> For the complete documentation index, see [llms.txt](https://docs.does.qa/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.does.qa/test-steps/validator/performance.md).

# Performance

Performance compares the Lighthouse performance score for the current page with the threshold you set. Use it when slow loads on key screens should fail the Run the same way a broken button would.

![Performance Test Step](https://app.does.qa/screenshots/node/validate_lighthouse_checkPerformance.png)

## When to use it

* Catch regressions on landing pages, dashboards, or checkout screens.
* Set a score threshold your team expects. The default comparison is greater than or equal to `85`.
* Run after the page has finished loading and after login or consent steps.

For a Flow Builder walkthrough, see [Test page performance](/better-coverage/test-page-performance.md).

## Configure

### Basics

| Field               | What to set                                              |
| ------------------- | -------------------------------------------------------- |
| **Comparison Type** | [Comparison Type](/test-step-options/comparison-type.md) |
| **Value**           | Score threshold and/or [Values](/values/value-store.md)  |

### Advanced

| Field                     | What to set                                                          |
| ------------------------- | -------------------------------------------------------------------- |
| **Status on fail**        | [Failed Status](/test-step-options/failed-status.md)                 |
| **Value Standardization** | [Value Standardization](/test-step-options/value-standardization.md) |

{% hint style="info" %}
**Pro tip:** Add [SEO](/test-steps/validator/seo.md) and [Accessibility](/test-steps/validator/accessibility.md) on the same screen when you want several Lighthouse scores in one journey.
{% endhint %}

## Related

* [SEO](/test-steps/validator/seo.md)
* [Accessibility](/test-steps/validator/accessibility.md)
* [Best Practices](/test-steps/validator/best-practices.md)
* [Validator](/test-steps/validator.md)
* [Test page performance](/better-coverage/test-page-performance.md)

**Tags:** `validate`, `lighthouse`, `checkPerformance`, `test`, `expect`, `assert`, `check`, `valid`, `validator`, `performance`, `speed`, `load`, `time`