The ESTA website is down for a few days now. What are the alternatives?

The ESTA website has been down for days, and I wanted to check the validity of my ESTA. Trying to find an alternative I called the US Consulate in Athens (uselsess, they gave me the wrong phone number for CBP) and waiting at the CBP line 20 minutes though useless information (Seriously usability score is 0) until a very helpful lady there gave me the actual ESTA office phone number (at the moment of writing +12023443710) which I called at 09:30 EDT on Friday and was told that they cannot answer the phone right now as their normal office hours is 07:30 to 17:00 EST (I am sure they meant EDT/EST) Monday to Friday. Can anyone tell me what are the alternatives for and to obtaining an ESTA (and checking validity of one)? Is there some US gov service that actually answers? What will happen if I get there and the immigration officer tells me that my ESTA has expired?

UPDATE: The problem seems to be from my IP (and the http does not get redirected to https) and I managed to work around it by using a VPN to New York. I will hold out for an answer about alternatives as that is what the question was about.