# Check HTTPS certificate renewal dates

**Use case:** 

Check example.com for certificate expiry, issuer, days remaining and TLS version, then replace it with your domains. The renewal window starts at 30 days and is configurable. $0.005 per verified certificate check; platform usage included. Invalid or expired certificates fail normal TLS validation and appear as free OUTPUT errors. No alerts are sent automatically.

## Input

```json
{
  "urls": [
    "https://example.com/"
  ],
  "warningDays": 30
}
```

## Output

```json
{
  "hostname": {
    "label": "hostname",
    "format": "string"
  },
  "validTo": {
    "label": "validTo",
    "format": "string"
  },
  "daysRemaining": {
    "label": "daysRemaining",
    "format": "integer"
  },
  "expiryWarning": {
    "label": "expiryWarning",
    "format": "boolean"
  },
  "issuer": {
    "label": "issuer",
    "format": "object"
  },
  "protocol": {
    "label": "protocol",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [TLS Certificate Expiry Checker | HTTPS Renewal Audit](https://apify.com/sbio-apps/tls-certificate-expiry-checker.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/sbio-apps/tls-certificate-expiry-checker.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`.
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- **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/sbio-apps/tls-certificate-expiry-checker.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).