Market Share by Top Websites

1 MailChimp is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 In terms of market share, Constant Contact is clearly lagging behind, losing to MailChimp in all segments.

Websites Categories

1 MailChimp has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Shopping and 214 other categories.

2 Constant Contact is leading in Alternative & Natural Medicine, Philanthropy, Libraries & Museums, Mental Health and 21 other categories.


1 MailChimp is leading in most countries, including United States, Great Britain, Canada, Australia and 222 other countries.

2 Constant Contact is leading in Belize, Bhutan, Liberia, Curaçao and one other country.