How to include review rating in rich snippet?

[Cuoreimpavido]

Hi, I know that some codes that worked before are now irrelevant/not in use in Google SERP,

I get reviews on 4 major websites (including GMB) and I would love to show a consolidated star rating (for example 4.8 out of 400 reviews, if I have a total of 400 reviews in all 4 sites).

I went to Google support pages to see what would be the most up-to-date code to implement it, but I got extremely confused by the rules of Google:


Source: Review snippet | Search for Developers | Google Developers

• Make sure the reviews and ratings you mark up are readily available to users from the marked-up page. It should be immediately obvious to users that the page has review content.
• Pages using LocalBusiness or any other type of Organization structured data are ineligible for star review feature if the entity being reviewed controls the reviews about itself. For example, a review about entity A is placed on the website of entity A, either directly in their structured data or through an embedded third-party widget.

So I need to show the reviews on my page, but I can't do it with a widget because then I have control over it?

Please let me know what would be the correct way to implement it.

Thank you!

 

[Rich Owings]

If it's a local business, it probably won't be displayed in search results for your own site.