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

# Web Scraping Overview

> Introduction to web scraping capabilities

# Web Scraping Overview

Learn about the web scraping capabilities and how to extract data from websites effectively.

## Features

Our web scraping nodes provide:

* Automated data extraction
* Dynamic content handling
* Rate limiting and politeness
* Proxy support
* Data parsing and cleaning

## Available Nodes

### Extract Content

* Basic HTML extraction
* Dynamic JavaScript content
* Form submission
* Authentication handling

### Bulk Operations

* Multiple URL processing
* Concurrent scraping
* Queue management
* Error handling

### Data Processing

* Content parsing
* Data cleaning
* Format conversion
* Validation

## Best Practices

1. Respect robots.txt
2. Implement rate limiting
3. Handle errors gracefully
4. Use appropriate headers
5. Cache when possible

## Example Usage

### Basic Scraping

```json theme={null}
{
  "url": "https://example.com",
  "selectors": {
    "title": "h1",
    "content": ".main-content",
    "links": "a[href]"
  }
}
```

### Advanced Configuration

```json theme={null}
{
  "url": "https://example.com",
  "config": {
    "wait_for": ".dynamic-content",
    "timeout": 5000,
    "proxy": {
      "enabled": true,
      "rotation": true
    },
    "headers": {
      "User-Agent": "Custom Bot 1.0",
      "Accept-Language": "en-US"
    }
  }
}
```

## Rate Limiting

Configure scraping speeds:

```json theme={null}
{
  "rate_limit": {
    "requests_per_second": 2,
    "concurrent_requests": 5,
    "delay_between_requests": 500
  }
}
```

## Error Handling

Common scenarios:

* Network timeouts
* Rate limiting
* Blocked requests
* Invalid selectors
* Parse errors

## Data Validation

Validate extracted data:

```json theme={null}
{
  "validation": {
    "required_fields": ["title", "price"],
    "format": {
      "price": "number",
      "date": "ISO8601"
    },
    "constraints": {
      "title": {
        "min_length": 5,
        "max_length": 200
      }
    }
  }
}
```

## Security Considerations

1. Handle sensitive data appropriately
2. Respect website terms of service
3. Implement proper authentication
4. Use secure connections
5. Monitor for blocking/detection