# Domain Expiry Sentinel (`checksmithcats/domain-expiry-sentinel`) Actor

Reports public RDAP, TLS certificate, MTA-STS, DMARC RUA, and security.txt deadline signals for bare domains.

- **URL**: https://apify.com/checksmithcats/domain-expiry-sentinel.md
- **Developed by:** [Checksmith Cats](https://apify.com/checksmithcats) (community)
- **Categories:** Developer tools, Automation
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.30 / domain expiry report generated

This Actor is paid per event and usage. You are charged both the fixed price for specific events and for Apify platform usage.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## 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.
The best way to integrate Actors is as follows.

- **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 usage examples, see the [API](#api) section below.

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).

# README

## Domain Expiry Sentinel

Domain Expiry Sentinel reports compact expiry and machine-readable deadline signals for domains you own, manage, or have permission to check.

It checks:

- RDAP expiration events exposed by public domain records
- TLS certificate `notAfter` dates on port 443
- MTA-STS TXT presence and policy `max_age`
- DMARC `rua` reporting-address presence
- `/.well-known/security.txt` `Expires` values

Each domain is reported as a set of observed public signals. Signals are marked `ok`, `warn`, or `unknown`; `unknown` means the signal was missing, unreachable, blocked by scanner safety rules, or not machine-readable from the public surface.

### Outputs

- Dataset rows: one row per checked signal
- `REPORT.json`: full structured report and evidence pack
- `REPORT.html`: readable report
- `REPORT.md`: Markdown report

### Billing

Pay-per-event billing is based only on domains where at least one public signal was observable. Invalid input is not charged.

### Boundary

This Actor does not renew domains, change DNS, monitor uptime, assess security-team quality, audit registrar accounts, or certify that a domain or policy is safe. It records scanner-visible public signals at the time of the run.

### References

- RDAP: RFC 9082 / RFC 9083
- MTA-STS: RFC 8461
- DMARC: RFC 7489
- security.txt: RFC 9116

### Related tools

- Policy Page Drift Pack - Use when domain deadline signals should be paired with policy-page drift.
- Agency Evidence Pack - Use when expiry signals are part of a multi-client monthly record.
- Security Headers Bulk QA - Use when the same domains also need public response-header checks.

# Actor input Schema

## `domains` (type: `array`):

Bare domains to check. Use domains such as example.com, not URLs.

## `domain` (type: `string`):

Optional single bare domain. Provide either this field or Domains. Providing both is rejected without a custom charge.

## Actor input object example

```json
{
  "domains": [
    "example.com",
    "example.org"
  ]
}
```

# Actor output Schema

## `results` (type: `string`):

No description

## `report` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "domains": [
        "example.com",
        "example.org"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("checksmithcats/domain-expiry-sentinel").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "domains": [
        "example.com",
        "example.org",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("checksmithcats/domain-expiry-sentinel").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "domains": [
    "example.com",
    "example.org"
  ]
}' |
apify call checksmithcats/domain-expiry-sentinel --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,checksmithcats/domain-expiry-sentinel"
        }
    }
}

```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/LGGiWZmau73EjpTzZ/builds/uy7yfDXnJpZYPUHr2/openapi.json