I have a wildcard domain certificate from StartSSL for a site (https://later.webblocks.nl/).
When I check it in any browser on my home PC, it's all good. (Green lock in Chrome.) When I check it in Chrome on my work PC, it's not good:
On the same computer, other browsers are fine with it. On other computers, Chrome is fine with it too. I tried restarting, flushing caches, incognito mode, etc. Nothing changes.
It's no real problem for me, because I know it's safe, but it's still annoying.
PS. Chrome did something like this a while ago with Windows XP: suddenly websites were 'unsafe' because Windows protocols were unsafe. Both PC's are Windows 7 and the same version of Chrome, so that's probably not it...
For some reason the 2 computers have different certificate chains. The domain certificate and root certificate are the same, but the intermediary is different. On my home PC it uses sha2, on my work PC it uses sha1. The intermediary is included in the server cert (which has sha2), so that's weird. All the SSL checkers only detect the sha2 intermediary cert. What's going on!?