Performance
Who left Speed Kit, and who still runs it
306 websites in the top 1M run Speed Kit, observed directly from the rendered page in the July 2026 crawl.
4
stopped running it that month
2
of those are 11–500 employees
165
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Speed Kit
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 82%core-js 82%HSTS 81%Cart Functionality 65%Google Tag Manager 60%Google Analytics 57%Microsoft Advertising 54%Cloudflare 52%Priority Hints 49%jQuery 45%
Share of a 306-domain sample of Speed Kit users that also run each.