Revisiting this. Here’s a great online tool recently built: https://www.ssllabs.com/ssldb/analyze.html
e.g.
Paypal:
https://www.ssllabs.com/ssldb/analyze.html?d=https://paypal.com
There are more details when you drill into a specific server.
When this question was asked I remember I was looking for resources I could use to build a tool that would automatically check if ssl was configured “properly” for a given site; at least that a given site was not going to display various ssl errors in various browsers. There are however many types of ssl/tls “misconfiguration” and many browsers handle the cases differently. Anticipating 100% if a browser is going to display any messaging at all or any given messaging about encryption is quite challenging as it turns out.
But this is a good manual tool. What would be great is an open source command line tool that has this level of summary, for plugging into deploy tests or monitoring.