LazySizes vs Lozad.js

LazySizes is used by more websites in our catalog: 30,997 use LazySizes and 1,282 use Lozad.js.

Lozad.js sites have the higher median Ahrefs Domain Rating (LazySizes: 25, Lozad.js: 34).

Between 2026-06 and 2026-07, LazySizes went from 4.0% to 3.5% of all tracked sites, while Lozad.js went from 0.17% to 0.15%. Lozad.js is gaining ground faster in our index.

86 websites in our catalog use both LazySizes and Lozad.js.

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.