Docker Hub - Docker Hub is a cloud-based registry service
Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
Red Hat Quay - A container image registry that provides storage and enables you to build, distribute, and deploy containers.
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
Azure Container Registry - Store images for all types of container deployments and OCI artifacts, using Azure Container Registry.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.