SEO Basics

SEO (Search Engine Optimization)

The classic META Tags have 5 attributes: charset, content, http-equiv, name, scheme, with the name attribute the most relevant to SEO. The Name Attribute has several values: application-name, author, desription, generator, keywords, viewport.

META Tags have been expanded with RDFa to include the following items;

• about – a URI or CURIE specifying the resource the metadata is about
• rel and rev – specifying a relationship and reverse-relationship with another resource, respectively
• src, href and resource – specifying the partner resource
• property – specifying a property for the content of an element or the partner resource
• content – optional attribute that overrides the content of the element when using the property attribute
• datatype – optional attribute that specifies the datatype of text specified for use with the property attribute
• typeof

, but also how it appears to users in search results. How does a search engine know how to format and display what it finds in a short summary that someone can read?

It seems like everything for Yoast settings on a page or post is devoted to how a search engine formats and displays information to a viewer. It puts it in an application/ld+json script, which adheres to RDFa standards and tells or suggests to a search engine how to display something.