Bootstrap vs Foundation

Bootstrap is used by more websites in our catalog: 126,851 use Bootstrap and 8,731 use Foundation.

Foundation sites have the higher median Ahrefs Domain Rating (Bootstrap: 29, Foundation: 32).

Between 2026-06 and 2026-07, Bootstrap went from 16% to 14% of all tracked sites, while Foundation went from 1.1% to 0.99%. Foundation is gaining ground faster in our index.

1,466 websites in our catalog use both Bootstrap and Foundation.

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.