https://github.com/apiverve/ssl-checker-python-tutorial
SSL certificate checker that validates domain certificates using Python
https://github.com/apiverve/ssl-checker-python-tutorial
apiverve certificate cli devops python security ssl ssl-checker tutorial
Last synced: about 12 hours ago
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SSL certificate checker that validates domain certificates using Python
- Host: GitHub
- URL: https://github.com/apiverve/ssl-checker-python-tutorial
- Owner: apiverve
- License: mit
- Created: 2026-02-16T06:25:47.000Z (4 months ago)
- Default Branch: main
- Last Pushed: 2026-02-16T07:41:13.000Z (4 months ago)
- Last Synced: 2026-02-16T14:18:48.393Z (4 months ago)
- Topics: apiverve, certificate, cli, devops, python, security, ssl, ssl-checker, tutorial
- Language: Python
- Homepage: https://apiverve.com/marketplace/sslchecker
- Size: 13.7 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# SSL Certificate Checker | APIVerve API Tutorial
[](LICENSE)
[]()
[](https://python.org)
[](https://apiverve.com/marketplace/sslchecker?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial)
A Python CLI tool that checks SSL certificates for any domain. View certificate details, expiry dates, and security status.
---
### Get Your Free API Key
This tutorial requires an APIVerve API key. **[Sign up free](https://dashboard.apiverve.com?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial)** - no credit card required.
---
## Features
- Check SSL certificates for any domain
- See issuer and subject details
- View validity dates
- Certificate key size
- Serial number information
- Interactive mode or command-line arguments
## Quick Start
1. **Clone this repository**
```bash
git clone https://github.com/apiverve/ssl-checker-python-tutorial.git
cd ssl-checker-python-tutorial
```
2. **Install dependencies**
```bash
pip install -r requirements.txt
```
3. **Add your API key**
Open `checker.py` and replace the API key:
```python
API_KEY = 'your-api-key-here'
```
4. **Run the checker**
Interactive mode:
```bash
python checker.py
```
Command line mode:
```bash
python checker.py google.com
```
## Usage Examples
### Check a domain
```bash
$ python checker.py ebay.com
==================================================
SSL Certificate Check: ebay.com
==================================================
✅ Certificate Found
📋 Certificate Details:
----------------------------------------------
Subject: ebay.com
Issuer: Sectigo Public Server Authentication CA OV R36
Valid From: Jul 28 00:00:00 2025 GMT
Valid To: Jul 28 23:59:59 2026 GMT
Key Size: 2048 bits
Serial: 99F408949A6416EDC3B8F5EC77B2EBE5
==================================================
```
## Project Structure
```
ssl-checker-python-tutorial/
├── checker.py # Main Python script
├── requirements.txt # Dependencies (requests)
├── screenshot.jpg # Preview image
├── LICENSE # MIT license
├── .gitignore # Git ignore rules
└── README.md # This file
```
## How It Works
1. User provides a domain name
2. Script cleans and validates the input
3. API checks the SSL certificate
4. Script calculates days until expiry
5. Results displayed with status indicators
### The API Call
```python
response = requests.get(
'https://api.apiverve.com/v1/sslchecker',
params={'domain': domain},
headers={'x-api-key': API_KEY}
)
```
## API Reference
**Endpoint:** `GET https://api.apiverve.com/v1/sslchecker`
**Query Parameters:**
| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `domain` | string | Yes | Domain to check (e.g., "google.com") |
**Example Response:**
```json
{
"status": "ok",
"error": null,
"data": {
"subject": {
"C": "US",
"ST": "California",
"O": "eBay, Inc.",
"CN": "ebay.com"
},
"issuer": {
"C": "GB",
"O": "Sectigo Limited",
"CN": "Sectigo Public Server Authentication CA OV R36"
},
"valid_from": "Jul 28 00:00:00 2025 GMT",
"valid_to": "Jul 28 23:59:59 2026 GMT",
"serialNumber": "99F408949A6416EDC3B8F5EC77B2EBE5",
"bits": 2048,
"domain": "ebay.com"
}
}
```
## Use Cases
- **DevOps monitoring** - Check certificate expiry dates
- **Security audits** - Verify SSL configuration
- **Website maintenance** - Prevent expired certificate downtime
- **Compliance checking** - Ensure proper SSL setup
- **Domain management** - Monitor multiple domains
## Customization Ideas
- Add email alerts for expiring certificates
- Monitor multiple domains from a list
- Save results to CSV/JSON
- Build a web dashboard
- Integrate with Slack/Discord notifications
- Add scheduling with cron
## Related APIs
Explore more APIs at [APIVerve](https://apiverve.com/marketplace?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial):
- [DNS Lookup](https://apiverve.com/marketplace/dnslookup?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - Check DNS records
- [WHOIS Lookup](https://apiverve.com/marketplace/whoislookup?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - Domain registration info
- [Website Screenshot](https://apiverve.com/marketplace/webscreenshots?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - Capture website screenshots
## Free Plan Note
This tutorial works with the free APIVerve plan. Some APIs may have:
- **Locked fields**: Premium response fields return `null` on free plans
- **Ignored parameters**: Some optional parameters require a paid plan
The API response includes a `premium` object when limitations apply. [Upgrade anytime](https://dashboard.apiverve.com/plans) to unlock all features.
## License
MIT - see [LICENSE](LICENSE)
## Links
- [Get API Key](https://dashboard.apiverve.com?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - Sign up free
- [APIVerve Marketplace](https://apiverve.com/marketplace?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - Browse 300+ APIs
- [SSL Checker API](https://apiverve.com/marketplace/sslchecker?utm_source=github&utm_medium=tutorial&utm_campaign=ssl-checker-python-tutorial) - API details