Google APIs are application programming interfaces developed by Google which allow communication with Google Services and their integration to other services.
PayPal is a American international e-commerce service that enables companies and individuals to send money and to accept payments without revealing any financial details.
LiteSpeed web server is a light-weight server which conserves resources without sacrificing performance, security, compatibility, or convenience. It is capable of handling multiple concurrent clients with minimal memory consumption and CPU usage.
By adding rel="home" to a hyperlink, a page indicates that the destination of that hyperlink is the homepage of the site in which the current page appears.