[Vigilanteman]

What did the warning say?

[Mmogamer]

Expired security cert.

[higgmeister]

Your connection is not private
Attackers might be trying to steal your information from www.freerepublic.com (for example, passwords, messages, or credit cards). Learn more
NET::ERR_CERT_DATE_INVALID

Help improve Chrome security by sending URLs of some pages you visit, limited system information, and some page content to Google. Privacy policy

There is an "Advanced button" That allows bypassing the Alert and visiting the dangerous FReeRepublic anyway.