Google SSL checker. Google offers several tools and extensions for checking SSL certificates. The SSL Checker extension for Chrome uses sslchecker.com to provide information about the SSL certification of the currently active tab.
Another Chrome extension, TLS/SSL checker and reminder by ElevenGuard, monitors TLS/SSL certificate expiration and provides key details from a TLS/SSL certificate, including the expiration date and Certificate Authority (CA).
For Android users, the SSL Certificate Checker app provides quick and easy verification and monitoring of SSL certificates on your or other servers.
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SSL Checker IP Address
Several online tools allow you to check the SSL certificate of a website using its IP address.
For instance, the SSL Checker tool from The SSL Store can verify that the SSL Certificate on your web server is properly installed and trusted.
Similarly, SSL Shopper’s SSL Checker helps you quickly diagnose problems with your SSL certificate installation.
Check SSL Certificate Expiration Date
You can check the expiration date of an SSL certificate manually or using automated tools.
Manually, you can click on the padlock icon on the leftmost corner of the address bar, click on the “Connection is secure” label, then click on “Certificate is valid” label.
In the General tab, locate the “Valid from…to…” property to see the validity period of the certificate. Automated tools like the SSL Certificate Expiry monitoring from Site24x7 can alert you before your SSL certificate expires.
SSL Checker Local
For checking SSL certificates locally, you can use tools like OpenSSL. OpenSSL is a command-line tool that can be used to view the status of a website’s certificate, including its validity status, issuer, and other attributes.
How to Check SSL Certificate in Windows
The DigiCert Certificate Utility for Windows is a free tool that simplifies the management of SSL/TLS certificates.
It automates the creation of Certificate Signing Requests (CSRs), the installation of certificates, and the assignment of friendly names. The utility also includes an SSL checker that can diagnose common installation problems.
Check Certificate Chain
The certificate chain is a hierarchical structure that ensures the authenticity and integrity of the SSL certificate used by a website. It consists of multiple certificates, each signed by the certificate authority (CA) of the previous certificate in the chain, ultimately leading to a trusted root certificate.
When a user visits a website secured with SSL/TLS, their browser checks the certificate chain to verify the authenticity of the website’s SSL certificate. The browser starts by checking if the SSL certificate presented by the website is signed by a trusted root certificate. If it is, the browser considers the website’s certificate as valid and proceeds with the secure connection.
However, if the website’s certificate is not directly signed by a trusted root certificate, the browser continues to examine the certificate chain. It checks the intermediate certificates, which are signed by a trusted root certificate, and verifies their authenticity. This process continues until the browser reaches a trusted root certificate.
The SSL Checker tool allows users to view the complete certificate chain of a website. It displays all the intermediate certificates and the trusted root certificate that validate the SSL certificate of the website. This information helps users understand the trustworthiness of the SSL certificate and ensures that the website’s security is maintained.
By examining the certificate chain, users can also identify any potential issues or errors in the chain. For example, if an intermediate certificate is missing or expired, it can cause trust errors and impact the website’s security. The SSL Checker tool can highlight such issues and provide recommendations for resolving them.
Overall, the ability to discover the certificate chain through SSL Checker tools is crucial for ensuring the proper validation and security of SSL certificates used by websites. It allows users to verify the authenticity of the certificates and identify any potential vulnerabilities in the chain, ultimately enhancing the trustworthiness and reliability of the website’s SSL/TLS connection.
How to Check SSL Certificate in Linux
In Linux, you can use the OpenSSL command-line tool to check SSL certificates. The openssl s_client command can be used to connect to a server, retrieve the certificate, and display its details.
Conclusion
SSL Checker tools are essential for ensuring the security and integrity of a website. They provide detailed information about the SSL certificate and can help identify and resolve potential issues.
Whether you’re using a browser extension, a mobile app, or a command-line tool, regular checks of your SSL certificates can help maintain the security and trustworthiness of your website.