Detect Ruby on Rails
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.
Detection looks at response headers, cookies, meta tags, script sources, javascript globals across 8 fingerprint rules among the site's public responses.
01
Websites using Ruby on Rails
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying Ruby on Rails. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
- Cookies
- Meta tags
- Script sources
- JavaScript globals
03
Example public indicators for Ruby on Rails
Illustrative indicators derived from public catalog metadata for Ruby on Rails. A live scan may match additional proprietary rules beyond these examples.
- server: mod_railsrack
- x-powered-by: mod_railsrack
- _session_id
- csrf-param: authenticity_token
- assets/application-/.js
- ReactOnRails
- __REACT_ON_RAILS_EVENT_HANDLERS_RAN_ONCE__
- _rails_loaded
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Ruby on Rails signature (8 rules) at the time of the scan.
- Does not establish
- A sitewide install of Ruby on Rails, an active vendor contract, exclusive use, or that Ruby on Rails is still in place today.
05
How to check a site for Ruby on Rails
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Ruby on Rails signals.
- 2. PluginView reads only public responses (response headers, cookies, meta tags) and scores them against the Ruby on Rails signature set (8 rules).
- 3. Review the confidence score and text explanation for Ruby on Rails on the results page.
06
Commonly implies
A confirmed Ruby on Rails match also implies these technologies are present.
07
FAQ: detecting Ruby on Rails
- Can PluginView detect Ruby on Rails without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Ruby on Rails — typically response headers, cookies, meta tags, script sources. It does not bypass authentication or paywalls.
- What category is Ruby on Rails?
- Ruby on Rails is classified under Web frameworks in the PluginView directory.
- How many fingerprint rules cover Ruby on Rails?
- This reference currently tracks 8 fingerprint rules across response headers, cookies, meta tags, script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Ruby on Rails?
- Illustrative public indicators for Ruby on Rails include server: mod_railsrack; x-powered-by: mod_railsrack; _session_id. A live scan may match additional proprietary rules beyond these examples.
