Web servers
Who left H2O, and who still runs it
4 websites in the top 1M run H2O, observed directly from the rendered page in the latest crawl.
Some companies running H2O
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Open Graph 100%HTTP/2 100%C 100%HSTS 75%HTTP/3 75%Priority Hints 75%Amazon Web Services 50%Matomo Analytics 50%Google Tag Manager 50%Google Analytics 50%
Share of a 4-domain sample of H2O users that also run each.