How to Spot Fake Reviews: 10 Red Flags

Sort the reviews by most recent and look at the dates. Dozens of glowing reviews within a few days, especially soon after a product appears or after a long quiet period, are a classic sign of a review campaign. Genuine reviews tend to arrive steadily, as people buy and use a product.

Many marketplaces also show when a product was first listed; Amazon, for example, includes a “Date First Available” line in the product details. A product listed a few weeks ago with thousands of glowing reviews deserves a closer look.

“Great product! Exactly as described! Highly recommend!” Real reviewers tend to mention specifics: how they used the product, what surprised them, what went wrong, how long it lasted. Fake reviews are often short, vague and enthusiastic, or long but oddly generic, praising features any product in the category would have.

Some sellers attach a new product to an older, well-reviewed listing, so the new item inherits hundreds of reviews written about something else. This is called review hijacking, and the FTC has taken action against it.

Check that reviews mention the right product, model, color, size or flavor. If many of them describe something different, the rating isn’t about what you’re buying. A typical case: a listing for a new phone case with thousands of reviews, many of which praise a case for a different phone, a charging cable or something else entirely.

A rating made of many five-star and one-star reviews, with very few in between, can mean an inflated score sitting on top of real complaints. Read the one-star reviews: if they describe the same defect, that’s probably the truth about the product. Read the three-star reviews too; they’re often the most balanced.

Complaints that show up weeks or months after purchase, such as a battery that stops holding a charge or a seam that splits, are especially telling. They describe what happens after the first impression wears off, which is exactly what early five-star reviews can’t tell you.

Phrases like “I received this product for free in exchange for my honest review,” or mentions of a card in the box offering a gift card for a five-star review, point to incentivized reviews. Under the FTC rule, businesses can’t offer incentives that are conditioned on a review being positive or negative.

Some platforms run disclosed programs that send free products to reviewers. Those reviews should be clearly labeled, and they still aren’t the same as an ordinary buyer’s experience.

Click on a few reviewers. Red flags include accounts that posted many reviews on the same day, five-star ratings for everything across unrelated products, brand-new accounts with a single review, and reviewers who mostly praise products from the same handful of unknown brands.

When several reviews share unusual phrases, the same structure or the same photos, they probably came from the same source. A reverse image search on a review photo can show whether it came from a stock photo site or from another listing.

Another quick check: copy a distinctive sentence from a review and search for it in quotes. Identical wording on other products or other websites is a giveaway.

Real customers rarely write like ad copy. Be wary of reviews that repeat the product’s full name, list features in the same order as the product description, lean on marketing phrases such as “premium quality” or “must-have,” or attack a competitor by name.

A verified-purchase label means the platform saw the reviewer buy the item there. That’s a good sign, but it can be gamed: some sellers reimburse buyers outside the platform in exchange for a purchase and a five-star review. These reviewers are often recruited in social media groups or messaging apps, and paid back once the review is posted. Treat “verified” as better than nothing, not as proof.

Testimonials on a brand’s own website are curated by definition. Be extra careful when a product has glowing reviews on its own site but little independent coverage, when reviews can’t be sorted or filtered, or when there are no negative reviews at all.

The FTC rule also bars businesses from suppressing negative reviews, for example with threats, and from presenting the reviews they display as representative when negative ones have been hidden.