Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Google Publisher Tag (GPT) is an ad tagging library for Google Ad Manager which is used to dynamically build ad requests.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Prepr is a headless CMS with data-driven capabilities.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Vercel is a cloud platform for static frontends and serverless functions.