Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
LiteSpeed is a high-scalability web server.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
RankMath SEO is a search engine optimisation plugin for WordPress.
Typekit is an online service which offers a subscription library of fonts.
Unpkg is a content delivery network for everything on npm.
WP-Optimize is an all-in-one WordPress plugin that cleans your database, compresses your large images and caches your site.