MailChimp vs Omnisend

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

Top sites by authority

MailChimp · Omnisend · 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

MailChimp · Omnisend · share of sites in each country using one or the other

United States 161,030

16,746

United Kingdom 74,844

6,348

Canada 48,970

4,532

India 47,917

3,833

France 37,876

3,287

Australia 37,236

3,649

Germany 36,354

3,419

Italy 37,051

2,465

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, Jun 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 MailChimp sites · All Omnisend sites