Not sure if you noticed but the site keeps giving me a 'error' page where it says your cert expired as of 2/16/18. I'm fairly certain you aren't doing something sketchy but it is a constant thing. 

Also am getting this, so it isnt an issue with indivisual's computers. I also doubt theres anything sketchy happening. Heres a copy paste on out of date certs. Seems like it just needs to be refreshed, nothing scary.

• Certificate out of date: the certificate has expired and is no longer valid. A website that uses outdated certificate has low security standards. Banks and financial institutions will never use expired certificate. Check your computer clock to make sure the date is correct. If the date on your computer is ahead of time this message might popup.

We had a routine SSL certificate update this night. Our certificate is valid at this point, but it may happen that some broswers have cached the old certificate. Usually a simple system reboot helps to drop the outdated SSL info. If this doesn't help, please try clearing the SSL state of your browser.