On the Usability of Deploying HTTPS [pdf]
sba-research.org
sba-research.org
There is a Mozilla tool called Observatory that seems pretty comprehensive in checking TLS setup and some other security settings, headers, etc: https://observatory.mozilla.org
There we go again. You can find it every where. The human tendency to underestimate how much we don't understand , and how much others don't understand. Ahh, and how fast everyone forgot it.
https://mozilla.github.io/server-side-tls/ssl-config-generat...