HSTS vs reCAPTCHA

Head-to-head usage across the sites we track.

Top sites by authority

HSTS · reCAPTCHA · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

HSTS · reCAPTCHA · share of sites in each country using one or the other

United States 1,338,613

521,768

India 404,554

193,784

United Kingdom 411,483

180,414

Germany 400,616

124,120

France 326,363

146,342

Brazil 292,843

142,702

Canada 290,713

138,004

Japan 215,912

171,305

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.

Sites that switched

Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.

All HSTS sites · All reCAPTCHA sites