This Tool takes as input a list of URLs, and which outputs, for each URL, a score indicating if remote website is using Ruby on Rails
$./test_RoR.py http:// sqreen.io/ http://a_ror_website.fake/
score URL
1/5 http://sqreen.io/
5/5 http://a_ror_website.fake/
$./test_RoR.py -f examples_urls.tx -> List all score of URL in file
$./test_RoR.py --help -> Display this file
To ADD more heuristics, you just have to search the isRoR() function in testRoR class and add your code in.