What it looks like

A price of $599 with a line through it, and $199 next to it in red. A banner: “Flash sale ends in 14:59.” A pulsing note: “Only 3 left in stock. 27 people are viewing this.” A pop-up on your way out offering another 10 percent if you buy in the next five minutes.

Sometimes it is dressed up as a story. A charity drive that ends Friday. A “manufacturer clearance” of last year’s model. A “senior discount” you qualify for by answering three questions. The costume changes. The clock is always the same.

Why it works on us

Because deciding to buy a hearing device is hard, and the timer offers to make the decision for you. Someone who has spent months avoiding the subject finally sits down to research, meets a page that says the price doubles at midnight, and buys to end the discomfort rather than the hearing loss.

It works especially well on people who have already been quoted thousands by a clinic. Against that number, $199 marked down from $599 looks like the deal of the decade, even when $199 is what the product has always cost.

What the numbers actually are

• The struck-through price is usually a fiction. The Federal Trade Commission’s guides against deceptive pricing say a “former price” has to be a price the seller actually and openly charged for a reasonable period. A number invented to make the real price look small is deceptive pricing, whether or not anyone enforces it against a marketplace seller.
• The timer is a few lines of code. It counts down from whatever number the seller chose and starts over for the next visitor. Regulators have described countdown timers and false low-stock messages as dark patterns, meaning design built to manipulate rather than inform.
• The stock count is decoration. A product sold across dozens of marketplace listings under different brand names is not down to its last three units.
• The “viewing now” number is usually generated at random.

How to spot it in ten seconds

1. Reload the page. If the timer resets to the same starting number, it is fake. If it keeps counting, open the page in a private window. A real deadline does not care who is looking.
2. Check the price history. Marketplace price trackers keep charts going back months. If the “sale” price is the line the product has always sat on, the struck-through number is invented.
3. Check the archive. The Internet Archive’s Wayback Machine keeps dated snapshots of most pages. If the sale that ends tonight was also ending tonight in March, you have your answer.
4. Read the “regular” price out loud. Ask whether anyone, anywhere, ever paid it. If you cannot find that price on the seller’s own site in the archive, nobody did.
5. Leave and come back. The exit pop-up with the extra discount is the seller telling you the earlier price was not the real price either.

The pattern under the pattern

Fake urgency almost never travels alone. A page with a resetting timer usually also has a fictitious former price, a stock count, and a set of reviews that all arrived in the same week. Each one is a small lie, and each one is cheap to add. When you see one, assume the others until you have checked.

A real deadline does not care whether you reload the page.

What to do instead

• Never buy a hearing device on the same visit you first saw it. Bookmark it, sleep on it, and come back. If the sale is real, it will be there tomorrow. If it is not real, you just saved yourself the product as well as the price.
• Decide what you need before you shop. A hearing test and a budget make you immune to the clock, because the clock only works on people who have not decided yet.
• Compare against our Real Choices. Every product there shows a real price history, and none of them needs a timer to sell.
• Screenshot the page with the timer and the date visible. If you later need a refund, or want to send us a Case File, that screenshot is the exhibit.

Case Files

Products and sellers we have documented using this tactic will be linked here as Case Files are published. If you have been caught by it, send us the listing and your order details. Dated screenshots are the most useful thing you can send.

Evaluated by Scott West. Data scientist. 40 years of hearing loss. Method: How We Evaluate.