# Rogue or unauthorized certificate check

**Use case:** 

Check a domain's full Certificate Transparency history: every CA that ever issued for it, and whether any were revoked. Catch hijacks early.

## Input

```json
{
  "items": [
    "stripe.com",
    "paypal.com"
  ],
  "maxConcurrency": 5,
  "proxyConfiguration": {
    "useApifyProxy": true
  }
}
```

## Output

```json
{
  "data.domain": {
    "label": "Domain",
    "format": "text"
  },
  "data.uniqueIssuers": {
    "label": "Issuers seen",
    "format": "array"
  },
  "data.hasRevoked": {
    "label": "Has revoked cert",
    "format": "boolean"
  },
  "data.latestIssuer": {
    "label": "Latest issuer",
    "format": "text"
  },
  "data.latestNotAfter": {
    "label": "Latest expiry",
    "format": "date"
  }
}
```

## About this Actor

This example demonstrates how to use [TLS Certificate Lookup — Certificate Transparency API](https://apify.com/accountable_eel/tls-certificate-lookup.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/accountable_eel/tls-certificate-lookup.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/accountable_eel/tls-certificate-lookup.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).