Visual Website Optimizer is an Easy to use A/B testing tool that allows marketing professionals to create different versions of their websites and landing pages using a point-and-click editor and then see which version produces maximum conversion rate or sales.
Open graph description entity tag
A WebSite is a set of related web pages and other items typically served from a single web domain and accessible via URLs.
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.