Performance; WordPress plugins

Who left Perfmatters, and who still runs it

1,923 websites in the top 1M run Perfmatters, observed directly from the rendered page in the July 2026 crawl.

Some companies running Perfmatters

Every row in a full list carries the prospect's whole detected stack.

insanely good recipes insanelygoodrecipes.com11-50 · internet · 49 technologies

la silla vacía lasillavacia.com11-50 · online media · 36 technologies

btc-echo btc-echo.de11-50 · financial services · 35 technologies

concursos no brasil concursosnobrasil.com11-50 · internet · 14 technologies

diário do rio de janeiro diariodorio.com11-50 · newspapers · 31 technologies

diario el sol mendoza elsol.com.ar11-50 · newspapers · 37 technologies

adrenaline adrenaline.com.br11-50 · online media · 42 technologies

tecnoblog tecnoblog.net11-50 · online media · 35 technologies

Not currently available as a list.

WordPress 100%MySQL 100%PHP 100%Open Graph 97%Priority Hints 91%Cloudflare 85%jQuery 84%Google Analytics 81%HTTP/3 73%Google Tag Manager 71%

Share of a 1,923-domain sample of Perfmatters users that also run each.

1-10496

11-50222

51-20098

201-50039

501-100017

1001-500016