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.
AfterShip - AfterShip is the shipment tracking API for ecommerce businesses and marketplaces.
UptimeRobot - Free Website Uptime Monitoring
OnTime 360 - Cloud-based courier software with online order entry, route optimization, and dynamic tracking. The complete delivery software solution.
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.
couriermanager - Try couriermanager! A software solution designed especially for courier companies management. Organization, efficiency and productivity!