Madrid · Spain
Hostelfly
Suspicious-review evidence
≈340 possibly bought · 5007 top-rated reviews scanned
Explain how it works
We compare every 5★ review's word count against the global distribution. Hostels where unusually many top-rated reviews are suspiciously short — way under the typical length — start to look like the staff (or a boost-my-listing service) is padding the score with throwaway praise.
The detector flags reviews that are both top-rated and below a length threshold, then estimates how many of them statistically shouldn't exist. For this hostel we scanned 5007 top-rated reviews and 0% were suspiciously short.
Length z-score: 9.85. A z-score measures how far this hostel's distribution of 5★ review lengths sits from the global average, in standard deviations. 0 = perfectly typical. 1–2 = slightly unusual but within normal noise. 3–5 = strongly anomalous. Anything 10+ means the pattern is so far from the global norm that it's effectively impossible to get there organically.
This is a heuristic, not a verdict — it surfaces hostels worth a second look, not proof of fraud. Read the actual reviews below and judge for yourself.
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Confirmed paidSignal trace
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Reward tied to a review
pay for a hotel room or at least take the review
The location is the only good thing. I had read the reviews about how noisy it was but thought because I stayed on 24th December there would be no one there. I was totally wrong it was busy. Every thing in my room was metal the lockers are under the bunk beds. The beds are connected so its not just the person above or below it's the next set of bunk bed connected to yours behind or in front of you banging and vibrating. Also hardly any space so the people across from you are really close. But then everyone is waking up for flights at different times and arriving at different times coming from late night flights ect. Just opening the locker causes banging. Next time I will pay for a hotel room or at least take the reviews seriously.
Spain -
Reward tied to a review
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Suspiciously short
Comodo
Colombia -
Suspiciously short
Encantadoras
Spain -
Suspiciously short
Top!!!
Belgium -
Suspiciously short
Todo
Spain -
Suspiciously short
很好，离机场很近，走过去10几分钟
China -
Suspiciously short
Top!
Belgium -
Suspiciously short
Instalações
Brazil -
Suspiciously short
Todo
Colombia -
Suspiciously short
Todo
Colombia -
Suspiciously short
Todo
Austria -
Suspiciously short
Clean
United States -
Suspiciously short
Todo
Spain -
Suspiciously short
Instalacion
Spain -
Suspiciously short
Lokalizacja
Poland -
Suspiciously short
Todo
Spain -
Suspiciously short
Limpieza
Spain -
Suspiciously short
👍👍
Morocco -
Suspiciously short
Todo.
Spain -
Suspiciously short
Acogedor
Colombia -
Suspiciously short
Todo
Switzerland -
Suspiciously short
Excelente
United States -
Suspiciously short
Excelente
Portugal -
Suspiciously short
Ubicacion
Argentina -
Suspiciously short
Magnifique
Spain
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