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How to Add Review Schema to Blogger Posts
How to Add Review Schema to Blogger Posts (Get Star Ratings in Search)
Key Takeaway: Those little yellow stars you see under some search results — right below the blue link, before anyone even clicks — come from Review schema, a small piece of code that tells Google "this page is a review, and here's the rating." If you write review-style posts (app reviews, tool comparisons, product roundups), adding this one block of code is one of the few genuinely free ways to make your listing stand out in a page full of plain text results.
If you've read our FAQ schema guide for AI Overviews or how to rank in AI Overviews on Blogger, this fills in the one schema type those posts don't cover — the one built specifically for review content, which describes a lot of what you actually publish.
What Review Schema Actually Does
Review schema (technically the Review or AggregateRating schema type) tells Google three things in a machine-readable format:
- What you're reviewing (the app, tool, or product name)
- What rating you gave it (on a scale you define, like out of 5)
- Who's giving the rating (you, or an average across multiple reviewers)
When Google trusts this data, it can show a star rating directly in the search result — before a single word of your article is read. That's real, visible differentiation on a results page that's otherwise just blue links and gray text.
Proof Block: Search Google for "review" [your niche] and screenshot which results show star ratings versus which don't. Compare the ones with stars against your own current posts. That side-by-side is the clearest way to see what you're actually missing right now.
The Exact Code to Use
Warning: Google has tightened its rules on review-style rich results significantly. As of recent guidance, self-serving reviews — where you're the only reviewer, rating your own recommendation — are treated more skeptically than aggregate ratings drawn from multiple real reviews. Don't fabricate a rating or invent multiple "reviewers" that don't exist; Google's spam systems are specifically built to catch that, and getting caught can affect your whole site's rich result eligibility, not just one post.
Here's a clean, honest version of the schema, written for a single-reviewer format (which is legitimate as long as it's accurate):
<script type="application/ld+json">
{
"@context": "https://schema.org/",
"@type": "Review",
"itemReviewed": {
"@type": "SoftwareApplication",
"name": "App or Tool Name Here"
},
"reviewRating": {
"@type": "Rating",
"ratingValue": "4",
"bestRating": "5"
},
"author": {
"@type": "Person",
"name": "Hardeep Singh"
}
}
</script>
For itemReviewed, swap "SoftwareApplication" for whatever fits — "Product" for a physical item, "Organization" for a company or platform, "Service" for something like an earning app or subscription service.
Where to Paste It in Blogger
- Open the post in Blogger's editor.
- Switch to HTML view (the
<>icon, not the compose view). - Scroll to the very bottom of the post content.
- Paste the script block there, after your last paragraph.
- Switch back to Compose view to confirm nothing visually broke — the script tag is invisible on the page itself, so you shouldn't see any changes.
Quick Win: Just like the FAQ schema approach already covered on this site, Blogger's structured data parser reads JSON-LD scripts anywhere in the page body, not just in the <head> — so pasting it at the bottom of your post content works exactly as well as pasting it up top, and it's much easier to find and edit later.
How to Confirm It's Actually Working
- Publish or update the post.
- Go to Google's Rich Results Test tool and paste in your live post URL.
- Check that it detects a Review or AggregateRating item without errors.
- Wait — even a valid schema doesn't guarantee stars appear immediately. Google decides independently whether to display the rich result, and it can take days to weeks after your first successful validation.
Warning: A green checkmark on the Rich Results Test means your code is valid, not that stars will definitely show up in search. Google reserves the right to withhold the visual rich result even from technically correct schema, especially for newer or lower-authority pages. Don't panic if stars don't appear within a few days — give it real time before assuming something's broken.
Which of Your Existing Posts Should Get This First
Quick Win: Don't try to retrofit every post you've ever published at once. Prioritize your review-format posts with the strongest existing traffic first — a post already getting decent impressions benefits far more from an added star rating than a brand-new post nobody's searching for yet. Reviews like your Gemsloot breakdown, 8x Social review, or antivirus software comparison are exactly the format this schema is built for.
FAQ
Q1. Do I need to show the rating visibly on the page too, or is the code enough?
Google's guidelines require the rating to be visible somewhere on the actual page, not just hidden in the schema code. If your review already states something like "4 out of 5 stars" in the visible text, you're covered — just make sure the number in your schema matches what a reader can actually see.
Q2. Can I use this on a listicle post that reviews multiple apps, not just one?
Yes, but it requires a separate Review block for each item reviewed within the same schema structure, which is more complex to set up correctly. For a first attempt, single-subject review posts are the easier and safer starting point.
Q3. Will this guarantee my stars show up in search results?
No. Valid schema makes you eligible for the rich result, but Google makes the final call on whether to actually display it, based on factors like page authority and overall quality signals that aren't fully public.
Q4. Is there a risk to adding this incorrectly?
Yes — inaccurate or misleading review markup, including inflated ratings or fake reviewer counts, violates Google's structured data guidelines and can result in a manual action affecting rich results sitewide, not just on the one post. Accuracy matters more than optimism here.
Pro Tip: Keep a simple spreadsheet tracking which posts you've added Review schema to and the date you did it. When you check the Rich Results Test weeks later, having that record makes it easy to see which posts actually started showing stars and which didn't, so you can spot a pattern instead of guessing.
