Incapsula
40,801 websites

Incapsula offers both free and paid options

http://www.incapsula.com/

Incapsula is a Security CDN that makes websites safer, faster and helps increase reliability.

VS

Sucuri
42,271 websites

Sucuri costs money

https://sucuri.net

Sucuri SiteCheck website security monitor is used to monitor websites for malware, blacklist status and other security issues and Sucuri CloudProxy Firewall safeguards sites and those who visit them from attacks of all kinds.

Market Share by Top Websites

1 Sucuri is leading in The Entire Web.

2 Incapsula is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.

Websites Categories

1 Sucuri has better usage coverage in more websites categories. Including Health, Food & Drink, Business & Consumer Services, Heavy Industry & Engineering and 10 other categories.

2 Incapsula is leading in Finance, Jobs & Career, Science & Education, Computers Electronics & Technology and 6 other categories.

Geography

1 Sucuri is leading in most countries, including United States, Canada, United Kingdom, India and 111 other countries.

2 Incapsula is leading in Japan, Brazil, Israel, Spain and 35 other countries.