BootstrapCDN vs Skypack

BootstrapCDN is used by more websites in our catalog: 39,625 use BootstrapCDN and 128 use Skypack.

BootstrapCDN sites have the higher median Ahrefs Domain Rating (BootstrapCDN: 29, Skypack: 11).

Between 2026-06 and 2026-07, BootstrapCDN went from 4.9% to 4.5% of all tracked sites, while Skypack went from 0.02% to 0.01%. Skypack is gaining ground faster in our index.

10 websites in our catalog use both BootstrapCDN and Skypack.

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.