Google Optimize vs VWO

VWO is used by more websites in our catalog: 1,992 use Google Optimize and 5,538 use VWO.

VWO sites have the higher median Ahrefs Domain Rating (Google Optimize: 45, VWO: 50).

Between 2026-06 and 2026-07, Google Optimize went from 0.30% to 0.23% of all tracked sites, while VWO went from 0.83% to 0.63%. Google Optimize is gaining ground faster in our index.

158 websites in our catalog use both Google Optimize and VWO.

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.