Marketing automation
Who left MailChimp, and who still runs it
25,846 websites in the top 1M run MailChimp, observed directly from the rendered page in the July 2026 crawl.
3,569
stopped running it that month
772
of those are 11–500 employees
2,595
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running MailChimp
Every row in a full list carries the prospect's whole detected stack.
What else they run
Google Analytics 84%Open Graph 77%jQuery 74%core-js 73%Cloudflare 73%Google Tag Manager 66%HSTS 57%Facebook Pixel 52%Priority Hints 50%HTTP/3 49%
Share of a 3,000-domain sample of MailChimp users that also run each.