Market Share by Top Websites

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

2 Despite its recent growth, ConvertKit is still behind Postmark in all market share segments.

Websites Categories

1 Postmark has better usage coverage in more websites categories. Including Games, Computers Electronics & Technology, Adult, Science & Education and 17 other categories.

2 ConvertKit is leading in Food & Drink, Home & Garden and Hobbies & Leisure.


1 Postmark is leading in most countries, including United States, United Kingdom, Canada, Germany and 135 other countries.

2 ConvertKit is leading in Taiwan, Jamaica, Bahamas, Ethiopia and 9 other countries.