LazySizes vs Perfmatters

LazySizes is used by more websites in our catalog: 30,997 use LazySizes and 7,535 use Perfmatters.

Perfmatters sites have the higher median Ahrefs Domain Rating (LazySizes: 25, Perfmatters: 31).

Between 2026-06 and 2026-07, LazySizes went from 4.0% to 3.5% of all tracked sites, while Perfmatters went from 1.1% to 0.86%. Perfmatters is gaining ground faster in our index.

284 websites in our catalog use both LazySizes and Perfmatters.

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.