Google APIs are application programming interfaces developed by Google which allow communication with Google Services and their integration to other services.
CloudFlare is a global CDN and DNS provider that can speed up and protect any site online.
Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.