In today's digital world, ensuring internet security is more important than ever. SSL certificates are one of the cornerstones of this security. So, how can you check if an SSL certificate is valid? In this article, you will find the answer to the question "How to check an SSL certificate".
An SSL (Secure Sockets Layer) certificate is a security protocol used to establish a secure connection between websites and users. This certificate ensures that data is transmitted in an encrypted form, preventing third-party access. Validating an SSL certificate is crucial for confirming the identity of a website and ensuring the protection of data. The validation process allows users to exchange information securely and protects them from threats like phishing attacks.
Browsers allow you to check the validity of SSL certificates. Here's how to do it step by step:
Command line tools provide an effective way to validate SSL certificates. Here are some commonly used methods:
openssl s_client -connect www.example.com:443 -showcerts
curl -vI https://www.example.com
SSL certificates have a specific validity period and need to be renewed after that period. Here are some tips for managing this process:
Third-party tools provide user-friendly interfaces for checking SSL certificates. Here are some popular tools: