Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Instana is a Kubernetes-native APM tool which is built for new-stack including Microservices and lately Serverless but also supports the existing VM based stacks including several supported technologies.