Throw exception for sites with no SSL support

[EngKhaledB]

Thank you for the library, It helped me a lot with automating the SSL expiry check for bulk of domains. I only found an issue when there is a domain with no SSL enabled, it did not work, a fatal error raises and no exception thrown.

I am not sure how to include a test for this feature, because I was not able to find a public domain with no SSL support to add to the test scenario. It worked for me on a domain with the same issue on the domains list I have.

I hope this would help!.