# Domain Expiry, DNS & SSL Certificate Checker (Bulk) (`quillbit-tools/domain-expiry-dns-ssl-checker`) Actor

Bulk-check domains for registration expiry (RDAP), registrar, nameservers, DNS records (A, AAAA, MX, NS, TXT, SPF, DMARC) and SSL certificate expiry, issuer and days left. No browser, $2 per 1,000 domains.

- **URL**: https://apify.com/quillbit-tools/domain-expiry-dns-ssl-checker.md
- **Developed by:** [Quillbit Tools](https://apify.com/quillbit-tools) (community)
- **Categories:** Developer tools, SEO tools
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $2.00 / 1,000 domain checkeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

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

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
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.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## 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.

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 examples already wired to this Actor's own input schema, see the [API](#api) section below.

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`).

# README

## Domain Expiry, DNS & SSL Certificate Checker (Bulk)

**Domain Expiry, DNS & SSL Certificate Checker** checks a list of domains and returns, for each one, the **domain registration expiry date** and days left, registrar, creation date, status and nameservers (via **RDAP**, the modern replacement for WHOIS), the **DNS records** (A, AAAA, MX, NS, TXT plus parsed **SPF** and **DMARC**), and the **SSL/TLS certificate** issuer, validity dates, **days until the certificate expires**, and whether it is valid.

One row per domain, ready for a spreadsheet or an alert. No contact or personal WHOIS data is collected.

### What can you use it for?

#### Bulk domain expiry checker

Track when your or your clients' domains expire (`daysToDomainExpiry`) and never lose one to a missed renewal.

#### SSL certificate expiry checker

Monitor `sslDaysLeft` across all your sites and catch expired, self-signed or mismatched certificates (`sslValid`, `sslError`).

#### Bulk DNS lookup

Export A, AAAA, MX, NS and TXT records for hundreds of domains in one run.

#### SPF and DMARC checker

See which domains are missing SPF or DMARC records — useful for email deliverability audits and lead qualification.

#### Domain portfolio and WHOIS-style registrar lookup

Get the registrar, created date, status flags and DNSSEC for every domain you manage.

### How to use it

1. Click **Try for free** (or **Start**).
2. Enter your input (see the example below) and click **Save & Start**.
3. Download results as JSON, CSV, Excel or HTML, or read them via the API.

### Input

- `domains` — Domains to check, one per line. Full URLs are reduced to their hostname; `www.` is removed.
- `checkWhois` — Registration data via RDAP (default on).
- `checkDns` — A, AAAA, MX, NS, TXT, SPF, DMARC (default on).
- `checkSsl` — Read the certificate on port 443 (default on).
- `concurrency` — Parallel checks (default 10).

Example input:

```json
{
  "domains": [
    "apify.com",
    "example.com"
  ],
  "checkWhois": true,
  "checkDns": true,
  "checkSsl": true
}
```

### Output example

| domain | registrar | expires | daysToDomainExpiry | sslIssuer | sslDaysLeft | dmarc |
|---|---|---|---|---|---|---|
| apify.com | Amazon Registrar, Inc. | 2035-06-02 | 3153 | Amazon | 94 | v=DMARC1; p=reject; … |
| example.com | RESERVED-Internet Assigned Numbers Authority | 2027-08-13 | 302 | SSL Corporation | 72 | v=DMARC1;p=reject;… |

All output fields: `domain`, `registeredDomain`, `registrar`, `created`, `updated`, `expires`, `daysToDomainExpiry`, `domainStatus`, `nameservers`, `dnssec`, `a`, `aaaa`, `mx`, `ns`, `txt`, `spf`, `dmarc`, `sslIssuer`, `sslSubject`, `sslValidFrom`, `sslValidTo`, `sslDaysLeft`, `sslValid`, `sslError`, `sslAltNames`, `error`

### How much does it cost?

This Actor uses **pay-per-event** pricing. You pay only for results, not for servers or subscriptions:

- **$0.002 per domain checked**, which is **$2.00 per 1,000 domains**
- plus Apify's standard **Actor start** event of $0.00005 per run (per GB of memory; the default 512 MB memory = one event)

| You process | You pay (approx.) |
|---|---|
| 100 domains | $0.20 |
| 1,000 domains | $2.00 |
| 10,000 domains | $20.00 |

Apify's free plan includes monthly platform credit, which is enough to try this Actor at no cost.

### Run it via API, schedule or AI agents

Run from your own code with the Apify API, JavaScript or Python client, schedule it in Apify Console, connect it to Make, Zapier, n8n or Google Sheets, or let an AI agent call it through the Apify MCP server (`https://mcp.apify.com`).

```bash
curl -X POST "https://api.apify.com/v2/acts/quillbit-tools~domain-expiry-dns-ssl-checker/run-sync-get-dataset-items?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"domains": ["apify.com", "example.com"], "checkWhois": true, "checkDns": true, "checkSsl": true}'
```

### FAQ

**Is this a WHOIS lookup?**
It uses RDAP, the official successor to WHOIS run by registries, via rdap.org. It returns registrar, dates, status and nameservers. Some country-code TLDs don't publish RDAP; those rows show `rdapError` while DNS and SSL still work.

**Does it collect owner names, emails or phone numbers?**
No. Contact data is never collected.

**How is SSL checked?**
It opens a TLS connection to port 443 with SNI, reads the certificate, and reports issuer, subject, dates, days left, SANs and whether the chain validates (`sslValid`). Expired certificates show negative `sslDaysLeft`.

**Can I get an alert before something expires?**
Save a task with your domains, schedule it weekly, and filter the dataset on `sslDaysLeft < 14` or `daysToDomainExpiry < 30` in your integration (Slack, email, Google Sheets, Zapier, Make).

**What am I charged for?**
One `domain-checked` event per unique domain, including domains that return errors.

### Related tools by Quillbit Tools

- [Bulk URL Status & Redirect Chain Checker](https://apify.com/quillbit-tools/bulk-redirect-status-checker)
- [Broken Link Checker – crawl a site for 404s](https://apify.com/quillbit-tools/broken-link-crawler)
- [Sitemap URL Extractor](https://apify.com/quillbit-tools/sitemap-url-extractor)
- [Website Tech Stack Detector](https://apify.com/quillbit-tools/tech-stack-detector)
- [Webpage to Markdown for LLMs & RAG](https://apify.com/quillbit-tools/webpage-to-markdown)
- [RSS & Atom Feed to JSON Reader](https://apify.com/quillbit-tools/rss-feed-to-json)

Questions or a feature request? Open an issue on the Actor's **Issues** tab.

# Actor input Schema

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

Domains to check, one per line (example.com). URLs are reduced to their hostname.

## `checkWhois` (type: `boolean`):

Look up registrar, creation and expiry dates, status and nameservers via RDAP. Contact/personal data is never collected.

## `checkDns` (type: `boolean`):

Resolve A, AAAA, MX, NS and TXT records, plus SPF and DMARC.

## `checkSsl` (type: `boolean`):

Connect on port 443 and read the certificate issuer, validity dates and days until expiry.

## `concurrency` (type: `integer`):

How many requests to run in parallel.

## Actor input object example

```json
{
  "domains": [
    "apify.com",
    "example.com"
  ],
  "checkWhois": true,
  "checkDns": true,
  "checkSsl": true,
  "concurrency": 10
}
```

# Actor output Schema

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

All result items in the default dataset.

# 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": [
        "apify.com",
        "example.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("quillbit-tools/domain-expiry-dns-ssl-checker").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": [
        "apify.com",
        "example.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("quillbit-tools/domain-expiry-dns-ssl-checker").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": [
    "apify.com",
    "example.com"
  ]
}' |
apify call quillbit-tools/domain-expiry-dns-ssl-checker --silent --output-dataset

```

## MCP server setup

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

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/3Zd9NhUjEMbxkUpjU/builds/SApvjUvmQyBiFo0Yu/openapi.json