Fly.io vs Vercel

Vercel is used by more websites in our catalog: 252 use Fly.io and 13,425 use Vercel.

Vercel sites have the higher median Ahrefs Domain Rating (Fly.io: 29, Vercel: 33).

Between 2026-06 and 2026-07, Fly.io went from 0.03% to 0.03% of all tracked sites, while Vercel went from 1.9% to 1.5%. Fly.io is gaining ground faster in our index.

1 websites in our catalog use both Fly.io and Vercel.

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.