cdnjs is a free distributed JS library delivery service.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps.
Google Cloud Trace is a distributed tracing system that collects latency data from applications and displays it in the Google Cloud Console.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.
Open Graph is a protocol that is used to integrate any web page into the social graph.