RankMath SEO vs Slim SEO

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

Top sites by authority

RankMath SEO · Slim SEO · 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

RankMath SEO · Slim SEO · share of sites in each country using one or the other

United States 112,652

1,971

India 69,474

621

Germany 49,126

884

United Kingdom 38,904

823

Spain 36,292

449

France 34,405

611

Brazil 33,148

372

Italy 31,059

585

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 RankMath SEO sites · All Slim SEO sites