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.
Persado - Persado is a SaaS-based marketing automation platform prowered by NLP.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
SocialProve - SocialProve shows small notifications boosting your website conversion +15% with real-time social...
Better Uptime - We call you when your website goes down
Picreel - Recover abandoning visitors and turn them into customers