Aforementioned URL (bein redirected to https://www.dudz.cz) is considered untrusted in Gentoo Linux, while my Win 7 computers all consider the certificate valid. Is there just some certificate missing (PostSignum authority)? Reproducible: Always
requests for adding to ca-certificates should be sent to Debian since we don't maintain a list of certs ourselves: http://www.debian.org/Bugs/Reporting once they do that, Gentoo will get the update automatically you didn't say what browser you were using, but firefox has a bug open for it: https://bugzilla.mozilla.org/show_bug.cgi?id=643398
> you didn't say what browser you were using, but firefox has a bug open for > it: > https://bugzilla.mozilla.org/show_bug.cgi?id=643398 Happens in both Chrome as well as in Firefox.