---
sidebar_label: Metrics
---
# Metrics interface
#### Signature:
```typescript
export interface Metrics
```
## Properties
| Property | Modifiers | Type | Description | Default |
| ------------------------------------------------------------------ | --------- | ------ | ----------------- | ------- |
| [Documents?](./puppeteer.metrics.documents.md) | | number | (Optional) | |
| [Frames?](./puppeteer.metrics.frames.md) | | number | (Optional) | |
| [JSEventListeners?](./puppeteer.metrics.jseventlisteners.md) | | number | (Optional) | |
| [JSHeapTotalSize?](./puppeteer.metrics.jsheaptotalsize.md) | | number | (Optional) | |
| [JSHeapUsedSize?](./puppeteer.metrics.jsheapusedsize.md) | | number | (Optional) | |
| [LayoutCount?](./puppeteer.metrics.layoutcount.md) | | number | (Optional) | |
| [LayoutDuration?](./puppeteer.metrics.layoutduration.md) | | number | (Optional) | |
| [Nodes?](./puppeteer.metrics.nodes.md) | | number | (Optional) | |
| [RecalcStyleCount?](./puppeteer.metrics.recalcstylecount.md) | | number | (Optional) | |
| [RecalcStyleDuration?](./puppeteer.metrics.recalcstyleduration.md) | | number | (Optional) | |
| [ScriptDuration?](./puppeteer.metrics.scriptduration.md) | | number | (Optional) | |
| [TaskDuration?](./puppeteer.metrics.taskduration.md) | | number | (Optional) | |
| [Timestamp?](./puppeteer.metrics.timestamp.md) | | number | (Optional) | |