With our Monitoring service, you can check the availability of static sites and other items in Cloud Storage. Users can have up to three watchers (metrics) for free. With custom notifications, you can keep track of the functionality of a static site, whose source code is hosted in Cloud Storage. To monitor the availability of a file in Cloud Storage, set your watcher type to HTTP GET or HTTP HEAD and add a link to the necessary file. More about this and configuring watchers can be found in our knowledge base.