Font scripts
Who left sIFR, and who still runs it
9 websites in the top 1M run sIFR, observed directly from the rendered page in the July 2026 crawl.
3
stopped running it that month
0
of those are 11–500 employees
3
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running sIFR
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Google Analytics 67%jQuery 67%PHP 56%Apache HTTP Server 56%Cloudflare 44%reCAPTCHA 33%HTTP/3 33%RSS 33%HSTS 33%Prototype 22%
Share of a 9-domain sample of sIFR users that also run each.