It seems the suitecrm.com site is served at the root domain and the www subdomain (no redirects to whichever one should be the canonical version).
In my signup and download experience I ended up on:
https://www.suitecrm.com/download
– this page has broken images (due to font-file cors issues) and more importantly a broken download link
Visiting the page without ‘www’ worked correctly:
https://suitecrm.com/download
Tested on Chrome Mac - 61.0.3163.100