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 1,348,640

534,273

India 400,388

197,700

United Kingdom 403,486

181,539

Germany 403,347

127,948

France 317,870

145,372

Brazil 290,538

145,709

Canada 289,821

138,940

Japan 209,336

172,940

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, Aug 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