JavaScript frameworks
Who left Socket.io, and who still runs it
4,514 websites in the top 1M run Socket.io, observed directly from the rendered page in the July 2026 crawl.
571
stopped running it that month
48
of those are 11–500 employees
3,328
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Socket.io
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Node.js 100%jQuery 87%Cloudflare 78%Open Graph 56%Bootstrap 56%Google Analytics 53%Font Awesome 49%HTTP/3 49%Cloudflare Browser Insights 49%core-js 40%
Share of a 3,000-domain sample of Socket.io users that also run each.