# Detect analytics and tag managers on websites

**Use case:** 

Check which analytics tools and tag managers a list of public websites load, with the matching evidence for each. Results also include the CMS, JavaScript frameworks, CDN and web server found on each site. Useful for marketing audits and research on sites you are allowed to analyse.

## Input

```json
{
  "urls": [
    "https://www.python.org/"
  ],
  "minConfidence": 50,
  "maxPagesPerSite": 1,
  "probeWellKnownPaths": false,
  "includeEvidence": true,
  "timeoutSecs": 15,
  "maxConcurrency": 3,
  "ignoreRobotsTxt": false,
  "overrideDomainStop": false,
  "robotsOwnershipAttestation": ""
}
```

## Output

```json
{
  "index": {
    "label": "Index"
  },
  "url": {
    "label": "Url"
  },
  "status": {
    "label": "Status"
  },
  "technologies": {
    "label": "Technologies"
  },
  "pagesScanned": {
    "label": "Pages scanned"
  },
  "probes": {
    "label": "Probes"
  }
}
```

## How it works

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

The Tech Stack Detector - CMS & Technology Lookup Actor is ready to run with the inputs already set for "Detect analytics and tag managers on websites". [Sign up or log in](https://console.apify.com/create-task-from-example/PNqFKdnaQBpTGhYpJ) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Detect analytics and tag managers on websites" task

The Tech Stack Detector - CMS & Technology Lookup Actor will start running based on the input automatically. You can also change all the input fields, like website urls, minimum confidence (0-100), and more, to match your specific use case.

### 3. Receive the "Detect analytics and tag managers on websites" 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 index, url, status, 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 "Detect analytics and tag managers on websites" task via API](https://apify.com/luxe_tasks/tech-stack-detector.md).

## FAQ

### What does the Detect analytics and tag managers on websites task return?

The Detect analytics and tag managers on websites task returns one record per site with each detected technology, its category, version when shown, confidence (0-100) and evidence.

### How much does the analytics detection task cost?

The Detect analytics and tag managers on websites task costs $2 per 1,000 site scans plus a $0.005 start fee per run; failed sites have no per-site charge.

### Can the task miss a tool?

Yes. The Detect analytics and tag managers on websites task is heuristic and does not run JavaScript, so tools loaded only by scripts at runtime can be missed.

## About this Actor

This example demonstrates how to use [Tech Stack Detector - CMS & Technology Lookup](https://apify.com/luxe_tasks/tech-stack-detector.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/luxe_tasks/tech-stack-detector.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/luxe_tasks/tech-stack-detector.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`).