Analytics
Who left PostHog, and who still runs it
3,520 websites in the top 1M run PostHog, observed directly from the rendered page in the July 2026 crawl.
680
stopped running it that month
59
of those are 11–500 employees
3,993
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running PostHog
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Cloudflare 88%Google Analytics 87%Open Graph 86%core-js 78%HSTS 74%Google Tag Manager 68%Facebook Pixel 65%Priority Hints 64%jQuery 62%HTTP/3 59%
Share of a 3,000-domain sample of PostHog users that also run each.