Web server extensions
Who left mod_jk, and who still runs it
332 websites in the top 1M run mod_jk, observed directly from the rendered page in the July 2026 crawl.
85
stopped running it that month
9
of those are 11–500 employees
103
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running mod_jk
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
Apache HTTP Server 100%Apache Tomcat 100%Java 100%OpenSSL 87%jQuery 76%Google Analytics 41%Bootstrap 40%Open Graph 39%jQuery UI 37%CentOS 29%
Share of a 332-domain sample of mod_jk users that also run each.