Google updated the structured data documentation for the Structured Data Carousels (beta) that show rich results for qualifying topics. The new documentation clarifies specific requirements and makes it more explicit that the rich results features are limited to a single geographic area.
Structured Data Carousels (beta)
Carousels Structured Data (beta) enables web publishers that aggregate information related to travel, local, and shopping to add structured data to their pages that makes them eligible for a new carousel rich result that prominently displays their content in the search results in a horizontally scrollable list (the carousel).
This beta rich result feature uses the ItemList structured data and is available for webpages that display content related to LocalBusiness, Product, and Event Schema.org structured data properties. Each tile in the carousel displays relevant information such as price, rating, dates and images in a rich and interactive format.
Stronger Emphasis On Summary Page
The updated documentation makes it clearer that the beta carousel structured data is meant to be implemented on a summary page that links out to pages with more detailed information and that the linked pages that contain the details do not need to have this specific structured data on them.
The old documentation contained the following instructions:
“Add markup to a single page (also known as a single, all-in-one-page list) that contains all list information, including full text of each item. For example, a list of the top hotels in a location, all contained on one page.”
The new documentation now explains it like this:
“Pick a single summary page that contains some information about every entity in the list. For example, a category page that lists the “Top hotels in Paris”, with links out to specific detail pages on your site for more information about each hotel.”
There is also an addition of an example for clarification:
