Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage

    Only 3.2% of websites, 502,427 in all, load an A/B testing tool on their homepage, fewer than one in thirty. Adoption peaks at 8.2% among websites ranked 1,000 to 10,000 by popularity, and falls to 4.9% among the 1,000 most visited websites.

    Share with an A/B testing tool by popularity tier
    Top 1,000
    4.9%
    Top 1,000 to 10,000
    8.2%
    Top 10,000 to 100,000
    7%
    Top 100,000 to 1M
    4.6%
    Top 1M to 10M
    3.5%
    Beyond top 10M
    2.8%

    Source: Suff Digital analysis of 15,470,478 website homepages · the public HTTP Archive crawl and Google's Chrome UX Report, September 2026

    Share with an A/B testing tool by group
    Online stores
    4.2%
    Shopify stores
    2.2%
    WordPress sites
    6.5%
    B2B sites (marketing automation)
    5.4%
    .us
    1.8%
    UK domains
    3.8%
    Canada domains
    3.5%
    Australia domains
    2%
    .de
    6.1%
    .fr
    7.4%
    .es
    11%
    EU country domains
    6%

    Source: Suff Digital analysis of 15,470,478 website homepages · the public HTTP Archive crawl and Google's Chrome UX Report, September 2026

    Source: Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage - Suff Digital