Everyone I know likes the SSL assessment tool on the SSL Labs web site, but many dislike the fact that their domain name may end up on one of the boards that display recent test history. I am assuming most wouldn’t mind being on the "Recent Best-Rated" one, but you never know before the test how it’s going to turn out.
That’s why we now support the private assessment option. If you tick the checkbox underneath the domain name field, the test results will not be publicly revealed. Not only that, but the results will remain hidden for as long as the results remain cached.
If you intend to send links to hidden assessment results, make sure the URL contains the "hiddenResults=on" bit, which is needed to ensure that a new public test is run after the earlier results expire from the cache.