AWS ELB is a network load balancer service provided by Amazon Web Services for distributing traffic across multiple targets, such as Amazon EC2 instances, containers, IP addresses, and Lambda functions.
AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Apache is a free and open-source cross-platform web server software.
Google Sign-In is a secure authentication system that reduces the burden of login for users, by enabling them to sign in with their Google account.