Google Analytics is a free web analytics service that tracks and reports website traffic.
LottieFiles is an open-source animation file format that's tiny, high quality, interactive, and can be manipulated at runtime.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Unpkg is a content delivery network for everything on npm.