# Broken Link Checker: find 404s and redirect chains on a website

**Use case:** 

Checks the pages of a site (from its sitemap) for broken internal and external links, 4xx/5xx responses and redirect chains. One row per audited page, including the list of broken links found. Pay per event: $0.004 per page audited; link checks are included.

## Input

```json
{
  "startUrls": [
    {
      "url": "https://crawlee.dev"
    }
  ],
  "discoverSitemap": true,
  "maxPages": 25,
  "sameHostOnly": true,
  "followLinks": false,
  "checkLinks": true,
  "maxLinkChecks": 300,
  "timeoutSecs": 20,
  "concurrency": 5
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "string"
  },
  "status": {
    "label": "Status",
    "format": "integer"
  },
  "counts": {
    "label": "Findings",
    "format": "object"
  },
  "title": {
    "label": "Title",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [SEO Audit & Broken Link Checker](https://apify.com/lintlab/seo-site-qa.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/lintlab/seo-site-qa.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/lintlab/seo-site-qa.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).