Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Loadable-Components is a library to solve the React code-splitting client-side and server-side.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.