https://weakdh.org/ relies on you not blocking stuff, like 3th party requests. The test works by trying to load https://dhe512.zmap.io/ using JavaScript, a page which requires the vulnerable algorithms. When it fails to load, the JavaScript reports that you are safe.
For a more reliable test you can use https://dhe512.zmap.io/ . If the page
doesn't load, then you are safe. Abrowser will give a "Secure Connection
Failed" message when you aren't using the vulnerable algorithms. Otherwise
you'll see the message "If you can view this page, your browser is vulnerable
to the LogJam attack.".
- Re: [Trisquel-users] Logjam browser fix breaks Trisquel's webs... martin