Analytics; Security
Who left Signifyd, and who still runs it
664 websites in the top 1M run Signifyd, observed directly from the rendered page in the July 2026 crawl.
24
stopped running it that month
5
of those are 11–500 employees
178
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Signifyd
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Cloudflare 97%core-js 93%HSTS 91%Google Analytics 89%Cart Functionality 86%Open Graph 83%Priority Hints 80%HTTP/3 78%Facebook Pixel 69%Shopify 64%
Share of a 664-domain sample of Signifyd users that also run each.