Google: Structured Data Should Be Unique to Each Page
Google’s John Mueller says to avoid copying the same structured data onto multiple pages of a website.
If a page needs to contain structured data at all, then it should be unique to that specific page.
This advice came during a Google Webmaster Central office-hours hangout where Mueller was asked the following question:
“Can a service review only ever be used on one page or can it be shared on multiple pages relating to the same branch? I ask this as we have reviews for particular branches and these are marked up. However, we also have sub-pages that are kind of general that we mark up too.”
Given that service reviews are marked up on a page using…