Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
DIGIPASS - DIGIPASS offers two-factor authentication solutions for mobile applications.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Myki Authenticator - Login to any account on any device with your fingerprint
Better Uptime - We call you when your website goes down
Rublon - Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.