See where users struggle before they do. UxerProof runs a Circuit — a complete journey performed by realistic AI Users — then returns findings, evidence and a transparent Proof Score.
A recorded, fictional Circuit. Not a live test of any real website.
run_4821 · Guest checkout — single item
Product and price were visible without scrolling.
Maya · 2.4s
Sold-out sizes look identical to available ones until tapped. Maya tried two unavailable options first.
Maya · 18.6s
Bag count updated and a toast confirmed the addition.
Maya · 1.9s
Guest checkout is a text link below a full-width 'Create account' button. Maya hesitated before finding it.
Maya · 22.4s
Postcode validation failed twice with the message 'Invalid input' and no indication of expected format.
Maya · 46.2s
A delivery surcharge appeared for the first time on this step.
Maya · 12.8s
Order reference displayed and copied successfully.
Maya · 5.1s
Findings name the step, the behaviour and the fix. The Proof Score decomposes into five measured dimensions, so nobody has to trust a number they cannot inspect.
at step · Choose size
Unavailable variants use the same border, colour and hit area as available ones. The AI User selected two unavailable sizes before succeeding.
Recommendation
Mark unavailable variants with a non-colour indicator, disable the control and expose the state to assistive technology.
at step · Guest or account
The guest path is a small text link under a full-width primary button, adding 22 seconds of hesitation at the highest-intent step.
Recommendation
Give both paths equal visual weight, or lead with guest checkout and offer an account after purchase.
Composed of five measured dimensions. Every point is traceable to evidence in the Run — there is no hidden weighting.
The Evidence Timeline records each action, response, screenshot, observation and issue in order. Raw artefacts are encrypted and deleted within 24 hours of report generation — or immediately, in Ephemeral Mode.
Ordered by capture time. Raw artefacts are encrypted and auto-deleted within 24 hours of report generation.
Viewport 390×844. Product title, price and primary action captured.
step 01 · raw artefact expires in 24h
1.24s on a simulated 4G connection.
step 01
Sold-out sizes share the same border, text colour and hit area as available sizes.
step 02
Bag counter incremented and a toast persisted for 4 seconds.
step 03
Guest path rendered as a 13px text link beneath a full-width account button.
step 04 · raw artefact expires in 24h
Form returned status 422 with the body summarised as: field 'postcode' rejected.
step 05 · raw artefact expires in 24h
One taxonomy across the whole product. Public Circuits are available today; the rest arrive with the execution service.
Unauthenticated journeys across pages anyone can reach.
Journeys behind sign-in using short-lived, scoped credentials.
Multi-role journeys that hand off between requester, reviewer and approver.
The same journey replayed at mobile viewports and input modes.
Keyboard-only, focus order, contrast and semantics checks along the journey.
A Circuit replayed against an approved Baseline to detect drift.
Create a workspace, verify a domain you own, and walk the full journey with fictional demo data while the execution service is being connected.
Execution service not connected. Circuit runs shown here are fictional demo data. The isolated browser workers, queues and AI provider integration are added in the next engineering phase. Nothing on this screen was produced by executing a real website.