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UptimeRobot - Free Website Uptime Monitoring
Boomi - The #1 Integration Cloud - Build Integrations anytime, anywhere with no coding required using Dell Boomi's industry leading iPaaS platform.
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.
SAP NetWeaver - SAP NetWeaver enables the composition, provisioning, and management of applications across a heterogeneous software environment
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Pimcore - Pimcore is an award-winning data management and customer experience management software.