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.
Open Journal Systems (OJS) is an open-source software application for managing and publishing scholarly journals.
Unpkg is a content delivery network for everything on npm.