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

GitHub Pages is a static site hosting service.

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.

Varnish is a reverse caching proxy.

Squarespace provides Software-as-a-Service (SaaS) for website building and hosting, and allows users to use pre-built website templates.

Squarespace Commerce is an ecommerce platform designed to facilitate the creation of websites and online stores, with domain registration and web hosting included.

Netlify providers hosting and server-less backend services for web applications and static websites.

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.

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