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How can I inspect a https zert with firefox 151.0.1 (64-bit)

rundekugel

I'm used to check certs with right click on icon beside the address. Also for own servers in my local LAN I need this. I know there is Let's Encrypt. But sometimes it's more easy to just have a self signed cert and verify it myself. Also I want to see, who signed a cert from www.snakeoil.com/insert_your_credetials.

Please help.

rundekugel

I'm used to check certs with right click on icon beside the address. Also for own servers in my local LAN I need this. I know there is Let's Encrypt. But sometimes it's more easy to just have a self signed cert and verify it myself. Also I want to see, who signed a cert from www.snakeoil.com/insert_your_credetials. Please help. rundekugel

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選ばれた解決策

Ah ... sorry, I found it. left clik on security icon, then very upper right corner.

Only connections that can be established will have the security details to show the cert info.

So for literally https://www.ssllabs.com/ssltest/analyze.html?d=www.snakeoil.com the TLS handshake is totally invalid and the cert can't even be checked for the chain etc.; you'd need to go more low–level to understand what this exact site is sending in response — a browser is unable to even parse that.

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