# SSL Certificate Checker: Bulk Expiry, Issuer & Chain (`globose_talent_mn9/ssl-certificate-checker`) Actor

Check SSL/TLS certificates of many domains at once: days until expiry, issuer, SANs, hostname match, trust chain, TLS version, cipher. Expiry monitoring. $0.30 per 1,000 domains, unreachable hosts free.

- **URL**: https://apify.com/globose_talent_mn9/ssl-certificate-checker.md
- **Developed by:** [Andrew Shamah](https://apify.com/globose_talent_mn9) (community)
- **Categories:** Developer tools, SEO tools, Automation
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.30 / 1,000 certificate 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

## SSL Certificate Checker – bulk SSL/TLS expiry, issuer & chain check

Check the SSL/TLS certificate of **hundreds of domains in one run**. For each host you get days until expiry, issuer, SAN list, hostname match, trust status, chain, TLS protocol, cipher, key type and SHA-256 fingerprint, plus a plain-language `issues` list (expired, expiring soon, hostname mismatch, untrusted/self-signed, old TLS).

### Use cases

- **Certificate expiry monitoring**: schedule daily and alert on `daysLeft < 30`.
- Agency/IT audits of client domains, M\&A due diligence, finding self-signed or misconfigured hosts.

### Input

```json
{ "domains": ["apify.com", "github.com", "mail.example.com:465"], "warnDays": 30 }
```

### Output (one item per host)

```json
{ "host": "github.com", "valid": true, "daysLeft": 87, "validTo": "2027-02-05T23:59:59.000Z", "issuer": "Sectigo ECC Domain Validation Secure Server CA", "hostMatch": true, "trusted": true, "protocol": "TLSv1.3", "san": ["github.com","www.github.com"], "issues": [] }
```

### Pricing

**$0.0003 per certificate checked** ($0.30 per 1,000) + a tiny start fee. Hosts that can't be reached are **free**.

### Notes

Connects directly to the host (TLS handshake only, no HTTP request). Works with any port (e.g. `host:8443`).

### Related Actors

#### SEO & web suite

- [SEO Audit Crawler](https://apify.com/globose_talent_mn9/seo-audit-crawler)
- [Broken Link Checker](https://apify.com/globose_talent_mn9/broken-link-checker)
- [Sitemap URL Extractor](https://apify.com/globose_talent_mn9/sitemap-urls)
- [Bulk Redirect Checker](https://apify.com/globose_talent_mn9/redirect-checker)
- [Website Metadata / Open Graph Extractor](https://apify.com/globose_talent_mn9/website-metadata-extractor)
- [Website Screenshot](https://apify.com/globose_talent_mn9/website-screenshot)
- [Website Image Extractor](https://apify.com/globose_talent_mn9/website-image-extractor)
- [Subdomain Finder](https://apify.com/globose_talent_mn9/subdomain-finder)
- [DNS & Email Security Checker (SPF/DKIM/DMARC)](https://apify.com/globose_talent_mn9/dns-email-security-checker)
- [WHOIS Domain Lookup](https://apify.com/globose_talent_mn9/whois-domain-lookup)
- [Domain Availability Checker](https://apify.com/globose_talent_mn9/domain-availability-rdap)
- [Tech Stack Detector](https://apify.com/globose_talent_mn9/tech-stack-detector)

#### Documents suite

- [PDF Text Extractor](https://apify.com/globose_talent_mn9/pdf-text-extractor)
- [Scanned PDF & Image OCR](https://apify.com/globose_talent_mn9/pdf-image-ocr)
- [Article Extractor](https://apify.com/globose_talent_mn9/article-extractor)
- [URL & HTML to PDF Converter](https://apify.com/globose_talent_mn9/url-to-pdf)

#### Jobs suite

- [Greenhouse Jobs API](https://apify.com/globose_talent_mn9/greenhouse-jobs-api)
- [Lever Jobs API](https://apify.com/globose_talent_mn9/lever-jobs-api)
- [Ashby Jobs API](https://apify.com/globose_talent_mn9/ashby-jobs-api)
- [Workday Jobs API](https://apify.com/globose_talent_mn9/workday-jobs-api)
- [Company Jobs API (10 ATS)](https://apify.com/globose_talent_mn9/ats-jobs-api)
- [Remote Jobs Aggregator](https://apify.com/globose_talent_mn9/remote-jobs-aggregator)

#### Also by us

- [Wayback Machine Snapshots](https://apify.com/globose_talent_mn9/wayback-machine-snapshots)
- [RSS Feed Reader](https://apify.com/globose_talent_mn9/rss-feed-reader)
- [Website Contact Details Scraper](https://apify.com/globose_talent_mn9/website-contact-details-scraper)

# Actor input Schema

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

Domains, hosts or URLs (host:port supported), one per line.

## `warnDays` (type: `integer`):

Flag certificates that expire within this many days.

## `timeoutSecs` (type: `integer`):

Seconds to wait for the TLS handshake.

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

Hosts checked at once.

## `maxDomains` (type: `integer`):

Check at most this many (0 = all).

## Actor input object example

```json
{
  "domains": [
    "apify.com",
    "github.com",
    "expired.badssl.com"
  ],
  "warnDays": 30,
  "timeoutSecs": 15,
  "concurrency": 10,
  "maxDomains": 0
}
```

# Actor output Schema

## `overview` (type: `string`):

All hosts (overview table).

## `summary` (type: `string`):

Counts.

# 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",
        "github.com",
        "expired.badssl.com"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("globose_talent_mn9/ssl-certificate-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",
        "github.com",
        "expired.badssl.com",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("globose_talent_mn9/ssl-certificate-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",
    "github.com",
    "expired.badssl.com"
  ]
}' |
apify call globose_talent_mn9/ssl-certificate-checker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,globose_talent_mn9/ssl-certificate-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/XJFnkX0tyc1bZ7iLA/builds/rrFcfiflaPKC4hPr3/openapi.json