RankMath SEO vs WebFactory Under Construction

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

Top sites by authority

RankMath SEO · WebFactory Under Construction · 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 · WebFactory Under Construction · share of sites in each country using one or the other

United States 108,113

211

India 66,500

205

Germany 48,022

193

Spain 38,227

226

United Kingdom 37,716

114

France 32,719

125

Brazil 32,095

103

Italy 31,428

224

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 RankMath SEO sites · All WebFactory Under Construction sites