Apache is a free and open-source cross-platform web server software.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Next.js is a React framework for developing single page Javascript applications.
Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.