WordPress themes
Who left Twenty Fifteen, and who still runs it
99 websites in the top 1M run Twenty Fifteen, observed directly from the rendered page in the July 2026 crawl.
39
stopped running it that month
6
of those are 11–500 employees
37
adopted it in the last year
Confirmed across two consecutive crawls, not a single month. Build the list →
Some companies running Twenty Fifteen
Every row in a full list carries the prospect's whole detected stack.
Not currently available as a list.
What else they run
MySQL 100%WordPress 100%PHP 100%jQuery 100%jQuery Migrate 87%RSS 83%Google Analytics 74%Google Font API 66%Open Graph 65%Twitter Emoji (Twemoji) 53%
Share of a 99-domain sample of Twenty Fifteen users that also run each.