The Semantic Web
The semantic web is next-level embedded meta data for helping search engines understand CONTEXT ie implied meaning from content. These tags are known as RDF (Resource Description Framework) and RDFa (Resource Description Framework in Attributes.)
Schema - a vocabulary for structured content founded by Google, Bing, and Yahoo! -- powers search results and provides searchable direct answers. When structured optimally, these schema "cards" become part of the search engines' knowledge graphs in turn giving your website higher authority and visibility.
JSON-LD: a new standard?
JSON-LD appears to be the emerging favorite over Microdata and RDFa for structured data on websites. JSON-LD is a key technology for Web 3.0.
How to Optimize for Voice Search (so far)
- Use schema-structured data.
- Accelerate your website! Your mobile pagespeed scores matter now more than ever.
- FAQ pages (frequently asked questions) work great. Short, concise answers are optimal for answering questions and can qualify as featured voice snippets.
- Consider the coming monetization of voice search: getting qualified and optimized for voice is going to be huge. The race is on for websites to establish themselves with authority in voice search.
Asking Siri on your iphone for results from the web is voice search. Android phones and Google home devices also offer Google voice assistant. The most-used voice assistant is Amazon's Alexa on their Echo and Echo Dot. Microsoft devices use Cordana. As of 2018, one of 6 families in the U.S. have voice search devices in their homes.
Voice searches are usually "conversational" through a digital assistant versus typing in short phrases. Voice search is powered by AI (Artificial Intelligence) so it's always getting smarter. Voice searches, such as through Google Voice search, are often complex queries and shorter interactions.People usually need a quick answer to what, who, how, when, or where. Follow-up questions can be contextual, where the AI understands the context of your follow-up question.
Semantic web and structured data are pretty much the same thing now. Google accepts any of the 3: RDFa, JSON-LD, and microdata. Our research is showing that JSON-LD is emerging as the new standard for structured data.