Millions of Britons are gearing up for their summer getaways, yet experts are cautioning travellers against placing too much trust in a wall of glowing five-star reviews. Online reviews have emerged as one of the most influential factors when selecting hotels, resorts and holiday rentals, with countless holidaymakers depending on them to determine where to splash thousands of pounds.

However, according to review verification specialist TruthEngine, not every review paints the full picture. Daniel Mohacek, CEO of TruthEngine, advised holidaymakers to treat reviews as just one piece of evidence rather than conclusive proof that a property will live up to expectations.

He said: "Reviews have become one of the most powerful tools people use when booking holidays. A string of five-star ratings can persuade someone to spend thousands of pounds on a hotel, resort or rental they have never seen in person.

"The problem is that not every review tells the full story. Some may be exaggerated, outdated, incentivised or, in some cases, not actually genuine."

TruthEngine cautions that fake, manipulated and misleading reviews can leave holidaymakers arriving at destinations that bear little resemblance to what was advertised online. In some instances, guests find themselves confronted with shabby rooms, substandard facilities, hygiene concerns, deceptive photographs or noisy surroundings that were never flagged in the reviews. One of the most significant errors travellers commit, according to Mr Mohacek, is presuming that a near-flawless review score guarantees a property is outstanding.

He said: "Holidaymakers should not assume that a high rating automatically means a property is perfect."

TruthEngine advises reading two, three and four-star reviews first, contending that these frequently offer the most balanced and valuable insights.

He added: "Our advice is simple, to slow down before booking. Read the two, three and four-star reviews as these are the least faked, check recent feedback, compare different platforms and look at real guest photos."

He also urged travellers to watch out for recurring phrases, reviews that read more like promotional material than authentic experiences, and sudden clusters of glowing feedback appearing within a compressed timeframe.

He said: "If the same complaints keep appearing, or if the reviews all sound too polished and too similar, that should ring alarm bells."

Another frequent error is depending entirely on a single booking platform. TruthEngine advises comparing reviews across multiple sites including Google, Tripadvisor, Booking.com, Airbnb and Expedia, while also examining social media and photographs from fellow travellers.

Mr Mohacek added: "A holiday is one of the biggest purchases many families make each year. Taking 10 extra minutes to check whether reviews feel authentic could be the difference between a dream break and an expensive disappointment."

For holidaymakers seeking a rapid verification, TruthEngine suggests a straightforward 30-second review audit: examine the mid-range reviews, arrange by the most recent feedback, cross-reference multiple platforms, remain cautious of excessive references to particular staff members and take note of recurring grievances. According to Mr Mohacek, these additional checks can uncover considerably more than a five-star rating alone ever will.