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.
Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Datadog is a SaaS-based monitoring and analytics platform for large-scale applications and infrastructure.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
The Open edX platform is a free and open source course management system.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.