This site uses the viewport meta tag which means the content may be optimized for mobile content.
Heroku provides you with all the tools you need to iterate quickly, and adopt the right technologies for your project.
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.
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook