SiteSpect vs VWO

VWO is used by more websites in our catalog: 1,081 use SiteSpect and 5,538 use VWO.

VWO sites have the higher median Ahrefs Domain Rating (SiteSpect: 43, VWO: 50).

Between 2026-06 and 2026-07, SiteSpect went from 0.06% to 0.12% of all tracked sites, while VWO went from 0.83% to 0.63%. SiteSpect is gaining ground faster in our index.

1 websites in our catalog use both SiteSpect 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.