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Who left Kustomer, and who still runs it
131 websites in the top 1M run Kustomer, observed directly from the rendered page in the July 2026 crawl.
13
stopped running it that month
4
of those are 11–500 employees
49
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Kustomer
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
core-js 95%Google Analytics 94%Cloudflare 93%HSTS 92%Open Graph 87%Google Tag Manager 82%Facebook Pixel 77%Priority Hints 73%Cart Functionality 73%Cloudflare Bot Management 67%
Share of a 131-domain sample of Kustomer users that also run each.