# DataForSEO OnPage Instant Pages API

> Returns instant page-level on-page SEO audit metrics for analyzed web pages. Inspect technical SEO elements and on-page optimization signals for audit workflows.

Source: https://www.sandbase.ai/apis/dataforseo/v3/on_page/instant_pages
API reference: https://www.sandbase.ai/apis/dataforseo/v3/on_page/instant_pages/docs

## Facts

- Provider: DataForSEO
- Type: Data API
- Endpoint: `POST https://api.sandbase.ai/v1/api/dataforseo/v3/on_page/instant_pages`
- Price: $0.005 per call
- Free allowance: 100 calls per organization per UTC day, shared across eligible APIs
- Capabilities: onpage, seo, audit
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

`POST https://api.sandbase.ai/v1/api/dataforseo/v3/on_page/instant_pages` with `Authorization: Bearer $SANDBASE_API_KEY` and the parameters as a JSON body.

## FAQ

### How do I use the DataForSEO OnPage Instant Pages API?

Send a POST request to https://api.sandbase.ai/v1/api/dataforseo/v3/on_page/instant_pages with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.

### How much does the DataForSEO OnPage Instant Pages API cost?

$0.005 per call. Every organization gets 100 free calls per UTC day, shared across eligible SandBase APIs including this one; after that each call is billed at this price from your SandBase balance. There is no subscription.

### What parameters does the DataForSEO OnPage Instant Pages API accept?

DataForSEO OnPage Instant Pages takes no input parameters; send an empty JSON body.

### What does the DataForSEO OnPage Instant Pages API return?

A JSON response returned in the same HTTP request (synchronous).

### Do I need a DataForSEO developer account or API key?

No. DataForSEO OnPage Instant Pages runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for DataForSEO API access separately.

## README

### DataForSEO OnPage Instant Pages API

Returns instant page-level on-page SEO audit results for specific web pages. Call this endpoint to inspect technical SEO health and content optimization signals on demand.

#### Use cases

- Audit single web pages instantly for technical SEO compliance.
- Analyze on-page content and structure during SEO quality checks.
- Diagnose page-level technical issues within automated SEO audit workflows.

#### Request

```bash
curl -X POST "https://api.sandbase.ai/v1/api/dataforseo/v3/on_page/instant_pages" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://www.python.org/"}'
```

#### Parameters

The JSON body is forwarded to the upstream endpoint (one task per call). Fields used above:

| Name | Description |
|---|---|
| `url` | Page URL. |

#### Pricing

Flat price per call. Failed calls are not charged.

#### Related APIs

- [DataForSEO Backlinks Anchors](/model/dataforseo/v3/backlinks/anchors/live): Returns anchor text distribution metrics for backlinks pointing to a target website or page.
- [DataForSEO Backlinks List](/model/dataforseo/v3/backlinks/backlinks/live): Returns a list of external backlinks pointing to a specified target domain or webpage.
- [DataForSEO Backlinks Bulk Ranks](/model/dataforseo/v3/backlinks/bulk_ranks/live): Returns rank metrics for multiple domains or pages in bulk.