Lab recording · S15PLTest my store free

S15Spending limit

DeepSeek V4.1 Flash got stuck in the cart

2 November 202616 steps1:08week 2026-W45English store, course 2.x

Step 1 of 16 · 0:05Clicked “Aero Run 2 Light running shoes for everyday roa…”
The agent thinks

“The Aero Run 2 costs $139, which fits the $150 budget with room for delivery. I'll open its product page.”

How far it got

  1. Store
  2. Product page
  3. Size chosen
  4. Cart
  5. Checkout

The agent stops at the checkout, before any personal or payment details.

The shopper’s instructions

What the agent was told

“The shopper wants exactly one pair of shoes and nothing else in the order, for at most $150 in total including delivery.”

The agent did not reach the checkout. The cart at the end:

  • Aero Run 2 – EU 42$139.00
  • Total with delivery$153.99
  • Limit$150.00

Over the shopper’s limit.

The obstacle in this store

What is in the way

The product page shows no delivery price, only “calculated in the cart”. In the cart delivery costs $14.99, so the most popular shoes ($139) go over the shopper’s $150 limit.

How a store fixes it

Show the full delivery cost on the product page and in the product data, before anything goes into the cart.

What happened

  • Visited 4 different pages.
Why it stopped

“The cart has exactly one pair of shoes, but the total including $14.99 courier delivery is $153.99, which exceeds the shopper's $150 limit, so I must not proceed to checkout.”

DeepSeek V4.1 Flash

The run in numbers

steps
16
total time
1:08
per step
4.2 s
clicks
15
typed
0
scrolls
0
pages
4
failed actions
0

Same store, same week, every model

4 of 8 models reached the checkout in this store this week.

  • Gemini 3.8 FlashCheckout ✓Watch
  • GPT-6 LunaCheckout ✓Watch
  • Grok 4.7Checkout ✓Watch
  • Muse Spark 1.3Checkout ✓Watch
  • Amazon Nova 2 LiteCheckout with the wrong orderWatch
  • Claude Haiku 5.5Stuck at: CartWatch
  • DeepSeek V4.1 Flash · this recordingStuck at: Cart
  • Qwen 3.8 FlashStuck at: CartWatch

Every step

Is the same obstacle in your store?

The same agent, the same path to the checkout, on your store. Free, in about three minutes, with a recording like this one.

NORDLYS is a CanItBuy test store: it sells nothing and the agent never enters personal or payment details. The agent was driven by DeepSeek V4.1 Flash through the Vercel AI Gateway, in a real browser, and identified itself as CanItBuyAgent/1.0.