Http://....com Blocked; Https://....com Okay - Please Explain

BitDefender Free blocked http://dry****.com, but allowed me to access https://dry****.com.

I would assume that the pages on that site are the same, just that https encrypts them. It doesn't

seem as if https would protect a visitor from malware, but I'm curious. Why would BitDefender

flag the http site and not https?

Thanks.