SSL certificate chain resolver

When you purchase an SSL certificate from a certificate authority, in most cases it is signed not by the root certificate of this authority, but by an intermediate certificate(s). The path from your certificate through those intermediates and up to the root is called a certificate chain. While browsers can resolve those chains by downloading certificates from sources specified in them, the whole chain except for the root cert is better to be included in the response your server sends during TLS connection.

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