Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.
GitHub Pages is a static site hosting service.
Neve is a super-fast, easily customizable, multi-purpose theme that works perfectly with Gutenberg and the most popular page builders as well as WooCommerce
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Varnish is a reverse caching proxy.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.