HubSpot - Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
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.
EngageBay - EngageBay is an affordable all-in-one marketing, sales CRM and service helpdesk software for growing companies to acquire, engage and nurture web visitors to happy customers.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Marketo - Marketo's powerful marketing automation software helps marketers master the art & science of digital marketing to engage customers and prospects.
Better Uptime - We call you when your website goes down