What Is Review Schema and How Does It Create Rich Snippets?
Review schema is structured data markup, using Schema.org's Review and AggregateRating types, that describes customer reviews of a business, product, or service in a format search engines can parse directly. Implemented correctly on a website, it can produce rich snippets — the star ratings and review counts that sometimes appear directly underneath an organic search result, before anyone even clicks through.
It gets confused with GBP reviews often enough that the distinction is worth stating plainly upfront: review schema affects the organic search result, the ordinary blue links. The star rating inside the local pack comes from a completely separate source — Google reviews attached to the Google Business Profile itself.
Two forms of review markup
AggregateRating on a LocalBusiness marks up the overall summary — something like "4.7 out of 5 from 320 reviews" — when a business's website already displays that summary figure somewhere on the page. The schema doesn't invent the number; it just tells Google this specific piece of visible text is a rating, so Google can consider surfacing it in the result snippet.
Individual Review markup goes a level deeper, marking up specific customer reviews rather than just the aggregate. This is what can produce rich snippet stars on individual product or service pages, where a single review's rating gets attached to that specific offering rather than to the business as a whole.
The rule that trips people up
Google enforces a strict line here: a business cannot mark up reviews it wrote about itself. The reviews being marked up have to be genuine, third-party reviews — actual customers, actually reviewing the actual business. Marking up self-authored or fabricated reviews as if they were third-party is a structured data policy violation and can trigger a manual action against the site, which is a real cost for what usually amounts to a shortcut around actually collecting reviews.
Website schema and GBP reviews are different signals
It's worth repeating because it's the single most common confusion: review schema on a website does not touch what shows up in the local pack. The stars next to a business in Maps or in the local pack section of a search result come entirely from Google reviews on the GBP — nothing a webmaster adds to the site's own HTML changes that. Review schema is a separate lever, aimed at organic search results, and both levers matter, but improving one does nothing for the other.
When review schema is worth the implementation effort
Review schema earns its keep most clearly for businesses that get meaningful traffic from organic search results beyond the local pack — not every local business does, since many rely almost entirely on Maps and local pack visibility. It's also worth the effort for businesses that legitimately display third-party reviews on their own site, pulled from Practo, JustDial, or another verified platform with permission, since that's exactly the scenario the schema is built to describe. In both cases, the payoff is a higher click-through rate from organic results, because a result showing stars next to it tends to draw the eye before a plain text snippet does.
For a business whose traffic comes almost entirely through the local pack and GBP, review schema is a lower priority than the work that actually moves prominence — review generation, response rate, citation accuracy — since none of that flows through website schema at all.
A practical example
A dental clinic in Ahmedabad displays "4.8 stars, 210 reviews" pulled from Practo on its own services page, alongside genuine excerpts from named patients. Marking that block up with AggregateRating and individual Review schema is a legitimate use of the markup, since the underlying reviews are real and third-party. The same clinic writing a glowing paragraph about itself and wrapping it in Review schema, presenting it as a customer review, would be exactly the kind of self-serving markup Google's policy prohibits.
Related terms: Structured data → · Schema.org → · LocalBusiness schema → · Review sentiment → · Review velocity → · Google reviews →
Local SEO Agency India → | Structured Data & Schema → | GBP Management Services →
Related glossary terms
A score you can argue with, not a black box
Rank OS gives every profile a 0–100 score built from five weighted dimensions — Relevance, Review Health, Freshness, Entity Authority and AIO Readiness — and the weights are tunable. Underneath it sits a ranked list of the fixes that move the number, each with the point lift it unlocks.
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