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 143 other categories.

2 Constant Contact is leading in Health, Law & Government, Real Estate, Restaurants & Delivery and 83 other categories.


1 MailChimp is leading in most countries, including United Kingdom, Canada, Australia, France and 200 other countries.

2 Constant Contact is leading in United States, Bermuda, Libya, Micronesia and 5 other countries.