# Pre-launch diff of key pages (source vs staging)

**Use case:** 

Compare your live site against a staging or redesigned version before switching DNS. Checks status codes, redirects, titles, meta descriptions, canonicals, headings, word count and structured data, and reports every regression with a severity rating.

## Input

```json
{
  "sourceBaseUrl": "https://www.example.com",
  "targetBaseUrl": "https://staging.example.com",
  "paths": [
    "/",
    "/pricing",
    "/about",
    "/contact"
  ],
  "discoverPathsFromSitemap": false,
  "maxPaths": 500,
  "checkBrokenLinks": false,
  "wordCountTolerancePercent": 10,
  "responseTimeTolerancePercent": 50,
  "ignoreFields": [],
  "onlyReportPathsWithDifferences": false,
  "maxConcurrency": 5,
  "requestTimeoutSecs": 30,
  "respectRobotsTxt": true,
  "outputDetail": "detailed",
  "debug": false
}
```

## Output

```json
{
  "path": {
    "label": "Path",
    "format": "string"
  },
  "score": {
    "label": "Score",
    "format": "integer"
  },
  "worstSeverity": {
    "label": "Worst",
    "format": "string"
  },
  "differenceCount": {
    "label": "# diffs",
    "format": "integer"
  }
}
```

## About this Actor

This example demonstrates how to use [Website Migration QA — Source vs Target Diff](https://apify.com/moonweil/website-migration-qa.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/moonweil/website-migration-qa.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
This Task's input is already configured above — use it as-is rather than inventing a new one.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

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

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).