Otter Blocks vs RankMath SEO

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

Top sites by authority

Otter Blocks · RankMath 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

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

United States 1,411

112,652

India 496

69,474

Germany 749

49,126

United Kingdom 541

38,904

Spain 481

36,292

France 617

34,405

Brazil 321

33,148

Italy 635

31,059

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 Otter Blocks sites · All RankMath SEO sites