Mozilla Observatory
observatory.mozilla.org

The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.

This one is interesting because it checks several factors others do not and aggregates reports from other well known tools like ssl labs.

Top-level grades are all over the place and probably should come with a grain of salt, but it allows drilling down.

Some sample results:

Ephera
211d

Scooched my personal webpage from an F to a C. 👍

I could go higher, but it’s pretty much a static webpage with really benign content, so things like enforcing HTTPS seems really unnecessary.

Dreeg Ocedam
112d

I think that the grade itself is not really representative of the true security of the website, however it is a great tool to know what can be improved in one’s own website.

Confidentiality Integrity Availability