# Monitor Competitor Technology Stack Changes

**Use case:** 

Monitor public technology-stack changes for two sample competitors. Replace the domains and external IDs, then keep the same Task and watch list on every run. The first run creates a BASELINE; later complete scans emit additions, version changes, and confirmed two-scan removals in the changes view.

## Input

```json
{
  "domains": [
    {
      "domain": "shopify.com",
      "externalId": "sample-competitor-shopify"
    },
    {
      "domain": "hubspot.com",
      "externalId": "sample-competitor-hubspot"
    }
  ],
  "mode": "monitor",
  "outputMode": "changesOnly",
  "watchTechnologies": [
    "Google Analytics",
    "Google Tag Manager",
    "HubSpot",
    "Klaviyo",
    "Magento",
    "Shopify",
    "Stripe",
    "WooCommerce"
  ],
  "includeDns": true,
  "includeTls": false,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}
```

## Output

```json
{
  "external_id": {
    "label": "External ID",
    "format": "string"
  },
  "domain": {
    "label": "Domain",
    "format": "string"
  },
  "status": {
    "label": "Status",
    "format": "string"
  },
  "change_type": {
    "label": "Change type",
    "format": "string"
  },
  "events": {
    "label": "Monitoring events",
    "format": "array"
  },
  "technologies": {
    "label": "Technologies",
    "format": "array"
  },
  "fingerprint": {
    "label": "Semantic fingerprint",
    "format": "string"
  },
  "scraped_at": {
    "label": "Observed at",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [Website Tech Stack Scraper & Change Monitor](https://apify.com/automa-flow/website-tech-stack-monitor.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/automa-flow/website-tech-stack-monitor.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.
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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).
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For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/automa-flow/website-tech-stack-monitor.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).