Apache is a free and open-source cross-platform web server software.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Imperva is a cyber security software and services company for networking, data, and application security.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Typeform is a Spanish online software as a service (SaaS) company that specialises in online form building and online surveys.