Imperva Cloud Application Security - Deploy your applications and data where you want. When you want. Imperva keeps them secure in the cloud, on premises, and in hybrid clouds.
WebTitan - WebTitan is an advanced DNS based web content filter and web security layer that blocks malware, ransomware and phishing attempts as well as providing web content control. Cloud and gateway versions available.
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.
Incapsula - Incapsula is a Security CDN that makes any website safer, faster and more reliable. 5 minute setup will make a world of difference.
OpenDNS Umbrella - Cloud Security