Use case
Checkout flow testing: see where shoppers stop before paying
Give simulated visitors your site and a task, such as finding a product and getting to checkout. Each one uses your live site in its own real browser, acting as a shopper, and you see how far each got, what broke, where it stopped, and why.
What you get with Mimiq
- 01
Run it by hand, or on every pull request
Paste a link and a task in the app and watch the visitors work. Or run them on every preview deploy: the GitHub Action comments on the pull request, any other CI can call the MCP endpoint, and your coding agent can run it too.
- 02
Bugs and usability problems in one report
The browser records errors and failed or slow requests on the step they happened. The visitors say where the wording or the steps confused them, and where they left.
- 03
Visitors that behave like your audience
Each visitor is a different profile with a reason to be there, matched to who the page is for, described by you, or built from your own customers.
- 04
A prompt to fix each problem
Every problem comes with a fix to paste into Cursor, Claude Code, Lovable or any coding agent, and one prompt hands over the top problems at once. Then send the same visitors through again.
- 05
Follow every visitor
See each visitor's whole path, step by step with screenshots, and what it was thinking at every step. Ask any visitor a question.
The browser records relevant JavaScript errors and failed or slow app requests encountered during the run, attached to the step where they occurred. The visitors are simulated: they find problems, they do not predict how many real people will convert.
Why checkout problems stay hidden
The team knows the delivery rules, which fields are optional, and where the discount code goes, so the path to payment feels short. A first time shopper meets a surprise cost, an account wall, or a form that will not take what they type, and leaves. Analytics can show where they left, not why.
- Simulated visitors search, pick options, add to the cart and fill in your forms in real browsers.
- Each keeps going until it reaches the payment step, leaves or gets stuck.
- See where each visitor stopped, what it did last, and why, in its own words.
- Fix it, then send the same visitors through again with the same task.
How it works
- 01
Paste the link
Start from your homepage, a product page, or the pricing page. A staging or preview store works if it has no bot protection, and with paid credits it can be protected.
- 02
Write the task
Say what they should try, such as 'Find a gift under $50 and get to checkout', or 'Find the pricing and get to checkout' for a subscription. End the task at the payment step.
- 03
Watch them shop
Pick 1 to 100 visitors matched to who buys from you. You see their screens live and every step as it happens: a click, a scroll, a form filled in.
- 04
Read where they stopped
The report shows how far each visitor got, where each one stopped, with its last step and its own words, and the problems ranked by how many visitors hit them, each with a fix to copy into a coding agent.
What checkout flow testing looks for
A checkout can lose people long before the payment form. Shoppers cannot find the product or the option they want, the cart hides the total, delivery costs appear late, an account is required before they can buy, or a form will not accept what they type.
In a run, each of those shows up where it happens: the step where a visitor stopped, what it did last, whether it did anything, and what it said about it. A button that does nothing, or a page that will not move on, stands out in the step by step view.
How it works
Each visitor acts as one of your shoppers. At every step it sees its screen and decides what to do: search, click, choose an option, fill in a form, go back, wait, or leave.
When a form asks for contact or delivery details, they use their own, which are made up, since they are simulated. A session ends when a visitor finishes the task, leaves, or gets blocked by the site, and the report counts what these visitors did.
Each journey lists every step in words, with screenshots along the way. After the run, ask any visitor a question, such as what would have helped it finish.
Where to end the task
Mimiq gives visitors no payment details, so they cannot pay, and a run covers everything before the payment itself. Write the task so it ends at the payment step, such as getting to the page where they would enter a card.
If your store can take an order without a card, such as pay on delivery or by invoice, a visitor could place one. End the task before that step, or run it on a staging store.
What happens after a card is entered, such as a declined card, a bank check, or a wallet payment, needs a test purchase in your payment provider's test mode, not a simulation.
A quick checkout checklist
Show the total, with delivery and taxes, before the last step. Say early whether an account is required, and offer a guest checkout if you can.
Keep forms short, accept the formats people type, such as spaces in phone numbers, and make errors say which field is wrong and how to fix it.
Keep the promise from the product page. If it said free delivery, the checkout should not add a fee. A mismatch between what the page promised and what the checkout asks for is a classic reason people quit.
What this does not do
It does not predict your conversion rate. Every visitor in a Mimiq report is simulated. They find what breaks and what confuses. They do not predict how many real people will convert. A run shows where shoppers like yours can get stuck and why.
Nobody pays, so end the task before payment. A CAPTCHA or bot check can stop visitors. Any visitor stopped by one is marked as blocked by the site, and if it stops every visitor, the run fails and nothing is charged. A staging or preview address without bot protection works, as long as it is public or you give access.
Keep the task to one path, such as one product to checkout. A run usually takes a few minutes, more when runs queue for capacity, and uses 5 credits a visitor.
They really use your store. On a live site they can leave abandoned carts, and test accounts if they sign up.
Questions
Can Mimiq test my checkout?
Up to the payment step. Paste your store's address with a task such as 'Find a product you like and get to checkout'. Each visitor opens your site in its own real browser and goes as far as it can. Mimiq gives them no payment details, so nobody pays.
What do the visitors type into my forms?
Their own details, which are made up, since the visitors are simulated: a name and an email address on a Mimiq domain, with a working inbox. They get no payment details.
How many visitors go through it?
A run uses 5 visitors by default, and you can pick 1 to 100. Mimiq matches them to who the site is for, or you describe them in a sentence, or build visitors from your own customers.
How long does it take?
About 5 minutes for up to 3 visitors, about 5 to 15 minutes for 5, and about 1 to 2 hours for 100. Each visitor uses its own isolated browser session. Runs may queue when capacity is busy, so completion time can vary, and you can close the tab and come back.
Will it tell me my checkout conversion rate?
No. It shows where shoppers like yours are likely to get stuck or hit something broken, and why. It does not predict how many real shoppers will buy. Use your analytics or a live experiment for rates.
What if my store uses bot protection?
It can stop them. Any visitor stopped by one is marked as blocked by the site, and if it stops every visitor, the run fails and nothing is charged. A staging or preview address without bot protection works, as long as it is public or you give access.
Can I check whether my fix worked?
Yes. Rerun the same visitors with the same task on the fixed version and read the two reports together, or ask your coding agent to compare the two versions through the MCP server.
What does it cost?
Your first test is free with a free account: sign in with Google or email and it starts right away, no card. The account includes 50 credits, enough for 10 visitors. After that a visitor uses 5 credits, and then it is a $9 Starter (120 credits that never expire) or monthly plans from $19.
Keep reading
Send visitors and see what breaks first.
Your first test is free: sign in with Google or email and it starts right away. Last checked 2026-11-01.