Comment (by Steven R. Brandt):

Weird. Chrome says, “certificate valid.” If I call “openssl s_client -servername cactuscode.org -showcerts -connect cactuscode.org:443” I don’t see a certificate. If I do “openssl s_client -servername cactuscode.org -showcerts -connect www.cactuscode.org:443” I see a github cert (since the site is now on github). Nowhere, though, do I see an lsu.edu cert. Could that be cached on your machine, Erik?

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2536/certificate-for-https-cactuscodeorg-is-not