Google Hosted Libraries 
Google Hosted Libraries is used by 0.99% of sites
Official Website
https://developers.google.com/speed/librariesCategory
CDNGoogle Hosted Libraries is a service provided by Google that allows website developers to include popular JavaScript libraries in their web pages. Instead of hosting the JavaScript files on their own servers, developers can reference the libraries hosted by Google, reducing the need for self-hosting and improving performance and reliability.
The Google Hosted Libraries service offers a collection of commonly used JavaScript libraries, including popular frameworks, libraries, and tools. Some of the libraries available through Google Hosted Libraries include:
jQuery: A fast and feature-rich JavaScript library that simplifies HTML document traversing, event handling, animation, and AJAX interactions.
AngularJS: A powerful JavaScript framework developed by Google for building dynamic web applications. It provides a complete solution for handling data binding, dependency injection, and other common web application tasks.
React: A popular JavaScript library for building user interfaces, developed by Facebook. React simplifies the creation of interactive and reusable UI components.
Vue.js: A progressive JavaScript framework for building user interfaces. Vue.js focuses on the view layer and can be easily integrated into existing projects.
Bootstrap: A widely used CSS framework that provides pre-built components and a responsive grid system for creating modern and mobile-friendly web interfaces.
Font Awesome: A library of scalable vector icons that can be easily customized and integrated into web projects.
Google Web Fonts: A collection of freely available web fonts that can be used to enhance the typography and visual appeal of websites.
By using Google Hosted Libraries, developers can benefit from several advantages:
Performance: The libraries are served from Google's globally distributed content delivery network (CDN), which ensures fast and reliable delivery of the files to users around the world. This can help improve page load times and overall performance.
Caching and Versioning: Google Hosted Libraries automatically handles caching and versioning of the libraries. When a new version of a library is released, developers can update their references to automatically benefit from bug fixes and performance improvements.
Network Efficiency: Since many websites already use the libraries hosted by Google, users may already have them cached in their browsers. This reduces the need for additional requests and can improve the efficiency of page loading.
Reliability: Google's infrastructure ensures high availability and reliability of the hosted libraries, reducing the risk of downtime or server issues.
It's important to note that while Google Hosted Libraries provide convenience and performance benefits, it also means relying on an external service. If there are concerns about the availability or security of the hosted libraries, developers may choose to self-host the libraries or consider alternative hosting options.
The Google Hosted Libraries service offers a collection of commonly used JavaScript libraries, including popular frameworks, libraries, and tools. Some of the libraries available through Google Hosted Libraries include:
jQuery: A fast and feature-rich JavaScript library that simplifies HTML document traversing, event handling, animation, and AJAX interactions.
AngularJS: A powerful JavaScript framework developed by Google for building dynamic web applications. It provides a complete solution for handling data binding, dependency injection, and other common web application tasks.
React: A popular JavaScript library for building user interfaces, developed by Facebook. React simplifies the creation of interactive and reusable UI components.
Vue.js: A progressive JavaScript framework for building user interfaces. Vue.js focuses on the view layer and can be easily integrated into existing projects.
Bootstrap: A widely used CSS framework that provides pre-built components and a responsive grid system for creating modern and mobile-friendly web interfaces.
Font Awesome: A library of scalable vector icons that can be easily customized and integrated into web projects.
Google Web Fonts: A collection of freely available web fonts that can be used to enhance the typography and visual appeal of websites.
By using Google Hosted Libraries, developers can benefit from several advantages:
Performance: The libraries are served from Google's globally distributed content delivery network (CDN), which ensures fast and reliable delivery of the files to users around the world. This can help improve page load times and overall performance.
Caching and Versioning: Google Hosted Libraries automatically handles caching and versioning of the libraries. When a new version of a library is released, developers can update their references to automatically benefit from bug fixes and performance improvements.
Network Efficiency: Since many websites already use the libraries hosted by Google, users may already have them cached in their browsers. This reduces the need for additional requests and can improve the efficiency of page loading.
Reliability: Google's infrastructure ensures high availability and reliability of the hosted libraries, reducing the risk of downtime or server issues.
It's important to note that while Google Hosted Libraries provide convenience and performance benefits, it also means relying on an external service. If there are concerns about the availability or security of the hosted libraries, developers may choose to self-host the libraries or consider alternative hosting options.