LazySizes vs Smush

LazySizes is used by more websites in our catalog: 30,997 use LazySizes and 12,124 use Smush.

LazySizes and Smush sites have a similar median Ahrefs Domain Rating.

Between 2026-06 and 2026-07, LazySizes went from 4.0% to 3.5% of all tracked sites, while Smush went from 1.5% to 1.4%. Smush is gaining ground faster in our index.

519 websites in our catalog use both LazySizes and Smush.

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.