Google Optimize vs Nelio AB Testing

Google Optimize is used by more websites in our catalog: 1,992 use Google Optimize and 399 use Nelio AB Testing.

Nelio AB Testing sites have the higher median Ahrefs Domain Rating (Google Optimize: 45, Nelio AB Testing: 48).

Between 2026-06 and 2026-07, Google Optimize went from 0.30% to 0.23% of all tracked sites, while Nelio AB Testing went from 0.06% to 0.05%. Nelio AB Testing is gaining ground faster in our index.

14 websites in our catalog use both Google Optimize and Nelio AB Testing.

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.