ConvertKit vs Klaviyo

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

Top sites by authority

ConvertKit · Klaviyo · 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

ConvertKit · Klaviyo · share of sites in each country using one or the other

United States 7,034

94,562

United Kingdom 2,496

37,244

Canada 2,570

29,978

Australia 1,754

27,541

Germany 1,077

24,145

India 2,075

20,024

France 801

21,230

Spain 637

16,028

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 ConvertKit sites · All Klaviyo sites