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10 Online Tool to Test SSL, TLS and Latest Vulnerability

10 Online Tool to Test SSL, TLS and Latest Vulnerability

Geek Flare Blog post is sponsored by Netsparker Web Application Security Scanner.

Verify your SSL, TLS & Ciphers implementation.

SSL verification is necessary to ensure your certificate parameters are displayed as expected. There are multiple ways to check SSL certificate, however testing through online tool provides you much useful information listed below.

This also helps you in finding any issues in advance instead of user complaining about them.

Having misconfigured SSL/TLS can lead your website to vulnerable so check out following online tools to find out if something wrong.

1. SSL Labs

SSL Labs by Qualys is one of the most popular SSL testing tools to check all latest vulnerability & misconfiguration. Ex:

  • Certificate issuer, validity, algorithm used to sign
  • Protocol details, cipher suites, handshake simulation

Test results provide detailed technical information; advisable to use for system administrator, auditor, web security engineer to know and fix for any weak parameters.

2. SSL Checker

SSL Checker let you quickly identify if chain certificate is properly implemented. Great idea to proactively test after SSL cert implementation to ensure chain certificate is not broken.

SSL Store got some other tool which might be useful like:

  • CSR Decoder – view the CSR to ensure provided information like CN, OU, O, etc. is correct.
  • SSL Converter – very handy if you need to convert your existing certificate in a different format.

3. Symantec

Check SSL/TLS cert installation test against latest vulnerability like heartbleed, poodle, FREAK, BEAST, CRIME, and provide information like:

  • Enabled Cipher Suites
  • Enabled Protocols
  • Server configuration
  • Secure Renegotiation
  • SSL/TLS Compression
  • OCSP stapling

4. Wormly

Web Server Tester by Wormly check for more than 65 metrics and give you a status of each including overall scores. The report contains certificate overview (CN, Expiry details, Trust chain), Encryption Ciphers details, Public key size, Secure Renegotiation, Protocols like SSLv3/v2, TLSv1/1.2.

5. DigiCert

DigiCert SSL Installation Diagnostics Tool is another fantastic tool to provide you DNS resolves IP address, Certificate details including Issuer, Serial number, key length, signature algorithm, SSL cipher supported by the server and expiry details.

It’s useful if you are looking to verify what all ciphers your server supports.

6. SSL Server Security Test

Useful tool by High-Tech Bridge to perform scan against your https URL and provide in-depth technical information with an option to download the report in PDF format.

  • PCI DSS Compatibility
  • NIST Guidelines Compatibility
  • DH Size
  • Supported Protocols
  • Supported Ciphers
  • TLS Fallback
  • Renegotiation Support
  • Preferred Cipher Suites
  • Third Party Content

7. SSL Analyzer

Comodo Analyzer scans your https URL and gives you quick reports on various parameters including:

  • Serial Number
  • Fingerprint
  • SSL Cert Validity
  • Cert Issuer
  • Supported Protocol (TLS/SSL)
  • Downgrade Protection
  • Secure Renegotiation (Service/Client-initiated)
  • Compression
  • Session Tickets
  • Enabled Cipher Suites

8. SSL Checker

One good thing about SSL Checker is that it has an option to add a reminder (30 days before) about SSL cert expiry. This is great, as I don’t think any other providing this feature in free. Along with this excellent feature, it verifies the basic stuff like:

  • Chain Cert
  • Root Cert
  • Signature algorithm
  • Fingerprint
  • Chain Details
  • SAN

9. HowsMySSL

This is different. It scans the client (browser) and gives you status on various checks like:

  • Supported Protocol Version
  • Compression
  • Session Ticker Support
  • Cipher Supported

To test the client, just access the HowsMySSL from a browser.

10. SSL Checker

SSL Checker by SSL Shopper help you to check certificate issuer, expiry details & chain implementation.

I believe the above listed free online tool is sufficient to validate SSL certificate parameter and gives good technical information for auditing and keep your web application security.

If you are looking to learn in-depth about SSL/TLS operations needed for Dev Ops and System Administration, then you may refer online course by Nisheed K M.

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Chandan Kumar
About Chandan
Chandan Kumar is the founder of Geek Flare. Learn more here and connect with him on Twitter.


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