Whenever I try to open this site, my Firefox displays a warning:
The owner of linearalgebras.com has configured their website improperly.
To protect your information from being stolen, Firefox has not connected to this website.linearalgebras.com uses an invalid security certificate. The certificate is only valid for the following names: *.github.com, github.com, *.github.io Error code: SSL_ERROR_BAD_CERT_DOMAIN
How can I check if it's safe for me to access the site?
Any help would be appreciated.