What is DigiCert.com SSL Certificate Checker? Can I use it download the certificate of a Website?

DigiCert.com SSL Certificate Checker is an online tool that checks Websites to see if their certificates are valid or not. DigiCert.com SSL Certificate Checker also checks for known vulnerabilities of the Website.

Here is the description provided by digicert.com: "DigiCert® SSL Installation Diagnostics Tool - SSL Certificate Checker - If you are having a problem with your SSL certificate installation, please enter the name of your server. Our installation diagnostics tool will help you locate the problem and verify your SSL Certificate installation."

You can follow these steps to try DigiCert.com SSL Certificate Checker:

1. Go to https://www.digicert.com/help/.

2. Enter this URL: www.visa.com.

2. Click "CHECK SERVER" button. You will see the output with these sections:

Pass - DNS resolves www.visa.com to 92.123.56.141 - HTTP Server Header: AkamaiGHost

Pass - SSL Certificate -

Common Name = www.visa.com
Subject Alternative Names = promocoesvisa.com.br, www.visa.ca, visa.com...
Issuer = GeoTrust SSL CA - G3
Serial Number = 4CBCC05084B902EEE8A078B241F59BB3
SHA1 Thumbprint = 0E7C6E5F89EEE96F1721AC192916709A699010B2
Key Length = 2048
Signature algorithm = SHA256 + RSA (excellent)
Secure Renegotiation: Supported

Pass - SSL Certificate has not been revoked -

OCSP Staple:   Not Enabled
OCSP Origin:   Good
CRL Status:   Good

Pass - SSL Certificate expiration - The certificate expires August 26, 2017 (406 days from today)

Pass - Certificate Name matches www.visa.com -

Server Certificate:
    Subject  www.visa.com
    Valid from 27/May/2016 to 26/Aug/2017
    Issuer  GeoTrust SSL CA - G3

Intermediate Certificate:
    Subject  GeoTrust SSL CA - G3
    Valid from 05/Nov/2013 to 20/May/2022
    Issuer  GeoTrust Global CA

Pass - SSL Certificate is correctly installed - Congratulations! This certificate is correctly installed.

The picture below shows you result for www.visa.com from the Certificate Checker:

⇒ DigiCert.com SSL Certificate Checker Failed Example

⇐ ssllabs SSL Server Tester Failed Example

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