Really Simple SSL & Security vs ThreatMetrix

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

Top sites by authority

Really Simple SSL & Security · ThreatMetrix · 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

Really Simple SSL & Security · ThreatMetrix · share of sites in each country using one or the other

United States 76,913

329

Spain 40,791

104

Brazil 39,350

187

Japan 34,787

73

France 30,313

112

Italy 30,232

104

United Kingdom 27,598

145

Germany 26,604

119

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, Oct 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 Really Simple SSL & Security sites · All ThreatMetrix sites