Market Share by Top Websites

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

2 In terms of market share, Rackspace MailGun is clearly lagging behind, losing to Responder in all segments.

Websites Categories

1 Responder has better usage coverage in more websites categories. Including Business & Industry, People & Society, Health, Shopping and 93 other categories.

2 Rackspace MailGun is leading in Software, Credit, Loans & Mortgages, Accounting and Mobile Developers.

Geography

1 Responder is leading in most countries, including Israel, South Africa, Germany, Canada and 16 other countries.

2 Rackspace MailGun is leading in United States, Brazil, United Kingdom, India and 6 other countries.