> ## Documentation Index
> Fetch the complete documentation index at: https://docs.stefanbrain.com/llms.txt
> Use this file to discover all available pages before exploring further.

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> Follow the content contract in AGENTS.md.
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# Find CRO test opportunities across a funnel

> Review a public funnel, inspect the captured evidence, and turn the strongest opportunities into A/B tests.

## What this article shows you

Use **CRO Funnel Review** to find potential A/B tests across a public funnel. StefanBrain follows the reachable path, captures evidence, and turns the strongest observations into test opportunities.

## Practical use cases

<CardGroup cols={2}>
  <Card title="Find tests before sending more traffic" icon="clipboard-check">
    Review the mobile or desktop journey and turn visible friction into a
    pre-launch test plan.
  </Card>

  <Card title="Investigate a weak funnel step" icon="search-check">
    Focus on the page or decision where your data suggests visitors may be
    dropping, then compare the report with your measured results.
  </Card>

  <Card title="Compare a Meta ad with its destination" icon="route">
    Start from a Facebook or Meta Ad Library link and compare the ad promise,
    video, and call to action with the reachable post-click funnel.
  </Card>

  <Card title="Build an A/B test backlog" icon="list-checks">
    Convert the strongest findings into proposed changes, evidence, success
    metrics, and the next information needed.
  </Card>

  <Card title="Reverse-engineer competitor funnels" icon="scan-search">
    Study how competitors or strong funnels in another niche structure their
    ads, pages, offers, and transitions, then extract patterns to test.
  </Card>

  <Card title="Capture a long quiz funnel" icon="file-chart-column">
    Follow a multi-step quiz, create a report of the full captured path, and
    save the useful questions, transitions, and page patterns as a swipe.
  </Card>
</CardGroup>

## How it works

CRO Funnel Review accepts one public landing-page URL or one Meta Ad Library URL per run. Choose **Mobile** or **Desktop**, then tell StefanBrain what decision you want the review to support.

The run follows reachable public interactions, captures page evidence, and stops at a payment boundary, terminal page, blocked path, or crawl limit.

Choose the entry point that fits the source:

| Start in | Best for |
| - | - |
| **Chat** | A landing page, quiz, advertorial, or Meta Ad Library URL where you want to choose the device and review focus. |
| **Creative Strategist** | A connected Meta or AppLovin ad, especially a video ad whose creative and prepared video evidence should carry into the funnel review. |

## Before you start

Prepare:

* One stable public `http` or `https` URL that does not require a login.
* The intended visitor device.
* The decision you want to make, such as message match, offer clarity, quiz friction, or test prioritization.
* Any analytics you want to use after the review to rank the findings.

## Start from Chat

<Steps>
  <Step title="Select the tool and device">
    Open **Chat**, select **Tools**, then select **CRO Funnel Review**.

    Choose **Mobile** or **Desktop** for the visitor experience you want to inspect.

    <Frame caption="CRO Funnel Review adds a device choice directly beside the selected tool.">
      <img src="https://mintcdn.com/copyaccelerator/0b7kYwfWqo7VfDOQ/images/knowledge-base/cro/tool-and-device.jpg?fit=max&auto=format&n=0b7kYwfWqo7VfDOQ&q=85&s=f55dd202cc95ab7772db5869ebef37f6" alt="Chat composer with CRO Funnel Review selected and Mobile and Desktop device choices visible" width="845" height="118" data-path="images/knowledge-base/cro/tool-and-device.jpg" />
    </Frame>
  </Step>

  <Step title="Ask for the outcome you need">
    Use one URL and a focused request:

    ```text theme={"system"}
    Review [public funnel URL] on Mobile for cold-traffic conversion opportunities. Focus on message match, offer clarity, and friction. Return the five strongest A/B tests, with the captured evidence behind each one.
    ```

    For an ad-to-page review, use the Meta Ad Library link as the target:

    ```text theme={"system"}
    Review this Meta ad and its reachable funnel on Desktop: [Meta Ad Library URL]. Analyze the ad creative and video, then find message-match breaks between the ad promise and each captured page. Return the five strongest tests.
    ```
  </Step>

  <Step title="Follow the run">
    Send the request. The progress feed shows the review moving through planning, traversal, evidence extraction, and synthesis.

    Keep the current run open instead of submitting the same target again.
  </Step>

  <Step title="Check the capture before the findings">
    Confirm the device, captured step count, final URL, and stop reason. Open the evidence attached to important findings.

    Use conclusions only for the steps StefanBrain captured. If the run stopped early, the report can still support tests for those captured pages.
  </Step>
</Steps>

## Start from Creative Strategist

Use this path when you are already reviewing an ad, especially a video ad.

<Steps>
  <Step title="Open the ad">
    Select **Creative Strategist**, confirm the source and account, then open the ad you want to review.
  </Step>

  <Step title="Start the CRO review">
    Select **CRO**. StefanBrain carries the selected ad into a Chat-backed review.

    If the ad needs a destination, enter its public **Landing page URL**, then select **Start CRO review**. If video evidence is still being prepared, wait and retry the same action.
  </Step>

  <Step title="Open the completed result">
    Review **CRO Funnel Review - Ad to Checkout**. Select **Open chat** when you want the full report, evidence, or a follow-up.
  </Step>
</Steps>

## Turn the report into tests

For each useful finding, keep four things separate:

| Part | Question |
| - | - |
| Observation | What does the captured page, copy, video, or interaction show? |
| Interpretation | Why might that matter for this visitor? |
| Test | What single change could you compare? |
| Measurement | Which result would support or reject the idea? |

Then ask StefanBrain to organize the findings:

```text theme={"system"}
Turn this report into an A/B test backlog. Rank the strongest captured opportunities for [business goal]. For each test, include the evidence, proposed change, success metric, effort, and anything we still need to verify.
```

For a competitor or quiz-funnel review, ask for a separate swipe report before adapting anything:

```text theme={"system"}
Create a reusable swipe report from this captured funnel. Break down the ad, page sequence, questions, transitions, offer, and calls to action. Separate what the funnel shows from the patterns we may want to test for @Product.
```

## Common mistakes and troubleshooting

<AccordionGroup>
  <Accordion title="StefanBrain asks for one funnel URL">
    Remove extra links and run one target at a time. One Meta Ad Library URL counts as the target because the review resolves its destination.
  </Accordion>

  <Accordion title="The review used the wrong device">
    Start a new run and choose **Mobile** or **Desktop** explicitly.
  </Accordion>

  <Accordion title="The run stopped before the page you expected">
    Check the final URL and stop reason. Use the captured evidence, then confirm that the next page is public and reachable before trying again.
  </Accordion>

  <Accordion title="A finding is not supported by its evidence">
    Move it to **Needs evidence**, inspect adjacent frames, or ask StefanBrain to restate it as an inference.
  </Accordion>

  <Accordion title="The recommendations are too broad">
    Restate the visitor, business decision, page focus, and output you need. Ask for a small number of testable changes.
  </Accordion>
</AccordionGroup>

## Next steps

* [Give Chat the right context](/knowledge-base/chat/give-chat-the-right-context)
* [Find campaign angles with Angle Finder](/knowledge-base/creative-strategist-research/use-angle-finder)
* [Browse Creative Strategist and research guidance](/knowledge-base/creative-strategist-research)
* [Browse Build guidance](/knowledge-base/build)


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