This is about Chrome 50 and later. When visiting an https site, where can I find the negotiated cipher suite? I know where to find this info in previous versions of Chrome but I'm not able to find it in versions greater or equal to 50.
More recent Chrome versions make it both easier and harder.
The bad news: The “Details” link has been removed. Now you have to open the Developer Tools with
I, or by clicking on the ⋮ Chrome menu > “More tools” > “Developer tools”, and then click on the “Security” tab.
More positively, the information has now been added to the “🔒 Overview” section without reloading, and includes the key exchange group (e.g. the elliptic curve P-256).
another update: in the newest versions [I'm on the 64 bit version 59.0.3071.115] looks like there is a specific security tab to display this info in the Developer Tools:
Click on the 🔒 lock icon in the location bar
Click on the “Details” link next to “Your connection to this site is private.” This opens the Security tab of the Developer Tools.
Reload the page.
The Security thing’s left column goes “🔒 Overview”, “Main Origin”… Click on the next one, “⚫ https://security.stackexchange.com”.
Connection Protocol TLS 1.2 Key Exchange ECDHE_ECDSA Cipher Suite AES_128_GCM