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Who left AppNexus, and who still runs it
14,007 websites in the top 1M run AppNexus, observed directly from the rendered page in the July 2026 crawl.
2,439
stopped running it that month
224
of those are 11–500 employees
3,778
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running AppNexus
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Google Tag Manager 97%Google Analytics 93%Cloudflare 89%Open Graph 82%Cloudflare Bot Management 81%core-js 77%jQuery 64%Google Publisher Tag 60%reCAPTCHA 60%Snowplow Analytics 59%
Share of a 3,000-domain sample of AppNexus users that also run each.