Deceptive Patterns
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How ‘dark patterns’ influence travel bookings

Author
Chris Baraniuk
Date
11 Dec 2019
Publisher
BBC
Category
Journalist or Media

“If you’ve wondered whether there were actually 30 people trying to book the same flight as you, you’re not alone. As Chris Baraniuk finds, the numbers may not be all they seem.”

If you’ve wondered whether there were actually 30 people trying to book the same flight as you, you’re not alone. As Chris Baraniuk finds, the numbers may not be all they seem.

Ophir Harpaz just wanted to get a good deal on a flight to London. She was on travel website OneTravel, scouring various options for her trip. As she browsed, she noticed a seemingly helpful prompt: “38 people are looking at this flight”. A nudge that implied the flight might soon get booked up, or perhaps that the price of a seat would rise as they became scarcer.

Except it wasn’t a true statement. As Harpaz looked at that number, “38 people”, she began to feel sceptical. Were 38 people really looking at that budget flight to London at the same exact moment?

Being a cyber-security researcher, she was familiar with web code so she decided to examine how OneTravel displayed its web pages. (Anyone can do this by using the “inspect” function on web browsers like Firefox and Chrome.) After a little bit of digging she made a startling discovery – the number wasn’t genuine. The OneTravel web page she was browsing was simply designed to claim that between 28 and 45 people were viewing a flight at any given moment. The exact figure was chosen at random.

Not only that, the website’s innards were surprisingly blatant about what was going on. The bit of code that defined the number shown to users was even labelled “view_notification_random”.

“There is not a piece of truth in this artefact – unless 38 people were actually looking at the site,” says Harpaz, whose Twitter thread about the discovery went viral.