D3 based reusable chart library
Donorbox is a US-based technology company. It offers an online fundraising software that allows individuals and nonprofit organisations to receive donations over the Internet.
Fathom is easy-yet-powerful website analytics that protects digital privacy.
Fly is a platform for running full stack apps and databases.
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.