Holly Website Audit - Free, brandable website audit for your potential clients
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Crowdcurity - Crowdsourced web security. Connecting businesses with security testers.
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.