A/B Testing
Who left Google Optimize, and who still runs it
1,590 websites in the top 1M run Google Optimize, observed directly from the rendered page in the July 2026 crawl.
226
stopped running it that month
37
of those are 11–500 employees
194
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Google Optimize
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Google Analytics 94%Google Tag Manager 87%core-js 82%jQuery 78%Open Graph 78%Cloudflare 73%Facebook Pixel 65%HSTS 61%Google Font API 51%Cart Functionality 45%
Share of a 1,590-domain sample of Google Optimize users that also run each.