Varnish is a reverse caching proxy.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Performance plugin from the WordPress Performance Team, which determines and stores the dominant color for newly uploaded images in the media library, then uses that as a placeholder background during front end image loads.

Sites using the WordPress Block Editor, also known as Gutenberg.

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

Kadence WP Kadence is a multipurpose WordPress theme that is available for free download and also offers a pro version.

Performance plugin from the WordPress Performance Team, which makes internationalization/localization in WordPress faster than ever before.

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.

Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.

Kadence Blocks is a plugin for WordPress that provides a collection of custom blocks for the WordPress Block Editor, allowing users to create custom layouts and designs for their website without needing to know how to code.

Performance plugin from the WordPress Performance Team, which optimizes the loading of images which are the LCP (Largest Contentful Paint) element, including both img elements and elements with CSS background images.

PHP is a general-purpose scripting language used for web development.

Performance plugin from the WordPress Performance Team, which optimizes embeds by lazy loading them only as they come into view.

MySQL is an open-source relational database management system.

Performance plugin from the WordPress Performance Team, which adds support for outputting images in WebP or AVIF format and supports the `picture` element to enable format fallbacks.

Performance plugin from the WordPress Performance Team, which is a collection of standalone performance modules.

Header Footer Code Manager by Draftpress is a easy interface to add snippets to the header or footer or above or below the content of your page.

Performance plugin from the WordPress Performance Team, which captures real user metrics about what elements are displayed on the page across a variety of device form factors (e.g. desktop, tablet, and phone) in order to apply loading optimizations.

Performance plugin from the WordPress Performance Team, which adds support for the Speculation Rules API, by which certain URLs are dynamically prefetched or prerendered based on user interaction.

Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.

Performance plugin from the WordPress Performance Team, which improves image sizes attribute accuracy and implements the HTML spec for adding sizes='auto' to lazy loaded images.

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.

Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.