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SSL Checker

Check SSL certificate information, validity, and security configuration

Key Facts

Category
Development
Input Types
text, number, checkbox
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The SSL Checker is a professional diagnostic tool designed to verify the status, validity, and security configuration of SSL/TLS certificates for any domain. It provides instant insights into certificate details, chain integrity, and server-side security headers to ensure your web traffic remains encrypted and secure.

When to Use

  • •Before deploying a new SSL certificate to ensure it is correctly installed and trusted.
  • •When troubleshooting 'Your connection is not private' errors or browser security warnings.
  • •During routine security audits to verify that your server uses modern encryption standards and secure headers.

How It Works

  • •Enter the hostname of the website you wish to analyze in the input field.
  • •Select optional configurations such as including the certificate chain or checking HTTP security headers.
  • •Click the check button to initiate a handshake with the server and retrieve the certificate data.
  • •Review the generated report for details on expiration, issuer, encryption strength, and security configuration.

Use Cases

Validating that a newly installed SSL certificate is correctly recognized by external clients.
Monitoring certificate expiration dates to prevent unexpected site downtime.
Auditing web server configurations to ensure compliance with modern security best practices.

Examples

1. Verifying Production Certificate Status

Web Developer
Background
A developer recently renewed an SSL certificate for a production e-commerce site and wants to confirm it is active.
Problem
Need to ensure the new certificate is correctly installed and the chain is complete to avoid checkout errors.
How to Use
Enter the domain name, enable 'Include Certificate Chain', and run the check.
Example Config
hostname: shop.example.com, includeChain: true
Outcome
The tool confirms the new expiration date and verifies that the full certificate chain is correctly served.

2. Security Header Audit

System Administrator
Background
An administrator is hardening a web server and wants to verify that security headers are correctly implemented.
Problem
Need to confirm that HSTS and other security headers are active to protect against protocol downgrade attacks.
How to Use
Enter the domain and ensure 'Check HTTP Security Headers' is toggled on.
Example Config
hostname: secure.example.com, checkHeaders: true
Outcome
The tool displays the current HTTP headers, allowing the admin to verify the presence and configuration of HSTS.

Try with Samples

development
SSL Certificate Management Samples
SSL certificate management examples including Let's Encrypt automation, certificate renewal, monitoring, and security best practices
title token ssl
sample
Network Security and SSL/TLS Configuration
Comprehensive network security examples including SSL/TLS configuration, firewall rules, VPN setup, and network scanning protection
title token ssl
sample
Path Analyzer Samples
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task analyze
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US SSN Samples
Collection of US Social Security Number formats for validation testing
task format
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FAQ

What information does the SSL Checker provide?

It provides the certificate's expiration date, issuer, subject, public key details, and a validation of the certificate chain.

Can I check certificates on non-standard ports?

Yes, you can specify a custom port number if your SSL/TLS service is running on a port other than the default 443.

Why is it important to check the certificate chain?

Checking the chain ensures that your server is sending all necessary intermediate certificates, preventing trust errors on mobile devices and older browsers.

Does this tool check for HTTP security headers?

Yes, when enabled, the tool scans for essential security headers like HSTS, X-Content-Type-Options, and others to verify your server's security posture.

Is the SSL Checker tool free to use?

Yes, this is a free utility tool available for unlimited use to help developers and administrators maintain secure web environments.

API Documentation

Request Endpoint

POST /en/api/tools/ssl-checker

Request Parameters

Parameter Name Type Required Description
hostname text Yes -
port number No -
includeChain checkbox No -
checkSecurity checkbox No -
checkHeaders checkbox No -

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-ssl-checker": {
      "name": "ssl-checker",
      "description": "Check SSL certificate information, validity, and security configuration",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=ssl-checker",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]