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Who left PubMatic, and who still runs it
11,714 websites in the top 1M run PubMatic, observed directly from the rendered page in the July 2026 crawl.
1,162
stopped running it that month
102
of those are 11–500 employees
3,835
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running PubMatic
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 99%Cloudflare 96%Google Publisher Tag 91%Cloudflare Bot Management 91%Google Analytics 91%Open Graph 88%Snowplow Analytics 87%reCAPTCHA 85%ID5 83%Adobe Audience Manager 77%
Share of a 3,000-domain sample of PubMatic users that also run each.