Autoptimize vs Lozad.js

Autoptimize is used by more websites in our catalog: 10,272 use Autoptimize and 1,282 use Lozad.js.

Lozad.js sites have the higher median Ahrefs Domain Rating (Autoptimize: 27, Lozad.js: 34).

Between 2026-06 and 2026-07, Autoptimize went from 1.4% to 1.2% of all tracked sites, while Lozad.js went from 0.17% to 0.15%. Lozad.js is gaining ground faster in our index.

21 websites in our catalog use both Autoptimize 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.