# API Reference

This API reference is organized by resource type. Each resource type has one or more data representations and one or more methods.

## Pagespeedapi

For Pagespeedapi Resource details, see the [resource representation](https://developers.google.com/speed/docs/insights/v4/reference/pagespeedapi#resource) page.

| Method | HTTP request | Description |
|---|---|---|
| URIs relative to https://www.googleapis.com/pagespeedonline/v4, or https://www.googleapis.cn/pagespeedonline/v4 for China users. |||
| [runpagespeed](https://developers.google.com/speed/docs/insights/v4/reference/pagespeedapi/runpagespeed) | `GET /runPagespeed` | Runs PageSpeed analysis on the page at the specified URL, and returns PageSpeed scores, a list of suggestions to make that page faster, and other information. <br /> **Required query parameters:** `url` |