Indusface AppTrana - AppTrana offers continuous website security with web application scanning, web application firewall, CDN and DDoS protection.
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
XSignal.io - Online Vulnerability Scanner and Marketplace for Penetration Testing Services
SSL Alerts - Free service to send SSL certificate expiration alerts
WebARX - Website Protection, Managed Website Security & Website Monitoring
CueObserve - Open-source Anomaly detection on SQL data