[Tech] A server to test client certificates?

[Stephane Bortzmeyer]

On Sun, Nov 28, 2021 at 04:41:09PM -0700,
 Mansfield <mansfield@ondollo.com> wrote 
 a message of 68 lines which said:

> The gemini server at ondollo.com has some URLs to test clients, one of
> which will respond with the common name and a chunk from the first part of
> the fingerprint.

It works fine, thanks.

% agunua --certificate sample-cert-user.pem --key sample-key-user.pem "gemini://ondollo.com/internal/test?showCert"
User:51:DE:B5