Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
WebGazer - Monitor your website's availability with WebGazer, review its performance and get instant notifications when your website goes down. No installation required and free plan available.
DeskAlerts - Send alerts to any corporate device: PCs, phones, tablets, etc.
Troops Slack Sales Gong - The most customizable Salesforce Gong in Slack
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.