Cowboy vs Phusion Passenger

Phusion Passenger is used by more websites in our catalog: 217 use Cowboy and 943 use Phusion Passenger.

Phusion Passenger sites have the higher median Ahrefs Domain Rating (Cowboy: 2, Phusion Passenger: 32).

Between 2026-06 and 2026-07, Cowboy went from 0.03% to 0.02% of all tracked sites, while Phusion Passenger went from 0.12% to 0.11%. Cowboy is gaining ground faster in our index.

0 websites in our catalog use both Cowboy and Phusion Passenger.

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.