httpS.......
in Secure website addresses, The S in httpS stands for security. Unless you're able to type in httpS://www.nfldwifi.com/ and get your Secure site, your certificate isn't being utilised and your customers aren't being protected. When I visit the address httpS://www.nfldwifi.com/ I do NOT get a page at all. This indicates a problem with your certificate configuration/setup/install and the server you're running it on.
Please ensure you've followed the correct procedure to install your purchased certificate onto the IIS version that you're running.
Hope this gives you a lead.
Deb