Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Partytown is a lazy-loaded library to help relocate resource intensive scripts into a web worker, and off of the main thread.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
RankMath SEO is a search engine optimisation plugin for WordPress.