Caching
Who left RackCache, and who still runs it
454 websites in the top 1M run RackCache, observed directly from the rendered page in the July 2026 crawl.
39
stopped running it that month
2
of those are 11–500 employees
69
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running RackCache
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Ruby 100%jQuery 92%Ruby on Rails 83%Google Analytics 83%Open Graph 79%Google Tag Manager 73%jQuery UI 57%core-js 57%Lodash 55%Amazon Web Services 52%
Share of a 454-domain sample of RackCache users that also run each.