Security

Who left HSTS, and who still runs it

296,724 websites in the top 1M run HSTS, observed directly from the rendered page in the July 2026 crawl.

23,133
stopped running it that month
1,142
of those are 11–500 employees
83,874
adopted it in the last year

Confirmed across two consecutive crawls, not a single month. Build the list →

Some companies running HSTS

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

letterboxd letterboxd.com11-50 · entertainment · 32 technologies
dolphian dafont.com11-50 · computer software · 10 technologies
fetlife fetlife.com11-50 · internet · 13 technologies
tgju شبکه اطلاع رسانی طلا و ارز tgju.org11-50 · financial services · 16 technologies
3bmeteo (meteosolutions srl) 3bmeteo.com11-50 · internet · 20 technologies
da wedding whisper mydramalist.com11-50 · internet · 31 technologies
ex oblivione liquipedia.net11-50 · entertainment · 24 technologies
craigslist craigslist.org11-50 · internet · 8 technologies

Not currently available as a list.

What else they run

Open Graph 75%Google Analytics 73%Cloudflare 69%jQuery 63%core-js 62%Google Tag Manager 52%Priority Hints 48%HTTP/3 47%Facebook Pixel 43%Google Font API 38%

Share of a 3,000-domain sample of HSTS users that also run each.

Company size

1-1043,936
11-5026,025
51-20021,923
201-50012,794
1001-500012,001
501-10008,602

Others in Security

Cloudflare Bot Management 157,246reCAPTCHA 109,505Cloudflare Turnstile 25,583Really Simple SSL & Security 9,309hCaptcha 3,320Akamai Bot Manager 2,307DDoS-Guard 1,994Confiant 1,749