Metric.live - Real-time and advanced periodic alerts for Google Analytics.
CDNPerf - CDN performance and uptime statistics
Quill Engage - Quill Engage takes the confusion out of Google Analytics reporting. Sign up for free and start getting website reports delivered to your inbox.
SiteOptimus - Site Optimus automatically analyzes your Google Analytics data and provides insights and recommendations to optimize website engagement and conversion
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Datadeck - Spreadsheets visualized In two clicks