# Hreflang checker: audit a multilingual website

**Use case:** 

Audit a multilingual website for hreflang and international SEO issues: invalid hreflang codes, hreflang sets without a self-reference, canonicals pointing to another URL or domain and a missing html lang attribute, plus title, meta description and heading checks. Each page gets a 0-100 score and fix hints. The example crawls the multilingual docs of an open-source project; use your own site.

## Input

```json
{
  "startUrls": [
    "https://kubernetes.io/docs/home/"
  ],
  "mode": "crawl",
  "maxPagesPerSite": 10,
  "maxDepth": 5,
  "checkLinks": "none",
  "maxLinkChecksPerSite": 300,
  "includeSiteSummary": true,
  "includeSubdomains": false,
  "includeUrlPatterns": [
    "/docs/"
  ],
  "skipUrlsWithQuery": true,
  "maxConcurrencyPerSite": 3,
  "maxConcurrentSites": 3,
  "requestTimeoutSecs": 20
}
```

## Output

```json
{
  "rowType": {
    "label": "Row",
    "format": "string"
  },
  "url": {
    "label": "URL",
    "format": "string"
  },
  "httpStatus": {
    "label": "HTTP",
    "format": "integer"
  },
  "score": {
    "label": "Score",
    "format": "integer"
  },
  "issueCount": {
    "label": "#",
    "format": "integer"
  },
  "issueIds": {
    "label": "Issues",
    "format": "array"
  },
  "title": {
    "label": "Title",
    "format": "string"
  },
  "indexable": {
    "label": "Indexable",
    "format": "boolean"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The SEO Audit & Site Audit: Broken Links & AI Bot Check Actor is ready to run with the inputs already set for "Hreflang checker: audit a multilingual website". [Sign up or log in](https://console.apify.com/create-task-from-example/TCtZpiHiSU2PjVxat) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Hreflang checker: audit a multilingual website" task

The SEO Audit & Site Audit: Broken Links & AI Bot Check Actor will start running based on the input automatically. You can also change all the input fields, like websites, mode, and more, to match your specific use case.

### 3. Receive the "Hreflang checker: audit a multilingual website" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as row, URL, HTTP, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Hreflang checker: audit a multilingual website" task via API](https://apify.com/lindenwerk/seo-audit-crawler.md).

## About this Actor

This example demonstrates how to use [SEO Audit & Site Audit: Broken Links & AI Bot Check](https://apify.com/lindenwerk/seo-audit-crawler.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/lindenwerk/seo-audit-crawler.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/lindenwerk/seo-audit-crawler.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`).