passenger fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for Phusion Passenger on the results page.
04
FAQ: detecting Phusion Passenger
- Can PluginView detect Phusion Passenger without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Phusion Passenger. It does not bypass authentication or paywalls.
- What category is Phusion Passenger?
- Phusion Passenger is classified under Web servers in the PluginView directory.
- Does PluginView publish Phusion Passenger fingerprint rules?
- No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.
