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.
- 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
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: