While you are at it looking for the cert and stuff please also double check overall speed of the site, got some mixed results really, opening and trying the download link (checked from 4 different locations whereas it appeared reaaly slow from at least two). Maybe you can beef up server-provider side?
More serious: there are at least 5 HTTP500 timeouts for some font-files referenced + at least one javascript error. Also cross-browser testing shows the site isn't working in older IEs (9 to be specific - of course a pain for sure and really not a biggie in regard of importance but should be taken care of later).
So just a little nit-picking from my end
and hope you get those
little itches sorted out to give a real professional impression also in this technical regard.
Thanks for your hard work