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

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

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

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.

AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.

MySQL is an open-source relational database management system.

WP Engine is a website hosting provider.

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.

cdnjs is a free distributed JS library delivery service.

Mailchimp is a marketing automation platform and email marketing service.

Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.

Yoast SEO is a search engine optimisation plugin for WordPress and other platforms.

Intersection Observer is a browser API that provides a way to observe the visibility and position of a DOM element relative to the containing root element or viewport.

JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.

Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.

The Hotels Network provides a SaaS software that enhances hotelier websites with predictive marketing personalisation and user behavior analytics.

Google Cloud Storage allows world-wide storage and retrieval of any amount of data at any time.

Google Cloud is a suite of cloud computing services.

Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps.

Apache is a free and open-source cross-platform web server software.

Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

Google Cloud Trace is a distributed tracing system that collects latency data from applications and displays it in the Google Cloud Console.

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