Caching
Who left Varnish, and who still runs it
12,112 websites in the top 1M run Varnish, observed directly from the rendered page in the July 2026 crawl.
1,977
stopped running it that month
169
of those are 11–500 employees
3,244
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Varnish
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Open Graph 76%Google Analytics 75%Google Tag Manager 71%jQuery 68%Cloudflare 64%HSTS 62%core-js 58%PHP 53%Priority Hints 39%Google Font API 39%
Share of a 3,000-domain sample of Varnish users that also run each.