Search engines
Who left Constructor.io, and who still runs it
401 websites in the top 1M run Constructor.io, observed directly from the rendered page in the July 2026 crawl.
10
stopped running it that month
2
of those are 11–500 employees
257
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Constructor.io
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
HSTS 90%Google Analytics 89%core-js 78%Cart Functionality 77%Cloudflare 75%Google Tag Manager 75%Priority Hints 67%Facebook Pixel 65%Open Graph 65%Microsoft Advertising 60%
Share of a 401-domain sample of Constructor.io users that also run each.